[Clang][Cygwin] Fix symbol visibility definition #138118
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Currently building for Cygwin hits this error: ``` In file included from /h/projects/llvm-project/clang/lib/Basic/Attributes.cpp:17: /h/projects/llvm-project/clang/include/clang/Basic/ParsedAttrInfo.h:180:73: error: invalid declarator before ‘;’ token 180 | extern template class CLANG_TEMPLATE_ABI Registry<clang::ParsedAttrInfo>; ``` That's because `CLANG_TEMPLATE_ABI` ends up not being defined. The solution here is to follow MinGW case.
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@llvm/pr-subscribers-clang Author: Mateusz Mikuła (mati865) ChangesCurrently building for Cygwin hits this error: That's because Split out from #134494 Full diff: https://github.com/llvm/llvm-project/pull/138118.diff 1 Files Affected:
diff --git a/clang/include/clang/Support/Compiler.h b/clang/include/clang/Support/Compiler.h
index 5a74f8e3b6723..e1ae3eda4ccc2 100644
--- a/clang/include/clang/Support/Compiler.h
+++ b/clang/include/clang/Support/Compiler.h
@@ -50,7 +50,7 @@
#define CLANG_EXPORT_TEMPLATE
#endif
#elif defined(__ELF__) || defined(__MINGW32__) || defined(_AIX) || \
- defined(__MVS__)
+ defined(__MVS__) || defined(__CYGWIN__)
#define CLANG_ABI LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
#define CLANG_TEMPLATE_ABI LLVM_ATTRIBUTE_VISIBILITY_DEFAULT
#define CLANG_EXPORT_TEMPLATE
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Currently building for Cygwin hits this error:
That's because
CLANG_TEMPLATE_ABIends up not being defined. The solution here is to follow MinGW case.Split out from #134494