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

22 files changed, 60 insertions, 5 deletions

diff --git a/pkgs/applications/version-management/git-and-tools/git/default.nix b/pkgs/applications/version-management/git-and-tools/git/default.nix
index d548f39799a4..41da12cdf30c 100644
--- a/pkgs/applications/version-management/git-and-tools/git/default.nix
+++ b/pkgs/applications/version-management/git-and-tools/git/default.nix
@@ -74,7 +74,7 @@ stdenv.mkDerivation rec {
        '')
 
    + ''# Install man pages and Info manual
-       make PERL_PATH="${perl}/bin/perl" cmd-list.made install install-info \
+       make -j $NIX_BUILD_CORES -l $NIX_BUILD_CORES PERL_PATH="${perl}/bin/perl" cmd-list.made install install-info \
          -C Documentation ''
 
    + (if guiSupport then ''
@@ -116,6 +116,8 @@ stdenv.mkDerivation rec {
 
      '';
 
+  enableParallelBuilding = true;
+
   meta = {
     license = "GPLv2";
     homepage = http://git-scm.com/;
diff --git a/pkgs/development/compilers/gcc-4.3/default.nix b/pkgs/development/compilers/gcc-4.3/default.nix
index 73caa156bd01..b9d0d9bff5df 100644
--- a/pkgs/development/compilers/gcc-4.3/default.nix
+++ b/pkgs/development/compilers/gcc-4.3/default.nix
@@ -127,6 +127,8 @@ stdenv.mkDerivation ({
   passthru = { inherit langC langCC langFortran langVhdl langTreelang
       enableMultilib; };
 
+  enableParallelBuilding = true;
+
   meta = {
     homepage = "http://gcc.gnu.org/";
     license = "GPL/LGPL";
diff --git a/pkgs/development/compilers/gcc-4.4/default.nix b/pkgs/development/compilers/gcc-4.4/default.nix
index bdf2e58bcb4a..e4206cabd8a0 100644
--- a/pkgs/development/compilers/gcc-4.4/default.nix
+++ b/pkgs/development/compilers/gcc-4.4/default.nix
@@ -201,6 +201,8 @@ stdenv.mkDerivation ({
   passthru = { inherit langC langCC langAda langFortran langTreelang langVhdl
       enableMultilib version; };
 
+  enableParallelBuilding = true;
+
   meta = {
     homepage = http://gcc.gnu.org/;
     license = "GPLv3+";  # runtime support libraries are typically LGPLv3+
diff --git a/pkgs/development/compilers/gcc-4.5/default.nix b/pkgs/development/compilers/gcc-4.5/default.nix
index 39232c4988ec..38f4338d4ac2 100644
--- a/pkgs/development/compilers/gcc-4.5/default.nix
+++ b/pkgs/development/compilers/gcc-4.5/default.nix
@@ -289,6 +289,8 @@ stdenv.mkDerivation ({
   passthru = { inherit langC langCC langAda langFortran langTreelang langVhdl
       enableMultilib version; };
 
+  enableParallelBuilding = true;
+
   meta = {
     homepage = http://gcc.gnu.org/;
     license = "GPLv3+";  # runtime support libraries are typically LGPLv3+
diff --git a/pkgs/development/compilers/gcc-apple/default.nix b/pkgs/development/compilers/gcc-apple/default.nix
index 8006bd4426d7..3346a4e327a5 100644
--- a/pkgs/development/compilers/gcc-apple/default.nix
+++ b/pkgs/development/compilers/gcc-apple/default.nix
@@ -21,6 +21,8 @@ stdenv.mkDerivation ({
       sha256 = "a7d8041e50e110f5a503e188a05cb217f0c99c51f248a0a1387cc07a0b6f167f";
     }) ;
 
+  enableParallelBuilding = true;
+
   sourceRoot = "gcc_42-5574/";
   patches =
     [./pass-cxxcpp.patch ./debug_list.patch]
diff --git a/pkgs/development/compilers/gcc-apple64/default.nix b/pkgs/development/compilers/gcc-apple64/default.nix
index b87cd596a5b3..ec16fae79774 100644
--- a/pkgs/development/compilers/gcc-apple64/default.nix
+++ b/pkgs/development/compilers/gcc-apple64/default.nix
@@ -21,6 +21,8 @@ stdenv.mkDerivation ({
       sha256 = "1fy6j41rhxdsm19sib9wygjl5l54g8pm13c6y5x13f40mavw1mma";
     }) ;
 
+  enableParallelBuilding = true;
+
   libstdcxx = "libstdcxx-39";
   sourceRoot = "gcc-5646/";
   patches =
diff --git a/pkgs/development/interpreters/perl-5.10/default.nix b/pkgs/development/interpreters/perl-5.10/default.nix
index 31168291e3d1..76928d104481 100644
--- a/pkgs/development/interpreters/perl-5.10/default.nix
+++ b/pkgs/development/interpreters/perl-5.10/default.nix
@@ -39,6 +39,8 @@ stdenv.mkDerivation rec {
 
   dontAddPrefix = true;
 
+  enableParallelBuilding = true;
+
   preConfigure =
     ''
       configureFlags="$configureFlags -Dprefix=$out -Dman1dir=$out/share/man/man1 -Dman3dir=$out/share/man/man3"
diff --git a/pkgs/development/interpreters/python/2.6/default.nix b/pkgs/development/interpreters/python/2.6/default.nix
index 8865738b0d75..3fd035b09bb8 100644
--- a/pkgs/development/interpreters/python/2.6/default.nix
+++ b/pkgs/development/interpreters/python/2.6/default.nix
@@ -88,6 +88,8 @@ stdenv.mkDerivation ( {
     libPrefix = "python${majorVersion}";
   };
 
+  enableParallelBuilding = true;
+
   meta = {
     platforms = stdenv.lib.platforms.all;
   };
diff --git a/pkgs/development/libraries/glibc-2.11/builder.sh b/pkgs/development/libraries/glibc-2.11/builder.sh
index f8da3b8bbe2e..cbdb55b121b7 100644
--- a/pkgs/development/libraries/glibc-2.11/builder.sh
+++ b/pkgs/development/libraries/glibc-2.11/builder.sh
@@ -17,7 +17,7 @@ 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
     
     test -f $out/etc/ld.so.cache && rm $out/etc/ld.so.cache
diff --git a/pkgs/development/libraries/glibc-2.11/builder2.sh b/pkgs/development/libraries/glibc-2.11/builder2.sh
index f156e647e0b4..7d1a05131c2a 100644
--- a/pkgs/development/libraries/glibc-2.11/builder2.sh
+++ b/pkgs/development/libraries/glibc-2.11/builder2.sh
@@ -20,7 +20,7 @@ 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
     
     test -f $out/etc/ld.so.cache && rm $out/etc/ld.so.cache
diff --git a/pkgs/development/libraries/glibc-2.11/common.nix b/pkgs/development/libraries/glibc-2.11/common.nix
index b792e8447e74..00d9b99cc519 100644
--- a/pkgs/development/libraries/glibc-2.11/common.nix
+++ b/pkgs/development/libraries/glibc-2.11/common.nix
@@ -30,6 +30,8 @@ stdenv.mkDerivation ({
 
   inherit (stdenv) is64bit;
 
+  enableParallelBuilding = true;
+
   patches =
     stdenv.lib.optional (fetchgit == null)
     /* Fix for NIXPKGS-79: when doing host name lookups, when
diff --git a/pkgs/development/libraries/glibc-2.5/builder.sh b/pkgs/development/libraries/glibc-2.5/builder.sh
index 695a3a1ab3da..4cd0132e3700 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 abfc3d0f4395..83447d8fe8a9 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";
diff --git a/pkgs/development/libraries/gmp/4.3.1.nix b/pkgs/development/libraries/gmp/4.3.1.nix
index 17455b9f1dd4..5f83d9ae46dc 100644
--- a/pkgs/development/libraries/gmp/4.3.1.nix
+++ b/pkgs/development/libraries/gmp/4.3.1.nix
@@ -16,6 +16,8 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
 
+  enableParallelBuilding = true;
+
   meta = {
     description = "A free library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating point numbers";
     homepage = http://gmplib.org/;
diff --git a/pkgs/development/libraries/gmp/default.nix b/pkgs/development/libraries/gmp/default.nix
index 0b608fb4aada..ac20bc68f4d8 100644
--- a/pkgs/development/libraries/gmp/default.nix
+++ b/pkgs/development/libraries/gmp/default.nix
@@ -16,6 +16,8 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
 
+  enableParallelBuilding = true;
+
   meta = {
     description = "A free library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating point numbers";
     homepage = http://gmplib.org/;
diff --git a/pkgs/development/libraries/mpfr/default.nix b/pkgs/development/libraries/mpfr/default.nix
index dea0113cc69f..1bfd14482003 100644
--- a/pkgs/development/libraries/mpfr/default.nix
+++ b/pkgs/development/libraries/mpfr/default.nix
@@ -12,6 +12,8 @@ stdenv.mkDerivation rec {
 
   doCheck = true;
 
+  enableParallelBuilding = true;
+
   meta = {
     homepage = http://www.mpfr.org/;
     description = "GNU MPFR, a library for multiple-precision floating-point arithmetic";
diff --git a/pkgs/development/libraries/ncurses/default.nix b/pkgs/development/libraries/ncurses/default.nix
index 344db123801a..dd3d60e48129 100644
--- a/pkgs/development/libraries/ncurses/default.nix
+++ b/pkgs/development/libraries/ncurses/default.nix
@@ -14,7 +14,9 @@ stdenv.mkDerivation ( rec {
   '';
 
   selfBuildNativeInput = true;
-    
+
+  enableParallelBuilding = true;
+
   preBuild = ''sed -e "s@\([[:space:]]\)sh @\1''${SHELL} @" -i */Makefile Makefile'';
 
   # When building a wide-character (Unicode) build, create backward
diff --git a/pkgs/development/libraries/qt-4.x/4.5/default.nix b/pkgs/development/libraries/qt-4.x/4.5/default.nix
index 35960c4d8ba8..3b29043aeeb4 100644
--- a/pkgs/development/libraries/qt-4.x/4.5/default.nix
+++ b/pkgs/development/libraries/qt-4.x/4.5/default.nix
@@ -74,6 +74,8 @@ stdenv.mkDerivation {
     ${if keepDocumentation == false then "rm -rf $out/doc" else ""}
   '';
 
+  enableParallelBuilding = true;
+
   meta = {
     homepage = http://www.qtsoftware.com/downloads/opensource/appdev/linux-x11-cpp;
     description = "A cross-platform application framework for C++";
diff --git a/pkgs/development/libraries/qt-4.x/4.6/default.nix b/pkgs/development/libraries/qt-4.x/4.6/default.nix
index 9440765d830d..3253e58e7c21 100644
--- a/pkgs/development/libraries/qt-4.x/4.6/default.nix
+++ b/pkgs/development/libraries/qt-4.x/4.6/default.nix
@@ -89,6 +89,8 @@ stdenv.mkDerivation rec {
 
   postInstall = if useDocs then "rm -rf $out/share/doc/${name}/{html,src}" else "";
 
+  enableParallelBuilding = true;
+
   meta = {
     homepage = http://qt.nokia.com/products;
     description = "A cross-platform application framework for C++";
diff --git a/pkgs/development/libraries/qt-4.x/4.7/default.nix b/pkgs/development/libraries/qt-4.x/4.7/default.nix
index 2ab7c388553b..cc6d3c8d513e 100644
--- a/pkgs/development/libraries/qt-4.x/4.7/default.nix
+++ b/pkgs/development/libraries/qt-4.x/4.7/default.nix
@@ -99,6 +99,8 @@ stdenv.mkDerivation rec {
 
   postInstall = if useDocs then "rm -rf $out/share/doc/${name}/{html,src}" else "";
 
+  enableParallelBuilding = true;
+
   meta = with stdenv.lib; {
     homepage = http://qt.nokia.com/products;
     description = "A cross-platform application framework for C++";
diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index 5e2fc7b24dbe..948b6ca3ad66 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -269,6 +269,23 @@ fi
 export NIX_INDENT_MAKE=1
 
 
+# Normalize the NIX_BUILD_CORES variable. The value might be 0, which
+# means that we're supposed to try and auto-detect the number of
+# available CPU cores at run-time.
+
+if test -z "${NIX_BUILD_CORES:-}"; then
+  NIX_BUILD_CORES="1"
+elif test "$NIX_BUILD_CORES" -le 0; then
+  NIX_BUILD_CORES=$(nproc 2>/dev/null || true)
+  if expr >/dev/null 2>&1 "$NIX_BUILD_CORES" : "^[0-9][0-9]*$"; then
+    :
+  else
+    NIX_BUILD_CORES="1"
+  fi
+fi
+export NIX_BUILD_CORES
+
+
 ######################################################################
 # Misc. helper functions.
 
@@ -603,6 +620,7 @@ buildPhase() {
 
     echo "make flags: $makeFlags ${makeFlagsArray[@]} $buildFlags ${buildFlagsArray[@]}"
     make ${makefile:+-f $makefile} \
+        ${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} \
         $makeFlags "${makeFlagsArray[@]}" \
         $buildFlags "${buildFlagsArray[@]}"
 
@@ -615,6 +633,7 @@ checkPhase() {
 
     echo "check flags: $makeFlags ${makeFlagsArray[@]} $checkFlags ${checkFlagsArray[@]}"
     make ${makefile:+-f $makefile} \
+        ${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} \
         $makeFlags "${makeFlagsArray[@]}" \
         $checkFlags "${checkFlagsArray[@]}" ${checkTarget:-check}
 
diff --git a/pkgs/tools/misc/coreutils/default.nix b/pkgs/tools/misc/coreutils/default.nix
index f4cf9fe98869..8052ce9fa56a 100644
--- a/pkgs/tools/misc/coreutils/default.nix
+++ b/pkgs/tools/misc/coreutils/default.nix
@@ -24,6 +24,8 @@ stdenv.mkDerivation (rec {
   # and {Open,Free}BSD.
   doCheck = (stdenv ? glibc) && (cross == null);
 
+  enableParallelBuilding = true;
+
   meta = {
     homepage = http://www.gnu.org/software/coreutils/;
     description = "The basic file, shell and text manipulation utilities of the GNU operating system";