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-rw-r--r--llvm/include/llvm/Support/Compiler.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/include/llvm/Support/Compiler.h b/llvm/include/llvm/Support/Compiler.h
index 9750579f2c2..7186b22a403 100644
--- a/llvm/include/llvm/Support/Compiler.h
+++ b/llvm/include/llvm/Support/Compiler.h
@@ -17,7 +17,7 @@
// The VISIBILITY_HIDDEN macro, used for marking classes with the GCC-specific
// visibility("hidden") attribute.
-#if (__GNUC__ >= 4) && !defined(__MINGW32__)
+#if (__GNUC__ >= 4) && !defined(__MINGW32__) && !defined(__CYGWIN__)
#define VISIBILITY_HIDDEN __attribute__ ((visibility("hidden")))
#else
#define VISIBILITY_HIDDEN
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