Enable parallel building of gcc, glibc, gmp, mpfr, ncurses, coreutils, perl, python, git, and qt4.

If a build expressions has set "enableParallelBuilding = true", then the
generic builder may utilize more than one CPU core to build that particular
expression. This feature works out of the box for GNU Make. Expressions that
use other build drivers like Boost.Jam or SCons have to specify appropriate
flags such as "-j${NIX_BUILD_CORES}" themselves.

svn path=/nixpkgs/trunk/; revision=23042

2 files changed, 3 insertions, 1 deletions

diff --git a/pkgs/development/libraries/glibc-2.5/builder.sh b/pkgs/development/libraries/glibc-2.5/builder.sh
index 695a3a1ab3dab..4cd0132e37008 100644
--- a/pkgs/development/libraries/glibc-2.5/builder.sh
+++ b/pkgs/development/libraries/glibc-2.5/builder.sh
@@ -38,7 +38,7 @@ postConfigure() {
 
 postInstall() {
     if test -n "$installLocales"; then
-        make localedata/install-locales
+        make -j${NIX_BUILD_CORES:-1} -l${NIX_BUILD_CORES:-1} localedata/install-locales
     fi
     rm $out/etc/ld.so.cache
     (cd $out/include && ln -s $kernelHeaders/include/* .) || exit 1
diff --git a/pkgs/development/libraries/glibc-2.5/default.nix b/pkgs/development/libraries/glibc-2.5/default.nix
index abfc3d0f43955..83447d8fe8a97 100644
--- a/pkgs/development/libraries/glibc-2.5/default.nix
+++ b/pkgs/development/libraries/glibc-2.5/default.nix
@@ -30,6 +30,8 @@ stdenv.mkDerivation {
   # the symbol __i686.get_pc_thunk.dx to be mangled.
   NIX_CFLAGS_COMPILE = "-U__i686";
 
+  enableParallelBuilding = true;
+
   meta = {
     homepage = http://www.gnu.org/software/libc/;
     description = "The GNU C Library";