3 files changed, 3 insertions, 3 deletions
diff --git a/pkgs/development/compilers/gcc/4.4/default.nix b/pkgs/development/compilers/gcc/4.4/default.nix
index 4d896a14e8f..e81ca398319 100644
--- a/pkgs/development/compilers/gcc/4.4/default.nix
+++ b/pkgs/development/compilers/gcc/4.4/default.nix
@@ -246,7 +246,7 @@ stdenv.mkDerivation ({
       enableMultilib version; };
 
   # ghdl does not build fine with parallel building
-  enableParallelBuilding = !langVhdl;
+  enableParallelBuilding = !langVhdl && !langAda;
 
   meta = {
     homepage = http://gcc.gnu.org/;
diff --git a/pkgs/development/compilers/gcc/4.5/default.nix b/pkgs/development/compilers/gcc/4.5/default.nix
index cb0432b6672..e63ff7947f6 100644
--- a/pkgs/development/compilers/gcc/4.5/default.nix
+++ b/pkgs/development/compilers/gcc/4.5/default.nix
@@ -360,7 +360,7 @@ stdenv.mkDerivation ({
   passthru = { inherit langC langCC langAda langFortran langVhdl
       enableMultilib version; };
 
-  enableParallelBuilding = true;
+  enableParallelBuilding = !langAda;
 
   meta = {
     homepage = http://gcc.gnu.org/;
diff --git a/pkgs/development/compilers/gcc/4.6/default.nix b/pkgs/development/compilers/gcc/4.6/default.nix
index d7d9325ca4f..35255d0af5b 100644
--- a/pkgs/development/compilers/gcc/4.6/default.nix
+++ b/pkgs/development/compilers/gcc/4.6/default.nix
@@ -434,7 +434,7 @@ stdenv.mkDerivation ({
   passthru = { inherit langC langCC langAda langFortran langVhdl
       langGo version; };
 
-  enableParallelBuilding = true;
+  enableParallelBuilding = !langAda;
 
   inherit (stdenv) is64bit;