* Allow Perl to be built using the native stdenv.

svn path=/nixpkgs/trunk/; revision=820

pkgs/development/interpreters/perl/builder.sh

@@ -8,6 +8,7 @@ cd perl-*
 
 # Perl's Configure messes with PATH.  We can't have that, so we patch it.
 # Yeah, this is an ugly hack.
+if test "$NIX_ENFORCE_PURITY" = "1" -a -n "$NIX_STORE"; then
     cat Configure | \
         grep -v '^paths=' | \
         grep -v '^locincpth=' | \
@@ -18,11 +19,10 @@ cat Configure | \
         cat > Configure.tmp
     mv Configure.tmp Configure
     chmod +x Configure
+fi
 
 patch -p1 < $srcPatch
 
-./Configure -de -Dcc=gcc -Dprefix=$out -Uinstallusrbinperl \
- -Dlocincpth="$NIX_LIBC_INCLUDES" \
- -Dloclibpth="$NIX_LIBC_LIBS"
+./Configure -de -Dcc=gcc -Dprefix=$out -Uinstallusrbinperl
 make
 make install