grpc: only set -Wno-error on clang

Apparently GCC errors on this: https://hydra.nixos.org/build/83561519/
2018-11-03 14:03:34 -05:00
parent ef16e1fe03
commit f0cee6b14f
1 changed files with 1 additions and 1 deletions
--- a/pkgs/development/libraries/grpc/default.nix
+++ b/pkgs/development/libraries/grpc/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
    rm -vf BUILD
  '';

-  NIX_CFLAGS_COMPILE = "-Wno-error=unknown-warning-option";
+  NIX_CFLAGS_COMPILE = stdenv.lib.optionalString stdenv.cc.isClang "-Wno-error=unknown-warning-option";

  enableParallelBuilds = true;