diff options
Diffstat (limited to 'pkgs/build-support/cc-wrapper/default.nix')
| -rw-r--r-- | pkgs/build-support/cc-wrapper/default.nix | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/pkgs/build-support/cc-wrapper/default.nix b/pkgs/build-support/cc-wrapper/default.nix index abc88910c36d2..d97f86327c79a 100644 --- a/pkgs/build-support/cc-wrapper/default.nix +++ b/pkgs/build-support/cc-wrapper/default.nix @@ -331,11 +331,18 @@ stdenv.mkDerivation { # 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. + # + # We use --sysroot=/nix/store/does/not/exist to drop embedded default + # path to glibc headers gcc was built against. Without it -idirafter + # only appends to the list and outdated glibc headers end up being + # used. 'cc-cflags-before' is used to allow user's --sysroot= option + # to override our default. + optionalString (libc != null) ('' touch "$out/nix-support/libc-cflags" touch "$out/nix-support/libc-ldflags" echo "-B${libc_lib}${libc.libdir or "/lib/"}" >> $out/nix-support/libc-crt1-cflags '' + optionalString (!(cc.langD or false)) '' + echo "--sysroot=/nix/store/does/not/exist" >> $out/nix-support/cc-cflags-before echo "-idirafter ${libc_dev}${libc.incdir or "/include"}" >> $out/nix-support/libc-cflags '' + optionalString (isGNU && (!(cc.langD or false))) '' for dir in "${cc}"/lib/gcc/*/*/include-fixed; do |