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-rw-r--r--nixpkgs/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/default.nix4
1 files changed, 4 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/default.nix b/nixpkgs/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/default.nix
index f2c4ec32146f..18233cfc5227 100644
--- a/nixpkgs/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/default.nix
+++ b/nixpkgs/pkgs/os-specific/darwin/apple-source-releases/developer_cmds/default.nix
@@ -16,6 +16,10 @@ appleDerivation {
       --replace "/usr/bin/cpp" "$out/bin/clang-cpp"
   '';
 
+  # Workaround build failure on -fno-common toolchains:
+  #   duplicate symbol '_btype_2' in:args.o pr_comment.o
+  NIX_CFLAGS_COMPILE = "-fcommon";
+
   # temporary install phase until xcodebuild has "install" support
   installPhase = ''
     for f in Products/Release/*; do