* gcc-wrapper now filters out -L and -I flags referring to paths

outside the store (in pure builds).

svn path=/nixpkgs/trunk/; revision=817

pkgs/stdenv/generic/setup.sh

@@ -21,6 +21,11 @@ param5=@param5@
 . @preHook@
 
 
+if test -f @gcc@/nix-support/setup-hook; then
+    . @gcc@/nix-support/setup-hook
+fi
+
+    
 # Recursively find all build inputs.
 findInputs()
 {
@@ -76,6 +81,10 @@ export NIX_STRIP_DEBUG=1
 export NIX_CFLAGS_STRIP="-g0 -Wl,-s"
 
 
+# Where is the store?  This is required for purity checking.
+export NIX_STORE=$(dirname $out)/ # !!! hack
+
+
 # Execute the post-hook.
 . @postHook@