Merge pull request #262659 from reckenrode/crystal-fix

crystal: fix build with newer versions of clang
2023-11-05 19:59:01 +01:00
parent e437fe253b 2ce46f4fc0
commit 754ada3a56
1 changed files with 5 additions and 0 deletions
@@ -148,6 +148,11 @@ let
        # See https://github.com/NixOS/nixpkgs/pull/195606#issuecomment-1356491277
        substituteInPlace spec/compiler/loader/unix_spec.cr \
          --replace 'it "parses file paths"' 'pending "parses file paths"'
+      '' + lib.optionalString (stdenv.cc.isClang && (stdenv.cc.libcxx != null)) ''
+        # Darwin links against libc++ not libstdc++. Newer versions of clang (12+) require
+        # libc++abi to be linked explicitly (see https://github.com/NixOS/nixpkgs/issues/166205).
+        substituteInPlace src/llvm/lib_llvm.cr \
+          --replace '@[Link("stdc++")]' '@[Link("c++", "-l${stdenv.cc.libcxx.cxxabi.libName}")]'
      '';

      # Defaults are 4