treewide: Remove gnat support.

See discussion in https://github.com/NixOS/nixpkgs/commit/6ac7b19c978e951c124c5ea434c94f95f593888e.

31 files changed, 13 insertions, 2184 deletions

diff --git a/pkgs/build-support/cc-wrapper/add-flags.sh b/pkgs/build-support/cc-wrapper/add-flags.sh
index d8b42244607ad..604aaf6b6cf0b 100644
--- a/pkgs/build-support/cc-wrapper/add-flags.sh
+++ b/pkgs/build-support/cc-wrapper/add-flags.sh
@@ -9,7 +9,6 @@ var_templates_list=(
     NIX+CFLAGS_LINK
     NIX+CXXSTDLIB_COMPILE
     NIX+CXXSTDLIB_LINK
-    NIX+GNATFLAGS_COMPILE
 )
 var_templates_bool=(
     NIX+ENFORCE_NO_NATIVE
@@ -51,10 +50,6 @@ if [ -e @out@/nix-support/cc-cflags ]; then
     NIX_@infixSalt@_CFLAGS_COMPILE="$(< @out@/nix-support/cc-cflags) $NIX_@infixSalt@_CFLAGS_COMPILE"
 fi
 
-if [ -e @out@/nix-support/gnat-cflags ]; then
-    NIX_@infixSalt@_GNATFLAGS_COMPILE="$(< @out@/nix-support/gnat-cflags) $NIX_@infixSalt@_GNATFLAGS_COMPILE"
-fi
-
 if [ -e @out@/nix-support/cc-ldflags ]; then
     NIX_@infixSalt@_LDFLAGS+=" $(< @out@/nix-support/cc-ldflags)"
 fi
diff --git a/pkgs/build-support/cc-wrapper/default.nix b/pkgs/build-support/cc-wrapper/default.nix
index ba8aca87c72be..43cd87fb45976 100644
--- a/pkgs/build-support/cc-wrapper/default.nix
+++ b/pkgs/build-support/cc-wrapper/default.nix
@@ -8,7 +8,7 @@
 { name ? ""
 , stdenvNoCC, nativeTools, propagateDoc ? !nativeTools, noLibc ? false, nativeLibc, nativePrefix ? ""
 , cc ? null, libc ? null, bintools, coreutils ? null, shell ? stdenvNoCC.shell
-, zlib ? null, extraPackages ? [], extraBuildCommands ? ""
+, extraPackages ? [], extraBuildCommands ? ""
 , isGNU ? false, isClang ? cc.isClang or false, gnugrep ? null
 , buildPackages ? {}
 }:
@@ -21,9 +21,6 @@ assert !nativeTools ->
 assert !(nativeLibc && noLibc);
 assert (noLibc || nativeLibc) == (libc == null);
 
-# For ghdl (the vhdl language provider to gcc) we need zlib in the wrapper.
-assert cc.langVhdl or false -> zlib != null;
-
 let
   stdenv = stdenvNoCC;
   inherit (stdenv) hostPlatform targetPlatform;
@@ -189,17 +186,6 @@ stdenv.mkDerivation {
 
     + optionalString cc.langGo or false ''
       wrap ${targetPrefix}gccgo ${./cc-wrapper.sh} $ccPath/${targetPrefix}gccgo
-    ''
-
-    + optionalString cc.langAda or false ''
-      wrap ${targetPrefix}gnatgcc ${./cc-wrapper.sh} $ccPath/${targetPrefix}gnatgcc
-      wrap ${targetPrefix}gnatmake ${./gnat-wrapper.sh} $ccPath/${targetPrefix}gnatmake
-      wrap ${targetPrefix}gnatbind ${./gnat-wrapper.sh} $ccPath/${targetPrefix}gnatbind
-      wrap ${targetPrefix}gnatlink ${./gnatlink-wrapper.sh} $ccPath/${targetPrefix}gnatlink
-    ''
-
-    + optionalString cc.langVhdl or false ''
-      ln -s $ccPath/${targetPrefix}ghdl $out/bin/${targetPrefix}ghdl
     '';
 
   propagatedBuildInputs = [ bintools ];
@@ -262,18 +248,6 @@ stdenv.mkDerivation {
       ccLDFlags+=" -L${cc_solib}/lib"
       ccCFlags+=" -B${cc_solib}/lib"
 
-      ${optionalString cc.langVhdl or false ''
-        ccLDFlags+=" -L${zlib.out}/lib"
-      ''}
-
-      # Find the gcc libraries path (may work only without multilib).
-      ${optionalString cc.langAda or false ''
-        basePath=`echo ${cc_solib}/lib/*/*/*`
-        ccCFlags+=" -B$basePath -I$basePath/adainclude"
-        gnatCFlags="-aI$basePath/adainclude -aO$basePath/adalib"
-        echo "$gnatCFlags" > $out/nix-support/gnat-cflags
-      ''}
-
       echo "$ccLDFlags" > $out/nix-support/cc-ldflags
       echo "$ccCFlags" > $out/nix-support/cc-cflags
     ''
diff --git a/pkgs/build-support/cc-wrapper/gnat-wrapper.sh b/pkgs/build-support/cc-wrapper/gnat-wrapper.sh
deleted file mode 100644
index a86c9fe4ada4c..0000000000000
--- a/pkgs/build-support/cc-wrapper/gnat-wrapper.sh
+++ /dev/null
@@ -1,122 +0,0 @@
-#! @shell@
-set -eu -o pipefail +o posix
-shopt -s nullglob
-
-if (( "${NIX_DEBUG:-0}" >= 7 )); then
-    set -x
-fi
-
-# N.B. Gnat is not used during bootstrapping, so we don't need to
-# worry about the old bash empty array `set -u` workarounds.
-
-path_backup="$PATH"
-
-# phase separation makes this look useless
-# shellcheck disable=SC2157
-if [ -n "@coreutils_bin@" ]; then
-    PATH="@coreutils_bin@/bin"
-fi
-
-source @out@/nix-support/utils.sh
-
-if [ -z "${NIX_@infixSalt@_GNAT_WRAPPER_FLAGS_SET:-}" ]; then
-    source @out@/nix-support/add-flags.sh
-fi
-
-
-# Figure out if linker flags should be passed.  GCC prints annoying
-# warnings when they are not needed.
-dontLink=0
-nonFlagArgs=0
-
-for i in "$@"; do
-    if [ "$i" = -c ]; then
-        dontLink=1
-    elif [ "$i" = -M ]; then
-        dontLink=1
-    elif [ "${i:0:1}" != - ]; then
-        nonFlagArgs=1
-    fi
-done
-
-# If we pass a flag like -Wl, then gcc will call the linker unless it
-# can figure out that it has to do something else (e.g., because of a
-# "-c" flag).  So if no non-flag arguments are given, don't pass any
-# linker flags.  This catches cases like "gcc" (should just print
-# "gcc: no input files") and "gcc -v" (should print the version).
-if [ "$nonFlagArgs" = 0 ]; then
-    dontLink=1
-fi
-
-
-# Optionally filter out paths not refering to the store.
-params=("$@")
-if [[ "${NIX_ENFORCE_PURITY:-}" = 1 && -n "$NIX_STORE" ]]; then
-    rest=()
-    for p in "${params[@]}"; do
-        if [ "${p:0:3}" = -L/ ] && badPath "${p:2}"; then
-            skip "${p:2}"
-        elif [ "${p:0:3}" = -I/ ] && badPath "${p:2}"; then
-            skip "${p:2}"
-        elif [ "${p:0:4}" = -aI/ ] && badPath "${p:3}"; then
-            skip "${p:2}"
-        elif [ "${p:0:4}" = -aO/ ] && badPath "${p:3}"; then
-            skip "${p:2}"
-        else
-            rest+=("$p")
-        fi
-    done
-    params=("${rest[@]}")
-fi
-
-
-# Clear march/mtune=native -- they bring impurity.
-if [ "$NIX_@infixSalt@_ENFORCE_NO_NATIVE" = 1 ]; then
-    rest=()
-    for p in "${params[@]}"; do
-        if [[ "$p" = -m*=native ]]; then
-            skip "$p"
-        else
-            rest+=("$p")
-        fi
-    done
-    params=("${rest[@]}")
-fi
-
-
-# Add the flags for the GNAT compiler proper.
-extraAfter=($NIX_@infixSalt@_GNATFLAGS_COMPILE)
-extraBefore=()
-
-if [ "$(basename "$0")x" = "gnatmakex" ]; then
-  extraBefore=("--GNATBIND=@out@/bin/gnatbind" "--GNATLINK=@out@/bin/gnatlink ")
-fi
-
-#if [ "$dontLink" != 1 ]; then
-#    # Add the flags that should be passed to the linker (and prevent
-#    # `ld-wrapper' from adding NIX_@infixSalt@_LDFLAGS again).
-#    for i in $NIX_@infixSalt@_LDFLAGS_BEFORE; do
-#        extraBefore+=("-largs" "$i")
-#    done
-#    for i in $NIX_@infixSalt@_LDFLAGS; do
-#        if [ "${i:0:3}" = -L/ ]; then
-#            extraAfter+=("$i")
-#        else
-#            extraAfter+=("-largs" "$i")
-#        fi
-#    done
-#    export NIX_@infixSalt@_LDFLAGS_SET=1
-#fi
-
-# Optionally print debug info.
-if (( "${NIX_DEBUG:-0}" >= 1 )); then
-    echo "extra flags before to @prog@:" >&2
-    printf "  %q\n" "${extraBefore[@]}"  >&2
-    echo "original flags to @prog@:" >&2
-    printf "  %q\n" "${params[@]}" >&2
-    echo "extra flags after to @prog@:" >&2
-    printf "  %q\n" "${extraAfter[@]}" >&2
-fi
-
-PATH="$path_backup"
-exec @prog@ "${extraBefore[@]}" "${params[@]}" "${extraAfter[@]}"
diff --git a/pkgs/build-support/cc-wrapper/gnatlink-wrapper.sh b/pkgs/build-support/cc-wrapper/gnatlink-wrapper.sh
deleted file mode 100644
index 0944d74e431b1..0000000000000
--- a/pkgs/build-support/cc-wrapper/gnatlink-wrapper.sh
+++ /dev/null
@@ -1,40 +0,0 @@
-#! @shell@
-set -eu -o pipefail +o posix
-shopt -s nullglob
-
-if (( "${NIX_DEBUG:-0}" >= 7 )); then
-    set -x
-fi
-
-# N.B. Gnat is not used during bootstrapping, so we don't need to
-# worry about the old bash empty array `set -u` workarounds.
-
-# Add the flags for the GNAT compiler proper.
-extraAfter=("--GCC=@out@/bin/gcc")
-extraBefore=()
-
-## Add the flags that should be passed to the linker (and prevent
-## `ld-wrapper' from adding NIX_@infixSalt@_LDFLAGS again).
-#for i in $NIX_@infixSalt@_LDFLAGS_BEFORE; do
-#    extraBefore+=("-largs" "$i")
-#done
-#for i in $NIX_@infixSalt@_LDFLAGS; do
-#    if [ "${i:0:3}" = -L/ ]; then
-#        extraAfter+=("$i")
-#    else
-#        extraAfter+=("-largs" "$i")
-#    fi
-#done
-#export NIX_@infixSalt@_LDFLAGS_SET=1
-
-# Optionally print debug info.
-if (( "${NIX_DEBUG:-0}" >= 1 )); then
-    echo "extra flags before to @prog@:" >&2
-    printf "  %q\n" "${extraBefore[@]}"  >&2
-    echo "original flags to @prog@:" >&2
-    printf "  %q\n" "$@" >&2
-    echo "extra flags after to @prog@:" >&2
-    printf "  %q\n" "${extraAfter[@]}" >&2
-fi
-
-exec @prog@ "${extraBefore[@]}" "$@" "${extraAfter[@]}"
diff --git a/pkgs/build-support/gcc-wrapper-old/add-flags b/pkgs/build-support/gcc-wrapper-old/add-flags
deleted file mode 100644
index 93da917a54158..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/add-flags
+++ /dev/null
@@ -1,28 +0,0 @@
-# `-B@out@/bin' forces cc to use ld-wrapper.sh when calling ld.
-export NIX_CFLAGS_COMPILE="-B@out@/bin/ $NIX_CFLAGS_COMPILE"
-
-if test -e @out@/nix-support/libc-cflags; then
-    export NIX_CFLAGS_COMPILE="$(cat @out@/nix-support/libc-cflags) $NIX_CFLAGS_COMPILE"
-fi
-
-if test -e @out@/nix-support/cc-cflags; then
-    export NIX_CFLAGS_COMPILE="$(cat @out@/nix-support/cc-cflags) $NIX_CFLAGS_COMPILE"
-fi
-
-if test -e @out@/nix-support/gnat-cflags; then
-    export NIX_GNATFLAGS_COMPILE="$(cat @out@/nix-support/gnat-cflags) $NIX_GNATFLAGS_COMPILE"
-fi
-
-if test -e @out@/nix-support/libc-ldflags; then
-    export NIX_LDFLAGS="$NIX_LDFLAGS $(cat @out@/nix-support/libc-ldflags)"
-fi
-
-if test -e @out@/nix-support/cc-ldflags; then
-    export NIX_LDFLAGS="$NIX_LDFLAGS $(cat @out@/nix-support/cc-ldflags)"
-fi
-
-if test -e @out@/nix-support/libc-ldflags-before; then
-    export NIX_LDFLAGS_BEFORE="$(cat @out@/nix-support/libc-ldflags-before) $NIX_LDFLAGS_BEFORE"
-fi
-
-export NIX_CC_WRAPPER_FLAGS_SET=1
diff --git a/pkgs/build-support/gcc-wrapper-old/builder.sh b/pkgs/build-support/gcc-wrapper-old/builder.sh
deleted file mode 100644
index 22e32814927e0..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/builder.sh
+++ /dev/null
@@ -1,215 +0,0 @@
-source $stdenv/setup
-
-
-mkdir -p $out/bin
-mkdir -p $out/nix-support
-
-
-if test -z "$nativeLibc"; then
-    dynamicLinker="$libc/lib/$dynamicLinker"
-    echo $dynamicLinker > $out/nix-support/dynamic-linker
-
-    if test -e $libc/lib/32/ld-linux.so.2; then
-        echo $libc/lib/32/ld-linux.so.2 > $out/nix-support/dynamic-linker-m32
-    fi
-
-    # The "-B$libc/lib/" flag is a quick hack to force gcc to link
-    # against the crt1.o from our own glibc, rather than the one in
-    # /usr/lib.  (This is only an issue when using an `impure'
-    # compiler/linker, i.e., one that searches /usr/lib and so on.)
-    #
-    # Unfortunately, setting -B appears to override the default search
-    # path. Thus, the gcc-specific "../includes-fixed" directory is
-    # now longer searched and glibc's <limits.h> header fails to
-    # compile, because it uses "#include_next <limits.h>" to find the
-    # limits.h file in ../includes-fixed. To remedy the problem,
-    # another -idirafter is necessary to add that directory again.
-    echo "-B$libc/lib/ -idirafter $libc_dev/include -idirafter $gcc/lib/gcc/*/*/include-fixed" > $out/nix-support/libc-cflags
-
-    echo "-L$libc/lib" > $out/nix-support/libc-ldflags
-
-    # The dynamic linker is passed in `ldflagsBefore' to allow
-    # explicit overrides of the dynamic linker by callers to gcc/ld
-    # (the *last* value counts, so ours should come first).
-    echo "-dynamic-linker" $dynamicLinker > $out/nix-support/libc-ldflags-before
-fi
-
-if test -n "$nativeTools"; then
-    gccPath="$nativePrefix/bin"
-    ldPath="$nativePrefix/bin"
-else
-    if test -e "$gcc/lib64"; then
-        gccLDFlags="$gccLDFlags -L$gcc_lib/lib64"
-    fi
-    gccLDFlags="$gccLDFlags -L$gcc_lib/lib"
-    if [ -n "$langVhdl" ]; then
-        gccLDFlags="$gccLDFlags -L$zlib/lib"
-    fi
-    echo "$gccLDFlags" > $out/nix-support/cc-ldflags
-
-    # GCC shows $gcc/lib in `gcc -print-search-dirs', but not
-    # $gcc/lib64 (even though it does actually search there...)..
-    # This confuses libtool.  So add it to the compiler tool search
-    # path explicitly.
-    if test -e "$gcc/lib64"; then
-        gccCFlags="$gccCFlags -B$gcc/lib64"
-    fi
-
-    # Find the gcc libraries path (may work only without multilib)
-    if [ -n "$langAda" ]; then
-        basePath=`echo $gcc/lib/*/*/*`
-        gccCFlags="$gccCFlags -B$basePath -I$basePath/adainclude"
-
-        gnatCFlags="-aI$basePath/adainclude -aO$basePath/adalib"
-        echo "$gnatCFlags" > $out/nix-support/gnat-cflags
-    fi
-    echo "$gccCFlags" > $out/nix-support/cc-cflags
-    
-    gccPath="$gcc/bin"
-    # On Illumos/Solaris we might prefer native ld
-    if test -n "$nativePrefix"; then
-      ldPath="$nativePrefix/bin"
-    else
-      ldPath="$binutils/bin"
-    fi;
-fi
-
-
-doSubstitute() {
-    local src=$1
-    local dst=$2
-    local ld="$ldPath/ld"
-    if $ld -V 2>&1 |grep Solaris; then
-      # Use Solaris specific linker wrapper
-      ld="$out/bin/ld-solaris"
-    fi
-    # Can't use substitute() here, because replace may not have been
-    # built yet (in the bootstrap).
-    sed \
-        -e "s^@out@^$out^g" \
-        -e "s^@shell@^$shell^g" \
-        -e "s^@gcc@^$gcc^g" \
-        -e "s^@gccProg@^$gccProg^g" \
-        -e "s^@gnatProg@^$gnatProg^g" \
-        -e "s^@gnatlinkProg@^$gnatlinkProg^g" \
-        -e "s^@binutils@^$binutils^g" \
-        -e "s^@coreutils@^$coreutils^g" \
-        -e "s^@libc@^$libc^g" \
-        -e "s^@libc_bin@^$libc_bin^g" \
-        -e "s^@ld@^$ld^g" \
-        < "$src" > "$dst" 
-}
-
-
-# Make wrapper scripts around gcc, g++, and gfortran.  Also make symlinks
-# cc, c++, and f77.
-mkGccWrapper() {
-    local dst=$1
-    local src=$2
-
-    if ! test -f "$src"; then
-        echo "$src does not exist (skipping)"
-        return 1
-    fi
-
-    gccProg="$src"
-    doSubstitute "$gccWrapper" "$dst"
-    chmod +x "$dst"
-}
-
-mkGnatWrapper() {
-    local dst=$1
-    local src=$2
-
-    if ! test -f "$src"; then
-        echo "$src does not exist (skipping)"
-        return 1
-    fi
-
-    gnatProg="$src"
-    doSubstitute "$gnatWrapper" "$dst"
-    chmod +x "$dst"
-}
-
-mkGnatLinkWrapper() {
-    local dst=$1
-    local src=$2
-
-    if ! test -f "$src"; then
-        echo "$src does not exist (skipping)"
-        return 1
-    fi
-
-    gnatlinkProg="$src"
-    doSubstitute "$gnatlinkWrapper" "$dst"
-    chmod +x "$dst"
-}
-
-if mkGccWrapper $out/bin/gcc $gccPath/gcc
-then
-    ln -sv gcc $out/bin/cc
-fi
-
-if mkGccWrapper $out/bin/g++ $gccPath/g++
-then
-    ln -sv g++ $out/bin/c++
-fi
-
-mkGccWrapper $out/bin/cpp $gccPath/cpp || true
-
-if mkGccWrapper $out/bin/gfortran $gccPath/gfortran
-then
-    ln -sv gfortran $out/bin/g77
-    ln -sv gfortran $out/bin/f77
-fi
-
-mkGccWrapper $out/bin/gcj $gccPath/gcj || true
-
-mkGccWrapper $out/bin/gccgo $gccPath/gccgo || true
-
-mkGccWrapper $out/bin/gnatgcc $gccPath/gnatgcc || true
-mkGnatWrapper $out/bin/gnatmake $gccPath/gnatmake || true
-mkGnatWrapper $out/bin/gnatbind $gccPath/gnatbind || true
-mkGnatLinkWrapper $out/bin/gnatlink $gccPath/gnatlink || true
-
-if [ -f $gccPath/ghdl ]; then
-    ln -sf $gccPath/ghdl $out/bin/ghdl
-fi
-
-
-# Create a symlink to as (the assembler).  This is useful when a
-# gcc-wrapper is installed in a user environment, as it ensures that
-# the right assembler is called.
-ln -s $ldPath/as $out/bin/as
-
-
-# Make a wrapper around the linker.
-doSubstitute "$ldWrapper" "$out/bin/ld"
-chmod +x "$out/bin/ld"
-
-# Copy solaris ld wrapper if needed
-if $ldPath/ld -V 2>&1 |grep Solaris; then
-  # Use Solaris specific linker wrapper
-  sed -e "s^@ld@^$ldPath/ld^g" < "$ldSolarisWrapper" > "$out/bin/ld-solaris"
-  chmod +x "$out/bin/ld-solaris"
-fi
-
-
-# Emit a setup hook.  Also store the path to the original GCC and
-# Glibc.
-test -n "$gcc" && echo $gcc > $out/nix-support/orig-cc
-test -n "$libc" && echo $libc > $out/nix-support/orig-libc
-
-doSubstitute "$addFlags" "$out/nix-support/add-flags.sh"
-
-doSubstitute "$setupHook" "$out/nix-support/setup-hook"
-
-cp -p $utils $out/nix-support/utils.sh
-
-
-# Propagate the wrapped gcc so that if you install the wrapper, you get
-# tools like gcov, the manpages, etc. as well (including for binutils
-# and Glibc).
-if test -z "$nativeTools"; then
-    printWords $gcc $binutils $libc $libc_bin > $out/nix-support/propagated-user-env-packages
-fi
diff --git a/pkgs/build-support/gcc-wrapper-old/default.nix b/pkgs/build-support/gcc-wrapper-old/default.nix
deleted file mode 100644
index 2c2b2c0e1d5c5..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/default.nix
+++ /dev/null
@@ -1,76 +0,0 @@
-# The Nix `gcc' stdenv.mkDerivation is not directly usable, since it doesn't
-# know where the C library and standard header files are.  Therefore
-# the compiler produced by that package cannot be installed directly
-# in a user environment and used from the command line.  This
-# stdenv.mkDerivation provides a wrapper that sets up the right environment
-# variables so that the compiler and the linker just "work".
-
-{ name ? "", stdenv, lib, nativeTools, nativeLibc, nativePrefix ? ""
-, gcc ? null, libc ? null, binutils ? null, coreutils ? null, shell ? stdenv.shell
-, zlib ? null
-, hostPlatform, targetPlatform, targetPackages
-}:
-
-assert nativeTools -> nativePrefix != "";
-assert !nativeTools -> gcc != null && binutils != null && coreutils != null;
-assert !nativeLibc -> libc != null;
-
-# For ghdl (the vhdl language provider to gcc) we need zlib in the wrapper
-assert (gcc != null && gcc ? langVhdl && gcc.langVhdl) -> zlib != null;
-
-let
-
-  gccVersion = (builtins.parseDrvName gcc.name).version;
-  gccName = (builtins.parseDrvName gcc.name).name;
-
-  langGo = if nativeTools then false else gcc ? langGo && gcc.langGo;
-in
-
-stdenv.mkDerivation {
-  name =
-    (if name != "" then name else gccName + "-wrapper") +
-    (if gcc != null && gccVersion != "" then "-" + gccVersion else "");
-
-  builder = ./builder.sh;
-  setupHook = ./setup-hook.sh;
-  gccWrapper = ./gcc-wrapper.sh;
-  gnatWrapper = ./gnat-wrapper.sh;
-  gnatlinkWrapper = ./gnatlink-wrapper.sh;
-  ldWrapper = ./ld-wrapper.sh;
-  ldSolarisWrapper = ./ld-solaris-wrapper.sh;
-  utils = ./utils.sh;
-  addFlags = ./add-flags;
-
-  inherit nativeTools nativeLibc nativePrefix gcc;
-  gcc_lib = lib.getLib gcc;
-  libc = if nativeLibc then null else libc;
-  libc_dev = if nativeLibc then null else lib.getDev libc;
-  libc_bin = if nativeLibc then null else lib.getBin libc;
-  binutils = if nativeTools then null else lib.getBin binutils;
-  # The wrapper scripts use 'cat', so we may need coreutils
-  coreutils = if nativeTools then null else lib.getBin coreutils;
-
-  langC = if nativeTools then true else gcc.langC;
-  langCC = if nativeTools then true else gcc.langCC;
-  langFortran = if nativeTools then false else gcc ? langFortran;
-  langAda = if nativeTools then false else gcc ? langAda && gcc.langAda;
-  langVhdl = if nativeTools then false else gcc ? langVhdl && gcc.langVhdl;
-  zlib = if gcc != null && gcc ? langVhdl then zlib else null;
-  shell = shell + shell.shellPath or "";
-
-  preferLocalBuild = true;
-
-  meta =
-    let gcc_ = if gcc != null then gcc else {}; in
-    (if gcc_ ? meta then removeAttrs gcc.meta ["priority"] else {}) //
-    { description =
-        stdenv.lib.attrByPath ["meta" "description"] "System C compiler" gcc_
-        + " (wrapper script)";
-    };
-
-  # The dynamic linker has different names on different platforms.
-  dynamicLinker =
-    if !nativeLibc then
-      targetPackages.stdenv.cc.bintools.dynamicLinker
-    else "";
-}
diff --git a/pkgs/build-support/gcc-wrapper-old/gcc-wrapper-old.sh b/pkgs/build-support/gcc-wrapper-old/gcc-wrapper-old.sh
deleted file mode 100644
index a9d18036952eb..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/gcc-wrapper-old.sh
+++ /dev/null
@@ -1,146 +0,0 @@
-#! @shell@ -e
-
-if [ -n "$NIX_CC_WRAPPER_START_HOOK" ]; then
-    source "$NIX_CC_WRAPPER_START_HOOK"
-fi
-
-if [ -z "$NIX_CC_WRAPPER_FLAGS_SET" ]; then
-    source @out@/nix-support/add-flags.sh
-fi
-
-source @out@/nix-support/utils.sh
-
-
-# Figure out if linker flags should be passed.  GCC prints annoying
-# warnings when they are not needed.
-dontLink=0
-getVersion=0
-nonFlagArgs=0
-
-for i in "$@"; do
-    if [ "$i" = -c ]; then
-        dontLink=1
-    elif [ "$i" = -S ]; then
-        dontLink=1
-    elif [ "$i" = -E ]; then
-        dontLink=1
-    elif [ "$i" = -E ]; then
-        dontLink=1
-    elif [ "$i" = -M ]; then
-        dontLink=1
-    elif [ "$i" = -MM ]; then
-        dontLink=1
-    elif [ "$i" = -x ]; then
-        # At least for the cases c-header or c++-header we should set dontLink.
-        # I expect no one use -x other than making precompiled headers.
-        dontLink=1
-    elif [ "${i:0:1}" != - ]; then
-        nonFlagArgs=1
-    elif [ "$i" = -m32 ]; then
-        if [ -e @out@/nix-support/dynamic-linker-m32 ]; then
-            NIX_LDFLAGS="$NIX_LDFLAGS -dynamic-linker $(cat @out@/nix-support/dynamic-linker-m32)"
-        fi
-    fi
-done
-
-# If we pass a flag like -Wl, then gcc will call the linker unless it
-# can figure out that it has to do something else (e.g., because of a
-# "-c" flag).  So if no non-flag arguments are given, don't pass any
-# linker flags.  This catches cases like "gcc" (should just print
-# "gcc: no input files") and "gcc -v" (should print the version).
-if [ "$nonFlagArgs" = 0 ]; then
-    dontLink=1
-fi
-
-
-# Optionally filter out paths not refering to the store.
-params=("$@")
-if [ "$NIX_ENFORCE_PURITY" = 1 -a -n "$NIX_STORE" ]; then
-    rest=()
-    n=0
-    while [ $n -lt ${#params[*]} ]; do
-        p=${params[n]}
-        p2=${params[$((n+1))]}
-        if [ "${p:0:3}" = -L/ ] && badPath "${p:2}"; then
-            skip $p
-        elif [ "$p" = -L ] && badPath "$p2"; then
-            n=$((n + 1)); skip $p2
-        elif [ "${p:0:3}" = -I/ ] && badPath "${p:2}"; then
-            skip $p
-        elif [ "$p" = -I ] && badPath "$p2"; then
-            n=$((n + 1)); skip $p2
-        elif [ "$p" = -isystem ] && badPath "$p2"; then
-            n=$((n + 1)); skip $p2
-        else
-            rest=("${rest[@]}" "$p")
-        fi
-        n=$((n + 1))
-    done
-    params=("${rest[@]}")
-fi
-
-
-# Add the flags for the C compiler proper.
-extraAfter=($NIX_CFLAGS_COMPILE)
-extraBefore=()
-
-# When enforcing purity, pretend gcc can't find the current date and
-# time
-if [ "$NIX_ENFORCE_PURITY" = 1 ]; then
-    extraAfter+=('-D__DATE__="Jan 01 1970"'
-        '-D__TIME__="00:00:01"'
-        )
-fi
-
-
-if [ "$dontLink" != 1 ]; then
-
-    # Add the flags that should only be passed to the compiler when
-    # linking.
-    extraAfter+=($NIX_CFLAGS_LINK)
-
-    # Add the flags that should be passed to the linker (and prevent
-    # `ld-wrapper' from adding NIX_LDFLAGS again).
-    for i in $NIX_LDFLAGS_BEFORE; do
-        extraBefore=(${extraBefore[@]} "-Wl,$i")
-    done
-    for i in $NIX_LDFLAGS; do
-        if [ "${i:0:3}" = -L/ ]; then
-            extraAfter+=("$i")
-        else
-            extraAfter+=("-Wl,$i")
-        fi
-    done
-    export NIX_LDFLAGS_SET=1
-fi
-
-# As a very special hack, if the arguments are just `-v', then don't
-# add anything.  This is to prevent `gcc -v' (which normally prints
-# out the version number and returns exit code 0) from printing out
-# `No input files specified' and returning exit code 1.
-if [ "$*" = -v ]; then
-    extraAfter=()
-    extraBefore=()
-fi
-
-# Optionally print debug info.
-if [ -n "$NIX_DEBUG" ]; then
-  echo "original flags to @prog@:" >&2
-  for i in "${params[@]}"; do
-      echo "  $i" >&2
-  done
-  echo "extraBefore flags to @prog@:" >&2
-  for i in ${extraBefore[@]}; do
-      echo "  $i" >&2
-  done
-  echo "extraAfter flags to @prog@:" >&2
-  for i in ${extraAfter[@]}; do
-      echo "  $i" >&2
-  done
-fi
-
-if [ -n "$NIX_CC_WRAPPER_EXEC_HOOK" ]; then
-    source "$NIX_CC_WRAPPER_EXEC_HOOK"
-fi
-
-exec @prog@ ${extraBefore[@]} "${params[@]}" "${extraAfter[@]}"
diff --git a/pkgs/build-support/gcc-wrapper-old/gcc-wrapper.sh b/pkgs/build-support/gcc-wrapper-old/gcc-wrapper.sh
deleted file mode 100644
index 8f12f08ddc7c5..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/gcc-wrapper.sh
+++ /dev/null
@@ -1,147 +0,0 @@
-#! @shell@ -e
-
-if test -n "$NIX_CC_WRAPPER_START_HOOK"; then
-    source "$NIX_CC_WRAPPER_START_HOOK"
-fi
-
-if test -z "$NIX_CC_WRAPPER_FLAGS_SET"; then
-    source @out@/nix-support/add-flags.sh
-fi
-
-source @out@/nix-support/utils.sh
-
-
-# Figure out if linker flags should be passed.  GCC prints annoying
-# warnings when they are not needed.
-dontLink=0
-getVersion=0
-nonFlagArgs=0
-
-for i in "$@"; do
-    if test "$i" = "-c"; then
-        dontLink=1
-    elif test "$i" = "-S"; then
-        dontLink=1
-    elif test "$i" = "-E"; then
-        dontLink=1
-    elif test "$i" = "-E"; then
-        dontLink=1
-    elif test "$i" = "-M"; then
-        dontLink=1
-    elif test "$i" = "-MM"; then
-        dontLink=1
-    elif test "$i" = "-x"; then
-        # At least for the cases c-header or c++-header we should set dontLink.
-        # I expect no one use -x other than making precompiled headers.
-        dontLink=1
-    elif test "${i:0:1}" != "-"; then
-        nonFlagArgs=1
-    elif test "$i" = "-m32"; then
-        if test -e @out@/nix-support/dynamic-linker-m32; then
-            NIX_LDFLAGS="$NIX_LDFLAGS -dynamic-linker $(cat @out@/nix-support/dynamic-linker-m32)"
-        fi
-    fi
-done
-
-# If we pass a flag like -Wl, then gcc will call the linker unless it
-# can figure out that it has to do something else (e.g., because of a
-# "-c" flag).  So if no non-flag arguments are given, don't pass any
-# linker flags.  This catches cases like "gcc" (should just print
-# "gcc: no input files") and "gcc -v" (should print the version).
-if test "$nonFlagArgs" = "0"; then
-    dontLink=1
-fi
-
-
-# Optionally filter out paths not refering to the store.
-params=("$@")
-if test "$NIX_ENFORCE_PURITY" = "1" -a -n "$NIX_STORE"; then
-    rest=()
-    n=0
-    while test $n -lt ${#params[*]}; do
-        p=${params[n]}
-        p2=${params[$((n+1))]}
-        if test "${p:0:3}" = "-L/" && badPath "${p:2}"; then
-            skip $p
-        elif test "$p" = "-L" && badPath "$p2"; then
-            n=$((n + 1)); skip $p2
-        elif test "${p:0:3}" = "-I/" && badPath "${p:2}"; then
-            skip $p
-        elif test "$p" = "-I" && badPath "$p2"; then
-            n=$((n + 1)); skip $p2
-        elif test "$p" = "-isystem" && badPath "$p2"; then
-            n=$((n + 1)); skip $p2
-        else
-            rest=("${rest[@]}" "$p")
-        fi
-        n=$((n + 1))
-    done
-    params=("${rest[@]}")
-fi
-
-
-# Add the flags for the C compiler proper.
-extraAfter=($NIX_CFLAGS_COMPILE)
-extraBefore=()
-
-if test "$dontLink" != "1"; then
-
-    # Add the flags that should only be passed to the compiler when
-    # linking.
-    extraAfter=(${extraAfter[@]} $NIX_CFLAGS_LINK)
-
-    # Add the flags that should be passed to the linker (and prevent
-    # `ld-wrapper' from adding NIX_LDFLAGS again).
-    for i in $NIX_LDFLAGS_BEFORE; do
-        extraBefore=(${extraBefore[@]} "-Wl,$i")
-    done
-    for i in $NIX_LDFLAGS; do
-	if test "${i:0:3}" = "-L/"; then
-	    extraAfter=(${extraAfter[@]} "$i")
-	else
-	    extraAfter=(${extraAfter[@]} "-Wl,$i")
-	fi
-    done
-    export NIX_LDFLAGS_SET=1
-fi
-
-# As a very special hack, if the arguments are just `-v', then don't
-# add anything.  This is to prevent `gcc -v' (which normally prints
-# out the version number and returns exit code 0) from printing out
-# `No input files specified' and returning exit code 1.
-if test "$*" = "-v"; then
-    extraAfter=()
-    extraBefore=()
-fi    
-
-# Optionally print debug info.
-if test "$NIX_DEBUG" = "1"; then
-  echo "original flags to @gccProg@:" >&2
-  for i in "${params[@]}"; do
-      echo "  $i" >&2
-  done
-  echo "extraBefore flags to @gccProg@:" >&2
-  for i in ${extraBefore[@]}; do
-      echo "  $i" >&2
-  done
-  echo "extraAfter flags to @gccProg@:" >&2
-  for i in ${extraAfter[@]}; do
-      echo "  $i" >&2
-  done
-fi
-
-if test -n "$NIX_CC_WRAPPER_EXEC_HOOK"; then
-    source "$NIX_CC_WRAPPER_EXEC_HOOK"
-fi
-
-
-# Call the real `gcc'.  Filter out warnings from stderr about unused
-# `-B' flags, since they confuse some programs.  Deep bash magic to
-# apply grep to stderr (by swapping stdin/stderr twice).
-if test -z "$NIX_CC_NEEDS_GREP"; then
-    @gccProg@ ${extraBefore[@]} "${params[@]}" ${extraAfter[@]}
-else
-    (@gccProg@ ${extraBefore[@]} "${params[@]}" ${extraAfter[@]} 3>&2 2>&1 1>&3- \
-        | (grep -v 'file path prefix' || true); exit ${PIPESTATUS[0]}) 3>&2 2>&1 1>&3-
-    exit $?
-fi    
diff --git a/pkgs/build-support/gcc-wrapper-old/gnat-wrapper.sh b/pkgs/build-support/gcc-wrapper-old/gnat-wrapper.sh
deleted file mode 100644
index f6fa4b18400a1..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/gnat-wrapper.sh
+++ /dev/null
@@ -1,113 +0,0 @@
-#! @shell@ -e
-
-if test -n "$NIX_GNAT_WRAPPER_START_HOOK"; then
-    source "$NIX_GNAT_WRAPPER_START_HOOK"
-fi
-
-if test -z "$NIX_GNAT_WRAPPER_FLAGS_SET"; then
-    source @out@/nix-support/add-flags.sh
-fi
-
-source @out@/nix-support/utils.sh
-
-
-# Figure out if linker flags should be passed.  GCC prints annoying
-# warnings when they are not needed.
-dontLink=0
-getVersion=0
-nonFlagArgs=0
-
-for i in "$@"; do
-    if test "$i" = "-c"; then
-        dontLink=1
-    elif test "$i" = "-M"; then
-        dontLink=1
-    elif test "${i:0:1}" != "-"; then
-        nonFlagArgs=1
-    elif test "$i" = "-m32"; then
-        if test -e @out@/nix-support/dynamic-linker-m32; then
-            NIX_LDFLAGS="$NIX_LDFLAGS -dynamic-linker $(cat @out@/nix-support/dynamic-linker-m32)"
-        fi
-    fi
-done
-
-# If we pass a flag like -Wl, then gcc will call the linker unless it
-# can figure out that it has to do something else (e.g., because of a
-# "-c" flag).  So if no non-flag arguments are given, don't pass any
-# linker flags.  This catches cases like "gcc" (should just print
-# "gcc: no input files") and "gcc -v" (should print the version).
-if test "$nonFlagArgs" = "0"; then
-    dontLink=1
-fi
-
-
-# Optionally filter out paths not refering to the store.
-params=("$@")
-if test "$NIX_ENFORCE_PURITY" = "1" -a -n "$NIX_STORE"; then
-    rest=()
-    n=0
-    while test $n -lt ${#params[*]}; do
-        p=${params[n]}
-        p2=${params[$((n+1))]}
-        if test "${p:0:3}" = "-L/" && badPath "${p:2}"; then
-            skip $p
-        elif test "${p:0:3}" = "-I/" && badPath "${p:2}"; then
-            skip $p
-        elif test "${p:0:4}" = "-aI/" && badPath "${p:3}"; then
-            skip $p
-        elif test "${p:0:4}" = "-aO/" && badPath "${p:3}"; then
-            skip $p
-        else
-            rest=("${rest[@]}" "$p")
-        fi
-        n=$((n + 1))
-    done
-    params=("${rest[@]}")
-fi
-
-
-# Add the flags for the GNAT compiler proper.
-extraAfter=($NIX_GNATFLAGS_COMPILE)
-extraBefore=()
-
-if [ "`basename $0`x" = "gnatmakex" ]; then
-  extraBefore=("--GNATBIND=@out@/bin/gnatbind --GNATLINK=@out@/bin/gnatlink ")
-fi
-
-# Add the flags that should be passed to the linker (and prevent
-# `ld-wrapper' from adding NIX_LDFLAGS again).
-#for i in $NIX_LDFLAGS_BEFORE; do
-#    extraBefore=(${extraBefore[@]} "-largs $i")
-#done
-
-# Optionally print debug info.
-if test "$NIX_DEBUG" = "1"; then
-  echo "original flags to @gnatProg@:" >&2
-  for i in "${params[@]}"; do
-      echo "  $i" >&2
-  done
-  echo "extraBefore flags to @gnatProg@:" >&2
-  for i in ${extraBefore[@]}; do
-      echo "  $i" >&2
-  done
-  echo "extraAfter flags to @gnatProg@:" >&2
-  for i in ${extraAfter[@]}; do
-      echo "  $i" >&2
-  done
-fi
-
-if test -n "$NIX_GNAT_WRAPPER_EXEC_HOOK"; then
-    source "$NIX_GNAT_WRAPPER_EXEC_HOOK"
-fi
-
-
-# Call the real `gcc'.  Filter out warnings from stderr about unused
-# `-B' flags, since they confuse some programs.  Deep bash magic to
-# apply grep to stderr (by swapping stdin/stderr twice).
-if test -z "$NIX_GNAT_NEEDS_GREP"; then
-    @gnatProg@ ${extraBefore[@]} "${params[@]}" ${extraAfter[@]}
-else
-    (@gnatProg@ ${extraBefore[@]} "${params[@]}" ${extraAfter[@]} 3>&2 2>&1 1>&3- \
-        | (grep -v 'file path prefix' || true); exit ${PIPESTATUS[0]}) 3>&2 2>&1 1>&3-
-    exit $?
-fi
diff --git a/pkgs/build-support/gcc-wrapper-old/gnatlink-wrapper.sh b/pkgs/build-support/gcc-wrapper-old/gnatlink-wrapper.sh
deleted file mode 100644
index 25907108b4db1..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/gnatlink-wrapper.sh
+++ /dev/null
@@ -1,43 +0,0 @@
-#! @shell@ -e
-
-# Add the flags for the GNAT compiler proper.
-extraAfter="--GCC=@out@/bin/gcc"
-extraBefore=()
-
-# Add the flags that should be passed to the linker (and prevent
-# `ld-wrapper' from adding NIX_LDFLAGS again).
-#for i in $NIX_LDFLAGS_BEFORE; do
-#    extraBefore=(${extraBefore[@]} "-largs $i")
-#done
-
-# Optionally print debug info.
-if test "$NIX_DEBUG" = "1"; then
-  echo "original flags to @gnatlinkProg@:" >&2
-  for i in "$@"; do
-      echo "  $i" >&2
-  done
-  echo "extraBefore flags to @gnatlinkProg@:" >&2
-  for i in ${extraBefore[@]}; do
-      echo "  $i" >&2
-  done
-  echo "extraAfter flags to @gnatlinkProg@:" >&2
-  for i in ${extraAfter[@]}; do
-      echo "  $i" >&2
-  done
-fi
-
-if test -n "$NIX_GNAT_WRAPPER_EXEC_HOOK"; then
-    source "$NIX_GNAT_WRAPPER_EXEC_HOOK"
-fi
-
-
-# Call the real `gcc'.  Filter out warnings from stderr about unused
-# `-B' flags, since they confuse some programs.  Deep bash magic to
-# apply grep to stderr (by swapping stdin/stderr twice).
-if test -z "$NIX_GNAT_NEEDS_GREP"; then
-    @gnatlinkProg@ ${extraBefore[@]} "$@" ${extraAfter[@]}
-else
-    (@gnatlinkProg@ ${extraBefore[@]} "$@" ${extraAfter[@]} 3>&2 2>&1 1>&3- \
-        | (grep -v 'file path prefix' || true); exit ${PIPESTATUS[0]}) 3>&2 2>&1 1>&3-
-    exit $?
-fi
diff --git a/pkgs/build-support/gcc-wrapper-old/ld-solaris-wrapper.sh b/pkgs/build-support/gcc-wrapper-old/ld-solaris-wrapper.sh
deleted file mode 100755
index 263ea5408e9a3..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/ld-solaris-wrapper.sh
+++ /dev/null
@@ -1,40 +0,0 @@
-#!@shell@
-
-set -e
-set -u
-
-# I've also tried adding -z direct and -z lazyload, but it gave too many problems with C++ exceptions :'(
-# Also made sure libgcc would not be lazy-loaded, as suggested here: https://www.illumos.org/issues/2534#note-3
-#   but still no success.
-cmd="@ld@ -z ignore"
-
-args=("$@");
-
-# This loop makes sure all -L arguments are before -l arguments, or ld may complain it cannot find a library.
-# GNU binutils does not have this problem:
-#   http://stackoverflow.com/questions/5817269/does-the-order-of-l-and-l-options-in-the-gnu-linker-matter
-i=0;
-while [[ $i -lt $# ]]; do
-    case "${args[$i]}" in
-        -L)  cmd="$cmd ${args[$i]} ${args[($i+1)]}"; i=($i+1); ;;
-        -L*) cmd="$cmd ${args[$i]}" ;;
-        *)   ;;
-    esac
-    i=($i+1);
-done
-
-i=0;
-while [[ $i -lt $# ]]; do
-    case "${args[$i]}" in
-        -L)  i=($i+1); ;;
-        -L*) ;;
-        *)   cmd="$cmd ${args[$i]}" ;;
-    esac
-    i=($i+1);
-done
-
-# Trace:
-set -x
-exec $cmd
-
-exit 0
diff --git a/pkgs/build-support/gcc-wrapper-old/ld-wrapper.sh b/pkgs/build-support/gcc-wrapper-old/ld-wrapper.sh
deleted file mode 100644
index db50d25cb3b99..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/ld-wrapper.sh
+++ /dev/null
@@ -1,166 +0,0 @@
-#! @shell@ -e
-
-if test -n "$NIX_LD_WRAPPER_START_HOOK"; then
-    source "$NIX_LD_WRAPPER_START_HOOK"
-fi
-
-if test -z "$NIX_CC_WRAPPER_FLAGS_SET"; then
-    source @out@/nix-support/add-flags.sh
-fi
-
-source @out@/nix-support/utils.sh
-
-
-# Optionally filter out paths not refering to the store.
-params=("$@")
-if test "$NIX_ENFORCE_PURITY" = "1" -a -n "$NIX_STORE" \
-        -a \( -z "$NIX_IGNORE_LD_THROUGH_GCC" -o -z "$NIX_LDFLAGS_SET" \); then
-    rest=()
-    n=0
-    while test $n -lt ${#params[*]}; do
-        p=${params[n]}
-        p2=${params[$((n+1))]}
-        if test "${p:0:3}" = "-L/" && badPath "${p:2}"; then
-            skip $p
-        elif test "$p" = "-L" && badPath "$p2"; then
-            n=$((n + 1)); skip $p2
-        elif test "$p" = "-rpath" && badPath "$p2"; then
-            n=$((n + 1)); skip $p2
-        elif test "$p" = "-dynamic-linker" && badPath "$p2"; then
-            n=$((n + 1)); skip $p2
-        elif test "${p:0:1}" = "/" && badPath "$p"; then
-            # We cannot skip this; barf.
-            echo "impure path \`$p' used in link" >&2
-            exit 1
-        elif test "${p:0:9}" = "--sysroot"; then
-            # Our ld is not built with sysroot support (Can we fix that?)
-            :
-        else
-            rest=("${rest[@]}" "$p")
-        fi
-        n=$((n + 1))
-    done
-    params=("${rest[@]}")
-fi
-
-
-extra=()
-extraBefore=()
-
-if test -z "$NIX_LDFLAGS_SET"; then
-    extra+=($NIX_LDFLAGS)
-    extraBefore+=($NIX_LDFLAGS_BEFORE)
-fi
-
-extra+=($NIX_LDFLAGS_AFTER)
-
-
-# Add all used dynamic libraries to the rpath.
-if test "$NIX_DONT_SET_RPATH" != "1"; then
-
-    libPath=""
-    addToLibPath() {
-        local path="$1"
-        if test "${path:0:1}" != "/"; then return 0; fi
-        case "$path" in
-            *..*|*./*|*/.*|*//*)
-                local path2
-                if path2=$(readlink -f "$path"); then
-                    path="$path2"
-                fi
-                ;;
-        esac
-        case $libPath in
-            *\ $path\ *) return 0 ;;
-        esac
-        libPath="$libPath $path "
-    }
-    
-    addToRPath() {
-        # If the path is not in the store, don't add it to the rpath.
-        # This typically happens for libraries in /tmp that are later
-        # copied to $out/lib.  If not, we're screwed.
-        if test "${1:0:${#NIX_STORE}}" != "$NIX_STORE"; then return 0; fi
-        case $rpath in
-            *\ $1\ *) return 0 ;;
-        esac
-        rpath="$rpath $1 "
-    }
-
-    libs=""
-    addToLibs() {
-        libs="$libs $1"
-    }
-
-    rpath=""
-
-    # First, find all -L... switches.
-    allParams=("${params[@]}" ${extra[@]})
-    n=0
-    while test $n -lt ${#allParams[*]}; do
-        p=${allParams[n]}
-        p2=${allParams[$((n+1))]}
-        if test "${p:0:3}" = "-L/"; then
-            addToLibPath ${p:2}
-        elif test "$p" = "-L"; then
-            addToLibPath ${p2}
-            n=$((n + 1))
-        elif test "$p" = "-l"; then
-            addToLibs ${p2}
-            n=$((n + 1))
-        elif test "${p:0:2}" = "-l"; then
-            addToLibs ${p:2}
-        elif test "$p" = "-dynamic-linker"; then
-            # Ignore the dynamic linker argument, or it 
-            # will get into the next 'elif'. We don't want
-            # the dynamic linker path rpath to go always first.
-            n=$((n + 1))
-        elif [[ "$p" =~ ^[^-].*\.so($|\.) ]]; then
-            # This is a direct reference to a shared library, so add
-            # its directory to the rpath.
-            path="$(dirname "$p")";
-            addToRPath "${path}"
-        fi
-        n=$((n + 1))
-    done
-
-    # Second, for each directory in the library search path (-L...),
-    # see if it contains a dynamic library used by a -l... flag.  If
-    # so, add the directory to the rpath.
-    # It's important to add the rpath in the order of -L..., so
-    # the link time chosen objects will be those of runtime linking.
-    
-    for i in $libPath; do
-        for j in $libs; do
-            if test -f "$i/lib$j.so"; then
-                addToRPath $i
-                break
-            fi
-        done
-    done
-    
-
-    # Finally, add `-rpath' switches.
-    for i in $rpath; do
-        extra=(${extra[@]} -rpath $i)
-    done
-fi
-
-
-# Optionally print debug info.
-if test "$NIX_DEBUG" = "1"; then
-  echo "original flags to @ld@:" >&2
-  for i in "${params[@]}"; do
-      echo "  $i" >&2
-  done
-  echo "extra flags to @ld@:" >&2
-  for i in ${extra[@]}; do
-      echo "  $i" >&2
-  done
-fi
-
-if test -n "$NIX_LD_WRAPPER_EXEC_HOOK"; then
-    source "$NIX_LD_WRAPPER_EXEC_HOOK"
-fi
-
-exec @ld@ ${extraBefore[@]} "${params[@]}" ${extra[@]}
diff --git a/pkgs/build-support/gcc-wrapper-old/setup-hook.sh b/pkgs/build-support/gcc-wrapper-old/setup-hook.sh
deleted file mode 100644
index ad3ffeffbbbcb..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/setup-hook.sh
+++ /dev/null
@@ -1,33 +0,0 @@
-gccWrapperOld_addCVars () {
-    if test -d $1/include; then
-        export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE -isystem $1/include"
-    fi
-
-    if test -d $1/lib64; then
-        export NIX_LDFLAGS="$NIX_LDFLAGS -L$1/lib64"
-    fi
-
-    if test -d $1/lib; then
-        export NIX_LDFLAGS="$NIX_LDFLAGS -L$1/lib"
-    fi
-}
-
-envBuildBuildHooks+=(gccWrapperOld_addCVars)
-
-# Note: these come *after* $out in the PATH (see setup.sh).
-
-if test -n "@gcc@"; then
-    addToSearchPath PATH @gcc@/bin
-fi
-
-if test -n "@binutils@"; then
-    addToSearchPath PATH @binutils@/bin
-fi
-
-if test -n "@libc@"; then
-    addToSearchPath PATH @libc_bin@/bin
-fi
-
-if test -n "@coreutils@"; then
-    addToSearchPath PATH @coreutils@/bin
-fi
diff --git a/pkgs/build-support/gcc-wrapper-old/utils.sh b/pkgs/build-support/gcc-wrapper-old/utils.sh
deleted file mode 100644
index fa19f91bf5d28..0000000000000
--- a/pkgs/build-support/gcc-wrapper-old/utils.sh
+++ /dev/null
@@ -1,26 +0,0 @@
-skip () {
-    if test "$NIX_DEBUG" = "1"; then
-        echo "skipping impure path $1" >&2
-    fi
-}
-
-
-# Checks whether a path is impure.  E.g., `/lib/foo.so' is impure, but
-# `/nix/store/.../lib/foo.so' isn't.
-badPath() {
-    local p=$1
-    
-    # Relative paths are okay (since they're presumably relative to
-    # the temporary build directory).
-    if test "${p:0:1}" != "/"; then return 1; fi
-    
-    @extraPathTests@
-
-    # Otherwise, the path should refer to the store or some temporary
-    # directory (including the build directory).
-    test \
-        "$p" != "/dev/null" -a \
-        "${p:0:${#NIX_STORE}}" != "$NIX_STORE" -a \
-        "${p:0:4}" != "/tmp" -a \
-        "${p:0:${#NIX_BUILD_TOP}}" != "$NIX_BUILD_TOP"
-}
diff --git a/pkgs/development/compilers/gcc/4.5/default.nix b/pkgs/development/compilers/gcc/4.5/default.nix
deleted file mode 100644
index c63867a1d2db0..0000000000000
--- a/pkgs/development/compilers/gcc/4.5/default.nix
+++ /dev/null
@@ -1,472 +0,0 @@
-{ stdenv, targetPackages, fetchurl, noSysDirs
-, langC ? true, langCC ? true, langFortran ? false
-, langJava ? false
-, langAda ? false
-, langVhdl ? false
-, profiledCompiler ? false
-, staticCompiler ? false
-, enableShared ? true
-, texinfo ? null
-, perl ? null # optional, for texi2pod (then pod2man); required for Java
-, gmp, mpfr, libmpc, gettext, which
-, libelf                      # optional, for link-time optimizations (LTO)
-, ppl ? null, cloogppl ? null # optional, for the Graphite optimization framework
-, zlib ? null, boehmgc ? null
-, zip ? null, unzip ? null, pkgconfig ? null, gtk2 ? null, libart_lgpl ? null
-, libX11 ? null, libXt ? null, libSM ? null, libICE ? null, libXtst ? null
-, libXrender ? null, xproto ? null, renderproto ? null, xextproto ? null
-, libXrandr ? null, libXi ? null, inputproto ? null, randrproto ? null
-, gnatboot ? null
-, enableMultilib ? false
-, name ? "gcc"
-, libcCross ? null
-, crossStageStatic ? false
-, gnat ? null
-, libpthread ? null, libpthreadCross ? null  # required for GNU/Hurd
-, stripped ? true
-, buildPlatform, hostPlatform, targetPlatform
-, buildPackages
-}:
-
-assert langJava     -> zip != null && unzip != null
-                       && zlib != null && boehmgc != null
-                       && perl != null;  # for `--enable-java-home'
-assert langAda      -> gnatboot != null;
-assert langVhdl     -> gnat != null;
-
-# LTO needs libelf and zlib.
-assert libelf != null -> zlib != null;
-
-with stdenv.lib;
-with builtins;
-
-let version = "4.5.4";
-    javaEcj = fetchurl {
-      # The `$(top_srcdir)/ecj.jar' file is automatically picked up at
-      # `configure' time.
-
-      # XXX: Eventually we might want to take it from upstream.
-      url = "ftp://sourceware.org/pub/java/ecj-4.3.jar";
-      sha256 = "0jz7hvc0s6iydmhgh5h2m15yza7p2rlss2vkif30vm9y77m97qcx";
-    };
-
-    # Antlr (optional) allows the Java `gjdoc' tool to be built.  We want a
-    # binary distribution here to allow the whole chain to be bootstrapped.
-    javaAntlr = fetchurl {
-      url = http://www.antlr.org/download/antlr-3.1.3.jar;
-      sha256 = "1f41j0y4kjydl71lqlvr73yagrs2jsg1fjymzjz66mjy7al5lh09";
-    };
-
-    xlibs = [
-      libX11 libXt libSM libICE libXtst libXrender libXrandr libXi
-      xproto renderproto xextproto inputproto randrproto
-    ];
-
-    javaAwtGtk = langJava && gtk2 != null;
-
-    /* Platform flags */
-    platformFlags = let
-        gccArch = targetPlatform.platform.gcc.arch or null;
-        gccCpu = targetPlatform.platform.gcc.cpu or null;
-        gccAbi = targetPlatform.platform.gcc.abi or null;
-        gccFpu = targetPlatform.platform.gcc.fpu or null;
-        gccFloat = targetPlatform.platform.gcc.float or null;
-        gccMode = targetPlatform.platform.gcc.mode or null;
-      in
-        optional (gccArch != null) "--with-arch=${gccArch}" ++
-        optional (gccCpu != null) "--with-cpu=${gccCpu}" ++
-        optional (gccAbi != null) "--with-abi=${gccAbi}" ++
-        optional (gccFpu != null) "--with-fpu=${gccFpu}" ++
-        optional (gccFloat != null) "--with-float=${gccFloat}" ++
-        optional (gccMode != null) "--with-mode=${gccMode}";
-
-    /* Cross-gcc settings */
-    crossMingw = (targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt");
-
-    crossConfigureFlags =
-      # Ensure that -print-prog-name is able to find the correct programs.
-      [ "--with-as=${targetPackages.stdenv.cc.bintools}/bin/${targetPlatform.config}-as"
-        "--with-ld=${targetPackages.stdenv.cc.bintools}/bin/${targetPlatform.config}-ld" ] ++
-      (if crossMingw && crossStageStatic then [
-        "--with-headers=${libcCross}/include"
-        "--with-gcc"
-        "--with-gnu-as"
-        "--with-gnu-ld"
-        "--with-gnu-ld"
-        "--disable-shared"
-        "--disable-nls"
-        "--disable-debug"
-        "--enable-sjlj-exceptions"
-        "--enable-threads=win32"
-        "--disable-win32-registry"
-      ] else if crossStageStatic then [
-        "--disable-libssp"
-        "--disable-nls"
-        "--without-headers"
-        "--disable-threads"
-        "--disable-libmudflap"
-        "--disable-libgomp"
-        "--disable-shared"
-        "--disable-decimal-float" # libdecnumber requires libc
-      ] else [
-        "--with-headers=${libcCross}/include"
-        "--enable-__cxa_atexit"
-        "--enable-long-long"
-      ] ++
-        (if crossMingw then [
-          "--enable-threads=win32"
-          "--enable-sjlj-exceptions"
-          "--enable-hash-synchronization"
-          "--enable-version-specific-runtime-libs"
-          "--enable-libssp"
-          "--disable-nls"
-          "--with-dwarf2"
-        ] else [
-          "--enable-threads=posix"
-          "--enable-nls"
-          "--disable-decimal-float" # No final libdecnumber (it may work only in 386)
-        ]));
-    stageNameAddon = if crossStageStatic then "-stage-static" else
-      "-stage-final";
-    crossNameAddon = if targetPlatform != hostPlatform then "-${targetPlatform.config}" + stageNameAddon else "";
-
-in
-
-# We need all these X libraries when building AWT with GTK+.
-assert gtk2 != null -> (filter (x: x == null) xlibs) == [];
-
-stdenv.mkDerivation ({
-  name = "${name}-${version}" + crossNameAddon;
-
-  builder = ../builder.sh;
-
-  src = (import ./sources.nix) {
-    inherit fetchurl optional version;
-    inherit langC langCC langFortran langJava langAda;
-  };
-
-  hardeningDisable = [ "format" ] ++ optional (name != "gnat") "all";
-
-  outputs = [ "out" "man" "info" ]
-    ++ optional (!(hostPlatform.is64bit && langAda)) "lib";
-
-  setOutputFlags = false;
-  NIX_NO_SELF_RPATH = true;
-
-  libc_dev = stdenv.cc.libc_dev;
-
-  patches =
-    [ ]
-    ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
-    ++ optional noSysDirs ./no-sys-dirs.patch
-    # The GNAT Makefiles did not pay attention to CFLAGS_FOR_TARGET for its
-    # target libraries and tools.
-    ++ optional langAda ../gnat-cflags.patch
-    ++ optional langVhdl ./ghdl-ortho-cflags.patch
-    ++ [ ../struct-ucontext-4.5.patch ] # glibc-2.26
-    ;
-
-  postPatch =
-    if (stdenv.system == "i586-pc-gnu"
-        || (libcCross != null                  # e.g., building `gcc.crossDrv'
-            && libcCross ? crossConfig
-            && libcCross.crossConfig == "i586-pc-gnu")
-        || (targetPlatform != hostPlatform && targetPlatform.config == "i586-pc-gnu"
-            && libcCross != null))
-    then
-      # On GNU/Hurd glibc refers to Hurd & Mach headers and libpthread is not
-      # in glibc, so add the right `-I' flags to the default spec string.
-      assert libcCross != null -> libpthreadCross != null;
-      let
-        libc = if libcCross != null then libcCross else stdenv.glibc;
-        gnu_h = "gcc/config/gnu.h";
-        i386_gnu_h = "gcc/config/i386/gnu.h";
-        extraCPPDeps =
-             libc.propagatedBuildInputs
-          ++ stdenv.lib.optional (libpthreadCross != null) libpthreadCross
-          ++ stdenv.lib.optional (libpthread != null) libpthread;
-        extraCPPSpec =
-          concatStrings (intersperse " "
-                          (map (x: "-I${x.dev or x}/include") extraCPPDeps));
-        extraLibSpec =
-          if libpthreadCross != null
-          then "-L${libpthreadCross}/lib ${libpthreadCross.TARGET_LDFLAGS}"
-          else "-L${libpthread}/lib";
-      in
-        '' echo "augmenting \`CPP_SPEC' in \`${i386_gnu_h}' with \`${extraCPPSpec}'..."
-           sed -i "${i386_gnu_h}" \
-               -es'|CPP_SPEC *"\(.*\)$|CPP_SPEC "${extraCPPSpec} \1|g'
-
-           echo "augmenting \`LIB_SPEC' in \`${gnu_h}' with \`${extraLibSpec}'..."
-           sed -i "${gnu_h}" \
-               -es'|LIB_SPEC *"\(.*\)$|LIB_SPEC "${extraLibSpec} \1|g'
-
-           echo "setting \`NATIVE_SYSTEM_HEADER_DIR' and \`STANDARD_INCLUDE_DIR' to \`${libc.dev}/include'..."
-           sed -i "${gnu_h}" \
-               -es'|#define STANDARD_INCLUDE_DIR.*$|#define STANDARD_INCLUDE_DIR "${libc.dev}/include"|g'
-           sed -i gcc/config/t-gnu \
-               -es'|NATIVE_SYSTEM_HEADER_DIR.*$|NATIVE_SYSTEM_HEADER_DIR = ${libc.dev}/include|g'
-        ''
-    else if targetPlatform != hostPlatform || stdenv.cc.libc != null then
-      # On NixOS, use the right path to the dynamic linker instead of
-      # `/lib/ld*.so'.
-      let
-        libc = if libcCross != null then libcCross else stdenv.cc.libc;
-      in
-        '' echo "fixing the \`GLIBC_DYNAMIC_LINKER' and \`UCLIBC_DYNAMIC_LINKER' macros..."
-           for header in "gcc/config/"*-gnu.h "gcc/config/"*"/"*.h
-           do
-             grep -q LIBC_DYNAMIC_LINKER "$header" || continue
-             echo "  fixing \`$header'..."
-             sed -i "$header" \
-                 -e 's|define[[:blank:]]*\([UCG]\+\)LIBC_DYNAMIC_LINKER\([0-9]*\)[[:blank:]]"\([^\"]\+\)"$|define \1LIBC_DYNAMIC_LINKER\2 "${libc.out}\3"|g'
-           done
-        ''
-    else null;
-
-  # TODO(@Ericson2314): Make passthru instead. Weird to avoid mass rebuild,
-  crossStageStatic = targetPlatform == hostPlatform || crossStageStatic;
-  inherit noSysDirs profiledCompiler staticCompiler langJava
-    libcCross crossMingw;
-
-  depsBuildBuild = [ buildPackages.stdenv.cc ];
-  nativeBuildInputs = [ texinfo which gettext ]
-    ++ optional (perl != null) perl;
-
-  # For building runtime libs
-  depsBuildTarget =
-    if hostPlatform == buildPlatform then [
-      targetPackages.stdenv.cc.bintools # newly-built gcc will be used
-    ] else assert targetPlatform == hostPlatform; [ # build != host == target
-      stdenv.cc
-    ];
-
-  buildInputs = [
-    gmp mpfr libmpc libelf
-    targetPackages.stdenv.cc.bintools # For linking code at run-time
-  ] ++ (optional (ppl != null) ppl)
-    ++ (optional (cloogppl != null) cloogppl)
-    ++ (optional (zlib != null) zlib)
-    ++ (optional langJava boehmgc)
-    ++ (optionals langJava [zip unzip])
-    ++ (optionals javaAwtGtk ([gtk2 pkgconfig libart_lgpl] ++ xlibs))
-    ++ (optionals (targetPlatform != hostPlatform) [targetPackages.stdenv.cc.bintools])
-    ++ (optionals langAda [gnatboot])
-    ++ (optionals langVhdl [gnat])
-    ;
-
-  # TODO(@Ericson2314): Always pass "--target" and always prefix.
-  configurePlatforms =
-    # TODO(@Ericson2314): Figure out what's going wrong with Arm
-    if buildPlatform == hostPlatform && hostPlatform == targetPlatform && targetPlatform.isArm
-    then []
-    else [ "build" "host" ] ++ stdenv.lib.optional (targetPlatform != hostPlatform) "target";
-
-  configureFlags =
-    # Basic dependencies
-    [
-      "--with-gmp=${gmp.dev}"
-      "--with-mpfr=${mpfr.dev}"
-      "--with-mpc=${libmpc}"
-    ] ++
-    optional (libelf != null) "--with-libelf=${libelf}" ++
-    optional (!(crossMingw && crossStageStatic))
-      "--with-native-system-header-dir=${getDev stdenv.cc.libc}/include" ++
-
-    # Basic configuration
-    [
-      "--disable-libstdcxx-pch"
-      "--without-included-gettext"
-      "--with-system-zlib"
-      "--enable-languages=${
-        concatStrings (intersperse ","
-          (  optional langC        "c"
-          ++ optional langCC       "c++"
-          ++ optional langFortran  "fortran"
-          ++ optional langJava     "java"
-          ++ optional langAda      "ada"
-          ++ optional langVhdl     "vhdl"
-          )
-        )
-      }"
-    ] ++
-    optional (!enableMultilib) "--disable-multilib" ++
-    optional (!enableShared) "--disable-shared" ++
-
-    # Optional features
-    optional (cloogppl != null) "--with-cloog=${cloogppl}" ++
-    optional (ppl != null) "--with-ppl=${ppl}" ++
-
-    # Java options
-    optionals langJava [
-      "--with-ecj-jar=${javaEcj}"
-
-      # Follow Sun's layout for the convenience of IcedTea/OpenJDK.  See
-      # <http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2010-April/008888.html>.
-      "--enable-java-home"
-      "--with-java-home=\${prefix}/lib/jvm/jre"
-    ] ++
-    optional javaAwtGtk "--enable-java-awt=gtk" ++
-    optional (langJava && javaAntlr != null) "--with-antlr-jar=${javaAntlr}" ++
-
-    # Ada
-    optional langAda "--enable-libada" ++
-
-    platformFlags ++
-    optional (targetPlatform != hostPlatform) crossConfigureFlags ++
-
-    # Platform-specific flags
-    optional (targetPlatform == hostPlatform && targetPlatform.isi686) "--with-arch=i686" ++
-    # Trick that should be taken out once we have a mipsel-linux not loongson2f
-    optional (targetPlatform == hostPlatform && stdenv.system == "mipsel-linux") "--with-arch=loongson2f"
-  ;
-
-  targetConfig = if targetPlatform != hostPlatform then targetPlatform.config else null;
-
-  /* For cross-built gcc (build != host == target) */
-  crossAttrs = {
-    dontStrip = true;
-  };
-
-  # Setting $CPATH and $LIBRARY_PATH to make sure both `gcc' and `xgcc' find the
-  # library headers and binaries, regarless of the language being compiled.
-  #
-  # Note: When building the Java AWT GTK+ peer, the build system doesn't honor
-  # `--with-gmp' et al., e.g., when building
-  # `libjava/classpath/native/jni/java-math/gnu_java_math_GMP.c', so we just add
-  # them to $CPATH and $LIBRARY_PATH in this case.
-  #
-  # Likewise, the LTO code doesn't find zlib.
-  #
-  # Cross-compiling, we need gcc not to read ./specs in order to build the g++
-  # compiler (after the specs for the cross-gcc are created). Having
-  # LIBRARY_PATH= makes gcc read the specs from ., and the build breaks.
-
-  CPATH = optionals (targetPlatform == hostPlatform) (makeSearchPathOutput "dev" "include" ([]
-    ++ optional (zlib != null) zlib
-    ++ optional langJava boehmgc
-    ++ optionals javaAwtGtk xlibs
-    ++ optionals javaAwtGtk [ gmp mpfr ]
-    ++ optional (libpthread != null) libpthread
-    ++ optional (libpthreadCross != null) libpthreadCross
-
-    # On GNU/Hurd glibc refers to Mach & Hurd
-    # headers.
-    ++ optionals (libcCross != null && libcCross ? propagatedBuildInputs)
-                 libcCross.propagatedBuildInputs
-  ));
-
-  LIBRARY_PATH = optionals (targetPlatform == hostPlatform) (makeLibraryPath ([]
-    ++ optional (zlib != null) zlib
-    ++ optional langJava boehmgc
-    ++ optionals javaAwtGtk xlibs
-    ++ optionals javaAwtGtk [ gmp mpfr ]
-    ++ optional (libpthread != null) libpthread)
-  );
-
-  EXTRA_TARGET_FLAGS = optionals
-    (targetPlatform != hostPlatform && libcCross != null)
-    ([
-      "-idirafter ${libcCross.dev}/include"
-    ] ++ optionals (! crossStageStatic) [
-      "-B${libcCross.out}/lib"
-    ]);
-
-  EXTRA_TARGET_LDFLAGS = optionals
-    (targetPlatform != hostPlatform && libcCross != null)
-    ([
-      "-Wl,-L${libcCross.out}/lib"
-    ] ++ (if crossStageStatic then [
-        "-B${libcCross.out}/lib"
-      ] else [
-        "-Wl,-rpath,${libcCross.out}/lib"
-        "-Wl,-rpath-link,${libcCross.out}/lib"
-    ]) ++ optionals (libpthreadCross != null) [
-      "-L${libpthreadCross}/lib"
-      "-Wl,${libpthreadCross.TARGET_LDFLAGS}"
-    ]);
-
-  passthru = {
-    inherit langC langCC langAda langFortran langVhdl enableMultilib version;
-    isGNU = true;
-    hardeningUnsupportedFlags = [ "stackprotector" ];
-  };
-
-  enableParallelBuilding = !langAda;
-
-  meta = {
-    homepage = http://gcc.gnu.org/;
-    license = stdenv.lib.licenses.gpl3Plus;  # runtime support libraries are typically LGPLv3+
-    description = "GNU Compiler Collection, version ${version}"
-      + (if stripped then "" else " (with debugging info)");
-
-    longDescription = ''
-      The GNU Compiler Collection includes compiler front ends for C, C++,
-      Objective-C, Fortran, OpenMP for C/C++/Fortran, Java, and Ada, as well
-      as libraries for these languages (libstdc++, libgcj, libgomp,...).
-
-      GCC development is a part of the GNU Project, aiming to improve the
-      compiler used in the GNU system including the GNU/Linux variant.
-    '';
-
-    maintainers = [
-      stdenv.lib.maintainers.viric
-    ];
-
-    # Volunteers needed for the {Cyg,Dar}win ports of *PPL.
-    # gnatboot is not available out of linux platforms, so we disable the darwin build
-    # for the gnat (ada compiler).
-    platforms = stdenv.lib.platforms.linux ++ optionals (langAda == false) [ "i686-darwin" ];
-  };
-}
-
-// optionalAttrs (targetPlatform != hostPlatform || libcCross != null) {
-  # `builder.sh' sets $CPP, which leads configure to use "gcc -E" instead of,
-  # say, "i586-pc-gnu-gcc -E" when building `gcc.crossDrv'.
-  # FIXME: Fix `builder.sh' directly in the next stdenv-update.
-  postUnpack = "unset CPP";
-}
-
-// optionalAttrs (targetPlatform != hostPlatform && targetPlatform.libc == "msvcrt" && crossStageStatic) {
-  makeFlags = [ "all-gcc" "all-target-libgcc" ];
-  installTargets = "install-gcc install-target-libgcc";
-}
-
-# GCC 4.5.2 doesn't support the `install-strip' target, so let `stdenv' do
-# the stripping by default.
-// optionalAttrs (!stripped) { dontStrip = true; }
-
-// optionalAttrs langVhdl rec {
-  name = "ghdl-0.29";
-
-  ghdlSrc = fetchurl {
-    url = "http://ghdl.free.fr/ghdl-0.29.tar.bz2";
-    sha256 = "15mlinr1lwljwll9ampzcfcrk9bk0qpdks1kxlvb70xf9zhh2jva";
-  };
-
-  # Ghdl has some timestamps checks, storing file timestamps in '.cf' files.
-  # As we will change the timestamps to 1970-01-01 00:00:01, we also set the
-  # content of that .cf to that value. This way ghdl does not complain on
-  # the installed object files from the basic libraries (ieee, ...)
-  postInstallGhdl = ''
-    pushd $out
-    find . -name "*.cf" -exec \
-        sed 's/[0-9]*\.000" /19700101000001.000" /g' -i {} \;
-    popd
-  '';
-
-  postUnpack = ''
-    tar xvf ${ghdlSrc}
-    mv ghdl-*/vhdl gcc*/gcc
-    rm -Rf ghdl-*
-  '';
-
-  meta = {
-    homepage = http://ghdl.free.fr/;
-    license = stdenv.lib.licenses.gpl2Plus;
-    description = "Complete VHDL simulator, using the GCC technology (gcc ${version})";
-    maintainers = with stdenv.lib.maintainers; [viric];
-    platforms = with stdenv.lib.platforms; linux;
-  };
-
-})
diff --git a/pkgs/development/compilers/gcc/4.5/ghdl-ortho-cflags.patch b/pkgs/development/compilers/gcc/4.5/ghdl-ortho-cflags.patch
deleted file mode 100644
index 901534591c8f1..0000000000000
--- a/pkgs/development/compilers/gcc/4.5/ghdl-ortho-cflags.patch
+++ /dev/null
@@ -1,111 +0,0 @@
-diff --git a/gcc/vhdl/Make-lang.in b/gcc/vhdl/Make-lang.in
-index 8f481df..681ac59 100644
---- a/gcc/vhdl/Make-lang.in
-+++ b/gcc/vhdl/Make-lang.in
-@@ -96,7 +96,7 @@ AGCC_GCCOBJ_DIR=../
- AGCC_INC_FLAGS=-I$(AGCC_GCCOBJ_DIR)/gcc -I$(AGCC_GCCSRC_DIR)/include \
-  -I$(AGCC_GCCSRC_DIR)/gcc -I$(AGCC_GCCSRC_DIR)/gcc/config \
-  -I$(AGCC_GCCSRC_DIR)/libcpp/include
--AGCC_CFLAGS=-g -Wall -DIN_GCC $(AGCC_INC_FLAGS)
-+AGCC_CFLAGS=-g -Wall -DIN_GCC $(AGCC_INC_FLAGS) $(CFLAGS) $(INCLUDES)
- 
- AGCC_LOCAL_OBJS=ortho-lang.o
- 
-@@ -140,7 +140,7 @@ ghdl$(exeext): force
- 
- # Ghdl libraries.
- ghdllib: ghdl$(exeext) $(GCC_PASSES) force
--	$(MAKE_IN_VHDL) GRT_FLAGS="-O -g" ghdllib
-+	$(MAKE_IN_VHDL) GRT_FLAGS="-O -g $(CFLAGS)" ghdllib
- 
- # Build hooks:
- 
-diff --git a/gcc/vhdl/Makefile.in b/gcc/vhdl/Makefile.in
-index d754c6c..07abc4a 100644
---- a/gcc/vhdl/Makefile.in
-+++ b/gcc/vhdl/Makefile.in
-@@ -80,7 +80,8 @@ T_CPPFLAGS =
- X_ADAFLAGS =
- T_ADAFLAGS =
- 
--ADAC = $(CC)
-+# Never use the bootstrapped compiler, as it may not be built for ada
-+ADAC = gcc
- 
- ECHO = echo
- CHMOD = chmod
-diff --git a/gcc/vhdl/ortho-lang.c b/gcc/vhdl/ortho-lang.c
-index 84aeb92..8eddd42 100644
---- a/gcc/vhdl/ortho-lang.c
-+++ b/gcc/vhdl/ortho-lang.c
-@@ -16,6 +16,7 @@
- #include "options.h"
- #include "real.h"
--#include "tree-gimple.h"
-+#include "gimple.h"
-+#include "tree.h"
- #include "function.h"
- #include "cgraph.h"
- #include "target.h"
-@@ -680,38 +681,10 @@ type_for_mode (enum machine_mode mode, int unsignedp)
- 
- const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
- 
--/* Tree code classes.  */
--
--#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
--
--const enum tree_code_class tree_code_type[] = {
--#include "tree.def"
--  'x'
--};
--#undef DEFTREECODE
--
--/* Table indexed by tree code giving number of expression
--   operands beyond the fixed part of the node structure.
--   Not used for types or decls.  */
--
--#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
--
--const unsigned char tree_code_length[] = {
--#include "tree.def"
--  0
--};
--#undef DEFTREECODE
--
--#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) NAME,
--const char * const tree_code_name[] = {
--#include "tree.def"
--  "@@dummy"
--};
--#undef DEFTREECODE
- 
- union lang_tree_node 
-   GTY((desc ("0"),
--       chain_next ("(union lang_tree_node *) GENERIC_NEXT (&%h.generic)")))
-+       chain_next ("(union lang_tree_node *) TREE_CHAIN (&%h.generic)")))
- {
-   union tree_node GTY ((tag ("0"))) generic;
- };
-@@ -1162,7 +1135,7 @@ new_access_type (tree dtype)
-       res = make_node (POINTER_TYPE);
-       TREE_TYPE (res) = NULL_TREE;
-       /* Seems necessary.  */
--      TYPE_MODE (res) = Pmode;
-+      SET_TYPE_MODE (res, Pmode);
-       layout_type (res);
-       return res;
-     }
-diff --git a/gcc/vhdl/Make-lang.in b/gcc/vhdl/Make-lang.in
-index e201f64..f36fb97 100644
---- a/gcc/vhdl/Make-lang.in
-+++ b/gcc/vhdl/Make-lang.in
-@@ -132,7 +132,7 @@ ghdl1$(exeext): $(AGCC_OBJS) $(AGCC_DEPS) force
- 	 -cargs $(CFLAGS) $(GHDL_ADAFLAGS)
- 	$(GNATMAKE) -o $@ -aI$(srcdir)/vhdl -aOvhdl ortho_gcc-main \
- 	 -bargs -E -cargs $(CFLAGS) $(GHDL_ADAFLAGS) \
--	 -largs $(AGCC_OBJS) $(LIBS) $(GMPLIBS)
-+	 -largs $(AGCC_OBJS) $(LIBS) $(GMPLIBS) $(CLOOGLIBS) $(PPLLIBS)
- 
- # The driver for ghdl.
- ghdl$(exeext): force
diff --git a/pkgs/development/compilers/gcc/4.5/no-sys-dirs.patch b/pkgs/development/compilers/gcc/4.5/no-sys-dirs.patch
deleted file mode 100644
index 8128fa87da5fd..0000000000000
--- a/pkgs/development/compilers/gcc/4.5/no-sys-dirs.patch
+++ /dev/null
@@ -1,54 +0,0 @@
-diff -ru gcc-4.3.1-orig/gcc/cppdefault.c gcc-4.3.1/gcc/cppdefault.c
---- gcc-4.3.1-orig/gcc/cppdefault.c	2007-07-26 10:37:01.000000000 +0200
-+++ gcc-4.3.1/gcc/cppdefault.c	2008-06-25 17:48:23.000000000 +0200
-@@ -41,6 +41,10 @@
- # undef CROSS_INCLUDE_DIR
- #endif
- 
-+#undef LOCAL_INCLUDE_DIR
-+#undef SYSTEM_INCLUDE_DIR
-+#undef STANDARD_INCLUDE_DIR
-+
- const struct default_include cpp_include_defaults[]
- #ifdef INCLUDE_DEFAULTS
- = INCLUDE_DEFAULTS;
-diff -ru gcc-4.3.1-orig/gcc/gcc.c gcc-4.3.1/gcc/gcc.c
---- gcc-4.3.1-orig/gcc/gcc.c	2008-03-02 23:55:19.000000000 +0100
-+++ gcc-4.3.1/gcc/gcc.c	2008-06-25 17:52:53.000000000 +0200
-@@ -1478,10 +1478,10 @@
- /* Default prefixes to attach to command names.  */
- 
- #ifndef STANDARD_STARTFILE_PREFIX_1
--#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
-+#define STANDARD_STARTFILE_PREFIX_1 ""
- #endif
- #ifndef STANDARD_STARTFILE_PREFIX_2
--#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
-+#define STANDARD_STARTFILE_PREFIX_2 ""
- #endif
- 
- #ifdef CROSS_DIRECTORY_STRUCTURE  /* Don't use these prefixes for a cross compiler.  */
---- gcc-4.3.1-orig/gcc/Makefile.in	2008-05-11 20:54:15.000000000 +0200
-+++ gcc-4.3.1/gcc/Makefile.in	2008-06-25 17:48:23.000000000 +0200
-@@ -378,7 +378,11 @@
- MD5_H	    = $(srcdir)/../include/md5.h
- 
- # Default native SYSTEM_HEADER_DIR, to be overridden by targets.
--NATIVE_SYSTEM_HEADER_DIR = /usr/include
-+# Nix: we override NATIVE_SYSTEM_HEADER_DIR in order to prevent
-+# `fixinc' from fixing header files in /usr/include.  However,
-+# NATIVE_SYSTEM_HEADER_DIR must point to an existing directory, so set
-+# it to some dummy directory.
-+NATIVE_SYSTEM_HEADER_DIR = $(NIX_FIXINC_DUMMY)
- # Default cross SYSTEM_HEADER_DIR, to be overridden by targets.
- CROSS_SYSTEM_HEADER_DIR = @CROSS_SYSTEM_HEADER_DIR@
- 
-@@ -3277,7 +3281,7 @@
-   -DGPLUSPLUS_INCLUDE_DIR=\"$(gcc_gxx_include_dir)\" \
-   -DGPLUSPLUS_TOOL_INCLUDE_DIR=\"$(gcc_gxx_include_dir)/$(target_noncanonical)\" \
-   -DGPLUSPLUS_BACKWARD_INCLUDE_DIR=\"$(gcc_gxx_include_dir)/backward\" \
--  -DLOCAL_INCLUDE_DIR=\"$(local_includedir)\" \
-+  -DLOCAL_INCLUDE_DIR=\"/no-such-dir\" \
-   -DCROSS_INCLUDE_DIR=\"$(CROSS_SYSTEM_HEADER_DIR)\" \
-   -DTOOL_INCLUDE_DIR=\"$(gcc_tooldir)/include\" \
-   -DPREFIX=\"$(prefix)/\" \
diff --git a/pkgs/development/compilers/gcc/4.5/sources.nix b/pkgs/development/compilers/gcc/4.5/sources.nix
deleted file mode 100644
index 71e1e483cacd8..0000000000000
--- a/pkgs/development/compilers/gcc/4.5/sources.nix
+++ /dev/null
@@ -1,26 +0,0 @@
-/* Automatically generated by `update-gcc.sh', do not edit.
-   For GCC 4.5.4.  */
-{ fetchurl, optional, version, langC, langCC, langFortran, langJava, langAda }:
-
-assert version == "4.5.4";
-optional /* langC */ true (fetchurl {
-  url = "mirror://gcc/releases/gcc-${version}/gcc-core-${version}.tar.bz2";
-  sha256 = "894d90f72cbfc8707e330fa2b1847c443fa97cf9b7f26e86be554709510e624a";
-}) ++
-optional langCC (fetchurl {
-  url = "mirror://gcc/releases/gcc-${version}/gcc-g++-${version}.tar.bz2";
-  sha256 = "f7e3bab5e22713fbce46c2acb35fb727748473a34a942ce00393d75e1b09b6b9";
-}) ++
-optional langFortran (fetchurl {
-  url = "mirror://gcc/releases/gcc-${version}/gcc-fortran-${version}.tar.bz2";
-  sha256 = "cf0803b4f5334a526dd8da1b2171d6724f50c17346b2d5c509b6abc973d2ef34";
-}) ++
-optional langJava (fetchurl {
-  url = "mirror://gcc/releases/gcc-${version}/gcc-java-${version}.tar.bz2";
-  sha256 = "c98398da6f8c4c7d1758e291089d99853fdd27112cd3f146b7a8c26e6d762a23";
-}) ++
-optional langAda (fetchurl {
-  url = "mirror://gcc/releases/gcc-${version}/gcc-ada-${version}.tar.bz2";
-  sha256 = "8abddae15be65572b4d639bd9818057019bb4a45da4decfc6451511c8d580c5e";
-}) ++
-[]
diff --git a/pkgs/development/compilers/gcc/4.8/default.nix b/pkgs/development/compilers/gcc/4.8/default.nix
index 36adfd075df29..0a6ea59e5ac43 100644
--- a/pkgs/development/compilers/gcc/4.8/default.nix
+++ b/pkgs/development/compilers/gcc/4.8/default.nix
@@ -3,8 +3,6 @@
 , langObjC ? targetPlatform.isDarwin
 , langObjCpp ? targetPlatform.isDarwin
 , langJava ? false
-, langAda ? false
-, langVhdl ? false
 , langGo ? false
 , profiledCompiler ? false
 , staticCompiler ? false
@@ -21,13 +19,11 @@
 , libXrender ? null, xproto ? null, renderproto ? null, xextproto ? null
 , libXrandr ? null, libXi ? null, inputproto ? null, randrproto ? null
 , x11Support ? langJava
-, gnatboot ? null
 , enableMultilib ? false
 , enablePlugin ? hostPlatform == buildPlatform # Whether to support user-supplied plug-ins
 , name ? "gcc"
 , libcCross ? null
 , crossStageStatic ? false
-, gnat ? null
 , libpthread ? null, libpthreadCross ? null  # required for GNU/Hurd
 , stripped ? true
 , gnused ? null
@@ -39,8 +35,6 @@
 assert langJava     -> zip != null && unzip != null
                        && zlib != null && boehmgc != null
                        && perl != null;  # for `--enable-java-home'
-assert langAda      -> gnatboot != null;
-assert langVhdl     -> gnat != null;
 
 # We enable the isl cloog backend.
 assert cloog != null -> isl != null;
@@ -68,9 +62,6 @@ let version = "4.8.5";
       ++ optional enableParallelBuilding ../parallel-bconfig.patch
       ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
       ++ optional noSysDirs ../no-sys-dirs.patch
-      # The GNAT Makefiles did not pay attention to CFLAGS_FOR_TARGET for its
-      # target libraries and tools.
-      ++ optional langAda ../gnat-cflags.patch
       ++ optional langFortran ../gfortran-driving.patch
       ++ optional hostPlatform.isDarwin ../gfortran-darwin-NXConstStr.patch
       ++ [(fetchpatch {
@@ -279,8 +270,6 @@ stdenv.mkDerivation ({
     ++ (optionals langJava [ boehmgc zip unzip ])
     ++ (optionals javaAwtGtk ([ gtk2 libart_lgpl ] ++ xlibs))
     ++ (optionals (targetPlatform != hostPlatform) [targetPackages.stdenv.cc.bintools])
-    ++ (optionals langAda [gnatboot])
-    ++ (optionals langVhdl [gnat])
 
     # The builder relies on GNU sed (for instance, Darwin's `sed' fails with
     # "-i may not be used with stdin"), and `stdenvNative' doesn't provide it.
@@ -330,8 +319,6 @@ stdenv.mkDerivation ({
           ++ optional langCC       "c++"
           ++ optional langFortran  "fortran"
           ++ optional langJava     "java"
-          ++ optional langAda      "ada"
-          ++ optional langVhdl     "vhdl"
           ++ optional langGo       "go"
           ++ optional langObjC     "objc"
           ++ optional langObjCpp   "obj-c++"
@@ -369,9 +356,6 @@ stdenv.mkDerivation ({
     optional javaAwtGtk "--enable-java-awt=gtk" ++
     optional (langJava && javaAntlr != null) "--with-antlr-jar=${javaAntlr}" ++
 
-    # Ada
-    optional langAda "--enable-libada" ++
-
     platformFlags ++
     optional (targetPlatform != hostPlatform) crossConfigureFlags ++
     optional (!bootstrap) "--disable-bootstrap" ++
@@ -464,7 +448,7 @@ stdenv.mkDerivation ({
     ]);
 
   passthru = {
-    inherit langC langCC langObjC langObjCpp langAda langFortran langVhdl langGo version;
+    inherit langC langCC langObjC langObjCpp langFortran langGo version;
     isGNU = true;
     hardeningUnsupportedFlags = [ "stackprotector" ];
   };
@@ -490,13 +474,11 @@ stdenv.mkDerivation ({
 
     maintainers = with stdenv.lib.maintainers; [ viric peti ];
 
-    # gnatboot is not available out of linux platforms, so we disable the darwin build
-    # for the gnat (ada compiler).
     platforms =
       stdenv.lib.platforms.linux ++
       stdenv.lib.platforms.freebsd ++
       stdenv.lib.platforms.illumos ++
-      optionals (langAda == false) stdenv.lib.platforms.darwin;
+      stdenv.lib.platforms.darwin;
   };
 }
 
diff --git a/pkgs/development/compilers/gcc/4.9/default.nix b/pkgs/development/compilers/gcc/4.9/default.nix
index c436da678fd9d..5dfdbd02cbfdf 100644
--- a/pkgs/development/compilers/gcc/4.9/default.nix
+++ b/pkgs/development/compilers/gcc/4.9/default.nix
@@ -3,8 +3,6 @@
 , langObjC ? targetPlatform.isDarwin
 , langObjCpp ? targetPlatform.isDarwin
 , langJava ? false
-, langAda ? false
-, langVhdl ? false
 , langGo ? false
 , profiledCompiler ? false
 , staticCompiler ? false
@@ -21,13 +19,11 @@
 , libXrender ? null, xproto ? null, renderproto ? null, xextproto ? null
 , libXrandr ? null, libXi ? null, inputproto ? null, randrproto ? null
 , x11Support ? langJava
-, gnatboot ? null
 , enableMultilib ? false
 , enablePlugin ? hostPlatform == buildPlatform # Whether to support user-supplied plug-ins
 , name ? "gcc"
 , libcCross ? null
 , crossStageStatic ? false
-, gnat ? null
 , libpthread ? null, libpthreadCross ? null  # required for GNU/Hurd
 , stripped ? true
 , gnused ? null
@@ -39,8 +35,6 @@
 assert langJava     -> zip != null && unzip != null
                        && zlib != null && boehmgc != null
                        && perl != null;  # for `--enable-java-home'
-assert langAda      -> gnatboot != null;
-assert langVhdl     -> gnat != null;
 
 # We enable the isl cloog backend.
 assert cloog != null -> isl != null;
@@ -69,9 +63,6 @@ let version = "4.9.4";
       ++ optionals enableParallelBuilding [ ../parallel-bconfig.patch ./parallel-strsignal.patch ]
       ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
       ++ optional noSysDirs ../no-sys-dirs.patch
-      # The GNAT Makefiles did not pay attention to CFLAGS_FOR_TARGET for its
-      # target libraries and tools.
-      ++ optional langAda ../gnat-cflags.patch
       ++ optional langFortran ../gfortran-driving.patch
       ++ [ ../struct-ucontext.patch ../struct-sigaltstack-4.9.patch ] # glibc-2.26
       ;
@@ -284,8 +275,6 @@ stdenv.mkDerivation ({
     ++ (optionals langJava [ boehmgc zip unzip ])
     ++ (optionals javaAwtGtk ([ gtk2 libart_lgpl ] ++ xlibs))
     ++ (optionals (targetPlatform != hostPlatform) [targetPackages.stdenv.cc.bintools])
-    ++ (optionals langAda [gnatboot])
-    ++ (optionals langVhdl [gnat])
 
     # The builder relies on GNU sed (for instance, Darwin's `sed' fails with
     # "-i may not be used with stdin"), and `stdenvNative' doesn't provide it.
@@ -338,8 +327,6 @@ stdenv.mkDerivation ({
           ++ optional langCC       "c++"
           ++ optional langFortran  "fortran"
           ++ optional langJava     "java"
-          ++ optional langAda      "ada"
-          ++ optional langVhdl     "vhdl"
           ++ optional langGo       "go"
           ++ optional langObjC     "objc"
           ++ optional langObjCpp   "obj-c++"
@@ -377,9 +364,6 @@ stdenv.mkDerivation ({
     optional javaAwtGtk "--enable-java-awt=gtk" ++
     optional (langJava && javaAntlr != null) "--with-antlr-jar=${javaAntlr}" ++
 
-    # Ada
-    optional langAda "--enable-libada" ++
-
     platformFlags ++
     optional (targetPlatform != hostPlatform) crossConfigureFlags ++
     optional (!bootstrap) "--disable-bootstrap" ++
@@ -472,7 +456,7 @@ stdenv.mkDerivation ({
     ]);
 
   passthru =
-    { inherit langC langCC langObjC langObjCpp langAda langFortran langVhdl langGo version; isGNU = true; };
+    { inherit langC langCC langObjC langObjCpp langFortran langGo version; isGNU = true; };
 
   inherit enableParallelBuilding enableMultilib;
 
@@ -495,13 +479,11 @@ stdenv.mkDerivation ({
 
     maintainers = with stdenv.lib.maintainers; [ viric peti ];
 
-    # gnatboot is not available out of linux platforms, so we disable the darwin build
-    # for the gnat (ada compiler).
     platforms =
       stdenv.lib.platforms.linux ++
       stdenv.lib.platforms.freebsd ++
       stdenv.lib.platforms.illumos ++
-      optionals (langAda == false) stdenv.lib.platforms.darwin;
+      stdenv.lib.platforms.darwin;
   };
 }
 
diff --git a/pkgs/development/compilers/gcc/5/default.nix b/pkgs/development/compilers/gcc/5/default.nix
index b9ca8696d4e37..e42bb736676d4 100644
--- a/pkgs/development/compilers/gcc/5/default.nix
+++ b/pkgs/development/compilers/gcc/5/default.nix
@@ -3,8 +3,6 @@
 , langObjC ? targetPlatform.isDarwin
 , langObjCpp ? targetPlatform.isDarwin
 , langJava ? false
-, langAda ? false
-, langVhdl ? false
 , langGo ? false
 , profiledCompiler ? false
 , staticCompiler ? false
@@ -21,13 +19,11 @@
 , libXrender ? null, xproto ? null, renderproto ? null, xextproto ? null
 , libXrandr ? null, libXi ? null, inputproto ? null, randrproto ? null
 , x11Support ? langJava
-, gnatboot ? null
 , enableMultilib ? false
 , enablePlugin ? hostPlatform == buildPlatform # Whether to support user-supplied plug-ins
 , name ? "gcc"
 , libcCross ? null
 , crossStageStatic ? false
-, gnat ? null
 , libpthread ? null, libpthreadCross ? null  # required for GNU/Hurd
 , stripped ? true
 , gnused ? null
@@ -40,8 +36,6 @@
 assert langJava     -> zip != null && unzip != null
                        && zlib != null && boehmgc != null
                        && perl != null;  # for `--enable-java-home'
-assert langAda      -> gnatboot != null;
-assert langVhdl     -> gnat != null;
 
 # LTO needs libelf and zlib.
 assert libelf != null -> zlib != null;
@@ -67,9 +61,6 @@ let version = "5.5.0";
       [ ../use-source-date-epoch.patch ]
       ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
       ++ optional noSysDirs ../no-sys-dirs.patch
-      # The GNAT Makefiles did not pay attention to CFLAGS_FOR_TARGET for its
-      # target libraries and tools.
-      ++ optional langAda ../gnat-cflags.patch
       ++ optional langFortran ../gfortran-driving.patch
 
       # This could be applied unconditionally but I don't want to cause a full
@@ -306,8 +297,6 @@ stdenv.mkDerivation ({
     ++ (optionals langJava [ boehmgc zip unzip ])
     ++ (optionals javaAwtGtk ([ gtk2 libart_lgpl ] ++ xlibs))
     ++ (optionals (targetPlatform != hostPlatform) [targetPackages.stdenv.cc.bintools])
-    ++ (optionals langAda [gnatboot])
-    ++ (optionals langVhdl [gnat])
 
     # The builder relies on GNU sed (for instance, Darwin's `sed' fails with
     # "-i may not be used with stdin"), and `stdenvNative' doesn't provide it.
@@ -359,8 +348,6 @@ stdenv.mkDerivation ({
           ++ optional langCC       "c++"
           ++ optional langFortran  "fortran"
           ++ optional langJava     "java"
-          ++ optional langAda      "ada"
-          ++ optional langVhdl     "vhdl"
           ++ optional langGo       "go"
           ++ optional langObjC     "objc"
           ++ optional langObjCpp   "obj-c++"
@@ -393,9 +380,6 @@ stdenv.mkDerivation ({
     optional javaAwtGtk "--enable-java-awt=gtk" ++
     optional (langJava && javaAntlr != null) "--with-antlr-jar=${javaAntlr}" ++
 
-    # Ada
-    optional langAda "--enable-libada" ++
-
     platformFlags ++
     optional (targetPlatform != hostPlatform) crossConfigureFlags ++
     optional (!bootstrap) "--disable-bootstrap" ++
@@ -489,7 +473,7 @@ stdenv.mkDerivation ({
     ]);
 
   passthru =
-    { inherit langC langCC langObjC langObjCpp langAda langFortran langVhdl langGo version; isGNU = true; };
+    { inherit langC langCC langObjC langObjCpp langFortran langGo version; isGNU = true; };
 
   inherit enableParallelBuilding enableMultilib;
 
@@ -512,12 +496,10 @@ stdenv.mkDerivation ({
 
     maintainers = with stdenv.lib.maintainers; [ viric peti ];
 
-    # gnatboot is not available out of linux platforms, so we disable the darwin build
-    # for the gnat (ada compiler).
     platforms =
       stdenv.lib.platforms.linux ++
       stdenv.lib.platforms.freebsd ++
-      optionals (langAda == false) stdenv.lib.platforms.darwin;
+      stdenv.lib.platforms.darwin;
   };
 }
 
diff --git a/pkgs/development/compilers/gcc/6/default.nix b/pkgs/development/compilers/gcc/6/default.nix
index df0c1578daeda..cf71f51627c92 100644
--- a/pkgs/development/compilers/gcc/6/default.nix
+++ b/pkgs/development/compilers/gcc/6/default.nix
@@ -3,8 +3,6 @@
 , langObjC ? targetPlatform.isDarwin
 , langObjCpp ? targetPlatform.isDarwin
 , langJava ? false
-, langAda ? false
-, langVhdl ? false
 , langGo ? false
 , profiledCompiler ? false
 , staticCompiler ? false
@@ -21,13 +19,11 @@
 , libXrender ? null, xproto ? null, renderproto ? null, xextproto ? null
 , libXrandr ? null, libXi ? null, inputproto ? null, randrproto ? null
 , x11Support ? langJava
-, gnatboot ? null
 , enableMultilib ? false
 , enablePlugin ? hostPlatform == buildPlatform # Whether to support user-supplied plug-ins
 , name ? "gcc"
 , libcCross ? null
 , crossStageStatic ? false
-, gnat ? null
 , libpthread ? null, libpthreadCross ? null  # required for GNU/Hurd
 , stripped ? true
 , gnused ? null
@@ -40,8 +36,6 @@
 assert langJava     -> zip != null && unzip != null
                        && zlib != null && boehmgc != null
                        && perl != null;  # for `--enable-java-home'
-assert langAda      -> gnatboot != null;
-assert langVhdl     -> gnat != null;
 
 # LTO needs libelf and zlib.
 assert libelf != null -> zlib != null;
@@ -66,9 +60,6 @@ let version = "6.4.0";
       [ ../use-source-date-epoch.patch ]
       ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
       ++ optional noSysDirs ../no-sys-dirs.patch
-      # The GNAT Makefiles did not pay attention to CFLAGS_FOR_TARGET for its
-      # target libraries and tools.
-      ++ optional langAda ../gnat-cflags.patch
       ++ optional langFortran ../gfortran-driving.patch
       ++ [ ../struct-ucontext.patch ../struct-sigaltstack.patch ] # glibc-2.26
       ++ optional langJava [ ../struct-ucontext-libjava.patch ] # glibc-2.26
@@ -306,8 +297,6 @@ stdenv.mkDerivation ({
     ++ (optionals langJava [ boehmgc zip unzip ])
     ++ (optionals javaAwtGtk ([ gtk2 libart_lgpl ] ++ xlibs))
     ++ (optionals (targetPlatform != hostPlatform) [targetPackages.stdenv.cc.bintools])
-    ++ (optionals langAda [gnatboot])
-    ++ (optionals langVhdl [gnat])
 
     # The builder relies on GNU sed (for instance, Darwin's `sed' fails with
     # "-i may not be used with stdin"), and `stdenvNative' doesn't provide it.
@@ -363,8 +352,6 @@ stdenv.mkDerivation ({
           ++ optional langCC       "c++"
           ++ optional langFortran  "fortran"
           ++ optional langJava     "java"
-          ++ optional langAda      "ada"
-          ++ optional langVhdl     "vhdl"
           ++ optional langGo       "go"
           ++ optional langObjC     "objc"
           ++ optional langObjCpp   "obj-c++"
@@ -397,9 +384,6 @@ stdenv.mkDerivation ({
     optional javaAwtGtk "--enable-java-awt=gtk" ++
     optional (langJava && javaAntlr != null) "--with-antlr-jar=${javaAntlr}" ++
 
-    # Ada
-    optional langAda "--enable-libada" ++
-
     platformFlags ++
     optional (targetPlatform != hostPlatform) crossConfigureFlags ++
     optional (!bootstrap) "--disable-bootstrap" ++
@@ -492,7 +476,7 @@ stdenv.mkDerivation ({
     ]);
 
   passthru =
-    { inherit langC langCC langObjC langObjCpp langAda langFortran langVhdl langGo version; isGNU = true; };
+    { inherit langC langCC langObjC langObjCpp langFortran langGo version; isGNU = true; };
 
   inherit enableParallelBuilding enableMultilib;
 
@@ -515,12 +499,10 @@ stdenv.mkDerivation ({
 
     maintainers = with stdenv.lib.maintainers; [ viric peti ];
 
-    # gnatboot is not available out of linux platforms, so we disable the darwin build
-    # for the gnat (ada compiler).
     platforms =
       stdenv.lib.platforms.linux ++
       stdenv.lib.platforms.freebsd ++
-      optionals (langAda == false) stdenv.lib.platforms.darwin;
+      stdenv.lib.platforms.darwin;
   };
 }
 
diff --git a/pkgs/development/compilers/gcc/7/default.nix b/pkgs/development/compilers/gcc/7/default.nix
index 68a47987b2e16..8e7cd3d3fab8a 100644
--- a/pkgs/development/compilers/gcc/7/default.nix
+++ b/pkgs/development/compilers/gcc/7/default.nix
@@ -3,8 +3,6 @@
 , langObjC ? targetPlatform.isDarwin
 , langObjCpp ? targetPlatform.isDarwin
 , langJava ? false
-, langAda ? false
-, langVhdl ? false
 , langGo ? false
 , profiledCompiler ? false
 , staticCompiler ? false
@@ -21,13 +19,11 @@
 , libXrender ? null, xproto ? null, renderproto ? null, xextproto ? null
 , libXrandr ? null, libXi ? null, inputproto ? null, randrproto ? null
 , x11Support ? langJava
-, gnatboot ? null
 , enableMultilib ? false
 , enablePlugin ? hostPlatform == buildPlatform # Whether to support user-supplied plug-ins
 , name ? "gcc"
 , libcCross ? null
 , crossStageStatic ? false
-, gnat ? null
 , libpthread ? null, libpthreadCross ? null  # required for GNU/Hurd
 , stripped ? true
 , gnused ? null
@@ -40,8 +36,6 @@
 assert langJava     -> zip != null && unzip != null
                        && zlib != null && boehmgc != null
                        && perl != null;  # for `--enable-java-home'
-assert langAda      -> gnatboot != null;
-assert langVhdl     -> gnat != null;
 
 # LTO needs libelf and zlib.
 assert libelf != null -> zlib != null;
@@ -70,9 +64,6 @@ let version = "7.3.0";
         url = "https://git.busybox.net/buildroot/plain/package/gcc/7.1.0/0900-remove-selftests.patch?id=11271540bfe6adafbc133caf6b5b902a816f5f02";
         sha256 = "0mrvxsdwip2p3l17dscpc1x8vhdsciqw1z5q9i6p5g9yg1cqnmgs";
       })
-      # The GNAT Makefiles did not pay attention to CFLAGS_FOR_TARGET for its
-      # target libraries and tools.
-      ++ optional langAda ../gnat-cflags.patch
       ++ optional langFortran ../gfortran-driving.patch
          # https://gcc.gnu.org/ml/gcc-patches/2018-02/msg00633.html
       ++ optional targetPlatform.isRiscV ./riscv-pthread-reentrant.patch;
@@ -308,8 +299,6 @@ stdenv.mkDerivation ({
     ++ (optionals langJava [ boehmgc zip unzip ])
     ++ (optionals javaAwtGtk ([ gtk2 libart_lgpl ] ++ xlibs))
     ++ (optionals (targetPlatform != hostPlatform) [targetPackages.stdenv.cc.bintools])
-    ++ (optionals langAda [gnatboot])
-    ++ (optionals langVhdl [gnat])
 
     # The builder relies on GNU sed (for instance, Darwin's `sed' fails with
     # "-i may not be used with stdin"), and `stdenvNative' doesn't provide it.
@@ -361,8 +350,6 @@ stdenv.mkDerivation ({
           ++ optional langCC       "c++"
           ++ optional langFortran  "fortran"
           ++ optional langJava     "java"
-          ++ optional langAda      "ada"
-          ++ optional langVhdl     "vhdl"
           ++ optional langGo       "go"
           ++ optional langObjC     "objc"
           ++ optional langObjCpp   "obj-c++"
@@ -395,8 +382,6 @@ stdenv.mkDerivation ({
     optional javaAwtGtk "--enable-java-awt=gtk" ++
     optional (langJava && javaAntlr != null) "--with-antlr-jar=${javaAntlr}" ++
 
-    # Ada
-    optional langAda "--enable-libada" ++
 
     platformFlags ++
     optional (targetPlatform != hostPlatform) crossConfigureFlags ++
@@ -490,7 +475,7 @@ stdenv.mkDerivation ({
     ]);
 
   passthru =
-    { inherit langC langCC langObjC langObjCpp langAda langFortran langVhdl langGo version; isGNU = true; };
+    { inherit langC langCC langObjC langObjCpp langFortran langGo version; isGNU = true; };
 
   inherit enableParallelBuilding enableMultilib;
 
@@ -513,12 +498,10 @@ stdenv.mkDerivation ({
 
     maintainers = with stdenv.lib.maintainers; [ ];
 
-    # gnatboot is not available out of linux platforms, so we disable the darwin build
-    # for the gnat (ada compiler).
     platforms =
       stdenv.lib.platforms.linux ++
       stdenv.lib.platforms.freebsd ++
-      optionals (langAda == false) stdenv.lib.platforms.darwin;
+      stdenv.lib.platforms.darwin;
   };
 }
 
diff --git a/pkgs/development/compilers/gcc/builder.sh b/pkgs/development/compilers/gcc/builder.sh
index 1796c83385e54..a3250f4021a53 100644
--- a/pkgs/development/compilers/gcc/builder.sh
+++ b/pkgs/development/compilers/gcc/builder.sh
@@ -287,8 +287,6 @@ postInstall() {
     # See https://bugs.gentoo.org/show_bug.cgi?id=301299#c31
     paxmark r $out/libexec/gcc/*/*/{cc1,cc1plus}
 
-    eval "$postInstallGhdl"
-
     # Two identical man pages are shipped (moving and compressing is done later)
     ln -sf gcc.1 "$out"/share/man/man1/g++.1
 }
diff --git a/pkgs/development/compilers/gcc/gnat-cflags.patch b/pkgs/development/compilers/gcc/gnat-cflags.patch
deleted file mode 100644
index bf2acf065e9b9..0000000000000
--- a/pkgs/development/compilers/gcc/gnat-cflags.patch
+++ /dev/null
@@ -1,33 +0,0 @@
-diff --git a/libada/Makefile.in b/libada/Makefile.in
-index f5057a0..337e0c6 100644
---- a/libada/Makefile.in
-+++ b/libada/Makefile.in
-@@ -55,7 +55,7 @@ GCC_WARN_CFLAGS = $(LOOSE_WARN)
- WARN_CFLAGS = @warn_cflags@
- 
- TARGET_LIBGCC2_CFLAGS=
--GNATLIBCFLAGS= -g -O2
-+GNATLIBCFLAGS= -g -O2 $(CFLAGS)
- GNATLIBCFLAGS_FOR_C = $(GNATLIBCFLAGS) $(TARGET_LIBGCC2_CFLAGS) -fexceptions \
- 	-DIN_RTS @have_getipinfo@
- 
---- a/gcc/ada/gcc-interface/Makefile.in
-+++ b/gcc/ada/gcc-interface/Makefile.in
-@@ -105,7 +105,7 @@ ADAFLAGS = -W -Wall -gnatpg -gnata
- SOME_ADAFLAGS =-gnata
- FORCE_DEBUG_ADAFLAGS = -g
- GNATLIBFLAGS = -gnatpg -nostdinc
--GNATLIBCFLAGS = -g -O2
-+GNATLIBCFLAGS = -g -O2 $(CFLAGS_FOR_TARGET)
- # Pretend that _Unwind_GetIPInfo is available for the target by default.  This
- # should be autodetected during the configuration of libada and passed down to
- # here, but we need something for --disable-libada and hope for the best.
-@@ -193,7 +193,7 @@ RTSDIR = rts$(subst /,_,$(MULTISUBDIR))
- # Link flags used to build gnat tools.  By default we prefer to statically
- # link with libgcc to avoid a dependency on shared libgcc (which is tricky
- # to deal with as it may conflict with the libgcc provided by the system).
--GCC_LINK_FLAGS=-static-libgcc
-+GCC_LINK_FLAGS=-static-libgcc $(CFLAGS_FOR_TARGET)
- 
- # End of variables for you to override.
- 
diff --git a/pkgs/development/compilers/gcc/snapshot/default.nix b/pkgs/development/compilers/gcc/snapshot/default.nix
index c1306d374d5dd..e41e8789c9edb 100644
--- a/pkgs/development/compilers/gcc/snapshot/default.nix
+++ b/pkgs/development/compilers/gcc/snapshot/default.nix
@@ -3,8 +3,6 @@
 , langObjC ? targetPlatform.isDarwin
 , langObjCpp ? targetPlatform.isDarwin
 , langJava ? false
-, langAda ? false
-, langVhdl ? false
 , langGo ? false
 , profiledCompiler ? false
 , staticCompiler ? false
@@ -21,13 +19,11 @@
 , libXrender ? null, xproto ? null, renderproto ? null, xextproto ? null
 , libXrandr ? null, libXi ? null, inputproto ? null, randrproto ? null
 , x11Support ? langJava
-, gnatboot ? null
 , enableMultilib ? false
 , enablePlugin ? hostPlatform == buildPlatform # Whether to support user-supplied plug-ins
 , name ? "gcc"
 , libcCross ? null
 , crossStageStatic ? false
-, gnat ? null
 , libpthread ? null, libpthreadCross ? null  # required for GNU/Hurd
 , stripped ? true
 , gnused ? null
@@ -41,8 +37,6 @@
 assert langJava     -> zip != null && unzip != null
                        && zlib != null && boehmgc != null
                        && perl != null;  # for `--enable-java-home'
-assert langAda      -> gnatboot != null;
-assert langVhdl     -> gnat != null;
 
 # LTO needs libelf and zlib.
 assert libelf != null -> zlib != null;
@@ -67,9 +61,6 @@ let version = "7-20170409";
       [ ]
       ++ optional (targetPlatform != hostPlatform) ../libstdc++-target.patch
       ++ optional noSysDirs ../no-sys-dirs.patch
-      # The GNAT Makefiles did not pay attention to CFLAGS_FOR_TARGET for its
-      # target libraries and tools.
-      ++ optional langAda ../gnat-cflags.patch
       ++ optional langFortran ../gfortran-driving.patch;
 
     javaEcj = fetchurl {
@@ -278,8 +269,6 @@ stdenv.mkDerivation ({
     ++ (optionals langJava [ boehmgc zip unzip ])
     ++ (optionals javaAwtGtk ([ gtk2 libart_lgpl ] ++ xlibs))
     ++ (optionals (targetPlatform != hostPlatform) [targetPackages.stdenv.cc.bintools])
-    ++ (optionals langAda [gnatboot])
-    ++ (optionals langVhdl [gnat])
 
     # The builder relies on GNU sed (for instance, Darwin's `sed' fails with
     # "-i may not be used with stdin"), and `stdenvNative' doesn't provide it.
@@ -331,8 +320,6 @@ stdenv.mkDerivation ({
           ++ optional langCC       "c++"
           ++ optional langFortran  "fortran"
           ++ optional langJava     "java"
-          ++ optional langAda      "ada"
-          ++ optional langVhdl     "vhdl"
           ++ optional langGo       "go"
           ++ optional langObjC     "objc"
           ++ optional langObjCpp   "obj-c++"
@@ -365,9 +352,6 @@ stdenv.mkDerivation ({
     optional javaAwtGtk "--enable-java-awt=gtk" ++
     optional (langJava && javaAntlr != null) "--with-antlr-jar=${javaAntlr}" ++
 
-    # Ada
-    optional langAda "--enable-libada" ++
-
     platformFlags ++
     optional (targetPlatform != hostPlatform) crossConfigureFlags ++
     optional (!bootstrap) "--disable-bootstrap" ++
@@ -460,7 +444,7 @@ stdenv.mkDerivation ({
     ]);
 
   passthru =
-    { inherit langC langCC langObjC langObjCpp langAda langFortran langVhdl langGo version; isGNU = true; };
+    { inherit langC langCC langObjC langObjCpp langFortran langGo version; isGNU = true; };
 
   inherit enableParallelBuilding enableMultilib;
 
@@ -483,12 +467,10 @@ stdenv.mkDerivation ({
 
     maintainers = with stdenv.lib.maintainers; [ ];
 
-    # gnatboot is not available out of linux platforms, so we disable the darwin build
-    # for the gnat (ada compiler).
     platforms =
       stdenv.lib.platforms.linux ++
       stdenv.lib.platforms.freebsd ++
-      optionals (langAda == false) stdenv.lib.platforms.darwin;
+      stdenv.lib.platforms.darwin;
 
     broken = true;
   };
diff --git a/pkgs/development/compilers/ghdl/default.nix b/pkgs/development/compilers/ghdl/default.nix
deleted file mode 100644
index eaf9949b52da1..0000000000000
--- a/pkgs/development/compilers/ghdl/default.nix
+++ /dev/null
@@ -1,44 +0,0 @@
-{ stdenv, fetchFromGitHub, gnat, zlib, llvm_35, ncurses, clang, flavour ? "mcode" }:
-
-# mcode only works on x86, while the llvm flavour works on both x86 and x86_64.
-
-
-assert flavour == "llvm" || flavour == "mcode";
-
-let
-  inherit (stdenv.lib) optional;
-  inherit (stdenv.lib) optionals;
-  version = "0.33";
-in
-stdenv.mkDerivation rec {
-  name = "ghdl-${flavour}-${version}";
-
-  src = fetchFromGitHub {
-    owner = "tgingold";
-    repo = "ghdl";
-    rev = "v${version}";
-    sha256 = "0g72rk2yzr0lrpncq2c1qcv71w3mi2hjq84r1yzgjr6d0qm87r2a";
-  };
-
-  buildInputs = [ gnat zlib ] ++ optionals (flavour == "llvm") [ clang ncurses ];
-
-  configureFlags = optional (flavour == "llvm") "--with-llvm=${llvm_35}";
-
-  patchPhase = ''
-    # Disable warnings-as-errors, because there are warnings (unused things)
-    sed -i s/-gnatwae/-gnatwa/ Makefile.in ghdl.gpr.in
-  '';
-
-  hardeningDisable = [ "all" ];
-
-  enableParallelBuilding = true;
-
-  meta = {
-    homepage = https://sourceforge.net/p/ghdl-updates/wiki/Home/;
-    description = "Free VHDL simulator";
-    maintainers = with stdenv.lib.maintainers; [viric];
-    platforms = with stdenv.lib.platforms; (if flavour == "llvm" then [ "i686-linux" "x86_64-linux" ]
-      else [ "i686-linux" ]);
-    license = stdenv.lib.licenses.gpl2Plus;
-  };
-}
diff --git a/pkgs/development/compilers/gnatboot/default.nix b/pkgs/development/compilers/gnatboot/default.nix
deleted file mode 100644
index a209e392bc6f5..0000000000000
--- a/pkgs/development/compilers/gnatboot/default.nix
+++ /dev/null
@@ -1,48 +0,0 @@
-{stdenv, fetchurl}:
-
-stdenv.mkDerivation {
-  name = "gentoo-gnatboot-4.1";
-
-  src = if stdenv.system == "i686-linux" then
-    fetchurl {
-      url = "mirror://gentoo/distfiles/gnatboot-4.1-i386.tar.bz2";
-      sha256 = "0665zk71598204bf521vw68i5y6ccqarq9fcxsqp7ccgycb4lysr";
-    }
-    else if stdenv.system == "x86_64-linux" then
-    fetchurl {
-      url = "mirror://gentoo/distfiles/gnatboot-4.1-amd64.tar.bz2";
-      sha256 = "1li4d52lmbnfs6llcshlbqyik2q2q4bvpir0f7n38nagp0h6j0d4";
-    } else throw "Platform not supported";
-
-  dontStrip=1;
-
-  installPhase = ''
-    mkdir -p $out
-    cp -R * $out
-    set +e
-    for a in $out/bin/* ; do
-      patchelf --interpreter $(cat $NIX_CC/nix-support/dynamic-linker) \
-        --set-rpath $(cat $NIX_CC/nix-support/orig-libc)/lib:$(cat $NIX_CC/nix-support/orig-cc)/lib64:$(cat $NIX_CC/nix-support/orig-cc)/lib $a
-    done
-    set -e
-    mv $out/bin/gnatgcc_2wrap $out/bin/gnatgcc
-    ln -s $out/bin/gnatgcc $out/bin/gcc
-  '';
-
-  passthru = {
-    langC = true; /* TRICK for gcc-wrapper to wrap it */
-    langCC = false;
-    langFortran = false;
-    langAda = true;
-  };
-
-  meta = {
-    homepage = http://gentoo.org;
-    license = stdenv.lib.licenses.gpl3Plus;  # runtime support libraries are typically LGPLv3+
-    maintainers = [
-      stdenv.lib.maintainers.viric
-    ];
-    
-    platforms = stdenv.lib.platforms.linux;
-  };
-}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 63f9c1686a705..d5ac725f90d7b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -5958,20 +5958,6 @@ with pkgs;
     inherit binutils;
   };
 
-  gcc45 = lowPrio (wrapCC (callPackage ../development/compilers/gcc/4.5 {
-    inherit noSysDirs;
-    texinfo = texinfo4;
-
-    ppl = null;
-    cloogppl = null;
-
-    # bootstrapping a profiled compiler does not work in the sheevaplug:
-    # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43944
-    profiledCompiler = !stdenv.isArm;
-
-    libcCross = if targetPlatform != buildPlatform then libcCross else null;
-  }));
-
   gcc48 = lowPrio (wrapCC (callPackage ../development/compilers/gcc/4.8 {
     inherit noSysDirs;
 
@@ -6096,23 +6082,6 @@ with pkgs;
     inherit (gnome2) libart_lgpl;
   });
 
-  gnat = gnat45; # failed to make 4.6 or 4.8 build
-
-  gnat45 = wrapCC (gcc45.cc.override {
-    name = "gnat";
-    langCC = false;
-    langC = true;
-    langAda = true;
-    profiledCompiler = false;
-    inherit gnatboot;
-    # We can't use the ppl stuff, because we would have
-    # libstdc++ problems.
-    cloogppl = null;
-    ppl = null;
-  });
-
-  gnatboot = wrapGCC-old (callPackage ../development/compilers/gnatboot {});
-
   gnu-smalltalk = callPackage ../development/compilers/gnu-smalltalk {
     emacsSupport = config.emacsSupport or false;
   };
@@ -6126,14 +6095,6 @@ with pkgs;
     profiledCompiler = false;
   });
 
-  ghdl_mcode = callPackage_i686 ../development/compilers/ghdl {
-    flavour = "mcode";
-  };
-
-  ghdl_llvm = callPackage ../development/compilers/ghdl {
-    flavour = "llvm";
-  };
-
   gcl = callPackage ../development/compilers/gcl {
     gmp = gmp4;
   };
@@ -6791,14 +6752,6 @@ with pkgs;
     bintools = if targetPlatform.isDarwin then darwin.binutils else binutils;
     libc = if targetPlatform != hostPlatform then libcCross else stdenv.cc.libc;
   };
-  # legacy version, used for gnat bootstrapping
-  wrapGCC-old = baseGCC: callPackage ../build-support/gcc-wrapper-old {
-    nativeTools = stdenv.cc.nativeTools or false;
-    nativeLibc = stdenv.cc.nativeLibc or false;
-    nativePrefix = stdenv.cc.nativePrefix or "";
-    gcc = baseGCC;
-    libc = glibc;
-  };
 
   wrapBintoolsWith = { bintools, libc }: bintoolsWrapperFun {
     nativeTools = targetPlatform == hostPlatform && stdenv.cc.nativeTools or false;
diff --git a/pkgs/top-level/release-small.nix b/pkgs/top-level/release-small.nix
index 391d79e47f18f..ca4036dad80b0 100644
--- a/pkgs/top-level/release-small.nix
+++ b/pkgs/top-level/release-small.nix
@@ -48,7 +48,6 @@ with import ./release-lib.nix { inherit supportedSystems; };
   gcj = linux;
   glibc = linux;
   glibcLocales = linux;
-  gnat = linux;
   gnugrep = all;
   gnum4 = all;
   gnumake = all;