[clang] [llvm] [LLVM][Clang][Cygwin] Fix building Clang for Cygwin (PR #134494)

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Mateusz =?utf-8?q?Miku=C5=82a?= <oss at mateuszmikula.dev>,
Mateusz =?utf-8?q?Miku=C5=82a?= <oss at mateuszmikula.dev>,
Mateusz =?utf-8?q?Miku=C5=82a?= <oss at mateuszmikula.dev>
Message-ID:
In-Reply-To: <llvm.org/llvm/llvm-project/pull/134494 at github.com>


================
@@ -106,7 +106,7 @@ if (LLVM_EXPORTED_SYMBOL_FILE)
                      DEPENDS ${LIBCLANG_VERSION_SCRIPT_FILE})
 endif()
 
-if(LLVM_ENABLE_PIC OR (WIN32 AND NOT LIBCLANG_BUILD_STATIC))
+if(LLVM_ENABLE_PIC OR ((WIN32 OR CYGWIN) AND NOT LIBCLANG_BUILD_STATIC))
----------------
jeremyd2019 wrote:

```suggestion
if((NOT (WIN32 OR CYGWIN) AND LLVM_ENABLE_PIC) OR
  ((WIN32 OR CYGWIN) AND NOT LIBCLANG_BUILD_STATIC))
```

since `LLVM_ENABLE_PIC` is always true on Windows

https://github.com/llvm/llvm-project/pull/134494