glm: only override to gcc6 if using gcc by default

Otherwise we have a regression on Darwin.
NixOS · Feb 18, 2018 · e202018 · e202018
1 parent a84844d
commit e202018
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
@@ -8783,9 +8783,9 @@ with pkgs;
     glibc32 = pkgsi686Linux.glibc;
   };
 
-  glm = callPackage ../development/libraries/glm {
-    stdenv = overrideCC stdenv gcc6; # maybe a hack
-  };
+  glm = callPackage ../development/libraries/glm
+    (lib.optionalAttrs stdenv.cc.isGNU { stdenv = overrideCC stdenv gcc6;/*maybe a hack*/ });
+
   glm_0954 = callPackage ../development/libraries/glm/0954.nix { };
 
   globalplatform = callPackage ../development/libraries/globalplatform { };