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-rw-r--r--llvm/include/llvm/Config/llvm-config.h.cmake3
-rw-r--r--llvm/include/llvm/Support/Compiler.h10
2 files changed, 10 insertions, 3 deletions
diff --git a/llvm/include/llvm/Config/llvm-config.h.cmake b/llvm/include/llvm/Config/llvm-config.h.cmake
index 4493bb65d444..a182f835c0f2 100644
--- a/llvm/include/llvm/Config/llvm-config.h.cmake
+++ b/llvm/include/llvm/Config/llvm-config.h.cmake
@@ -103,4 +103,7 @@
/* Define if the xar_open() function is supported on this platform. */
#cmakedefine LLVM_HAVE_LIBXAR ${LLVM_HAVE_LIBXAR}
+/* Define if building libLLVM shared library */
+#cmakedefine LLVM_BUILD_LLVM_DYLIB
+
#endif
diff --git a/llvm/include/llvm/Support/Compiler.h b/llvm/include/llvm/Support/Compiler.h
index c5318137ed3d..abb0dab16cbc 100644
--- a/llvm/include/llvm/Support/Compiler.h
+++ b/llvm/include/llvm/Support/Compiler.h
@@ -121,12 +121,16 @@
/// On PE/COFF targets, library visibility is the default, so this isn't needed.
///
/// LLVM_EXTERNAL_VISIBILITY - classes, functions, and variables marked with
-/// this attribute will be made public and visible outside of any shared library
-/// they are linked in to.
+/// this attribute will be made public and visible outside the libLLVM dynamic
+/// library.
#if __has_attribute(visibility) && !defined(__MINGW32__) && \
!defined(__CYGWIN__) && !defined(_WIN32)
#define LLVM_LIBRARY_VISIBILITY __attribute__ ((visibility("hidden")))
-#define LLVM_EXTERNAL_VISIBILITY __attribute__ ((visibility("default")))
+#if defined(LLVM_BUILD_LLVM_DYLIB)
+#define LLVM_EXTERNAL_VISIBILITY __attribute__((visibility("default")))
+#else
+#define LLVM_EXTERNAL_VISIBILITY
+#endif
#else
#define LLVM_LIBRARY_VISIBILITY
#define LLVM_EXTERNAL_VISIBILITY