[clang] [Clang][Cygwin] Disable shared libs on Cygwin by default (PR #138119)

Thu May 1 06:02:46 PDT 2025

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@@ -106,7 +106,8 @@ if (LLVM_EXPORTED_SYMBOL_FILE)
                      DEPENDS ${LIBCLANG_VERSION_SCRIPT_FILE})
 endif()
 
-if(LLVM_ENABLE_PIC OR (WIN32 AND NOT LIBCLANG_BUILD_STATIC))
+if((NOT (WIN32 OR CYGWIN) AND LLVM_ENABLE_PIC) OR
+  ((WIN32 OR CYGWIN) AND NOT LIBCLANG_BUILD_STATIC))
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mati865 wrote:

Indeed, that's unfortunate and has always been a problem.
`LLVM_ENABLE_PIC` defaults to ON on Windows, so that condition never worked unless you explicitly disabled `LLVM_ENABLE_PIC` as found out by @jeremyd2019.

https://github.com/llvm/llvm-project/pull/138119
