[libc++][CMake] Do not define `cxx_shared_EXPORTS` when building the shared library
CMake will define -Dcxx_shared_EXPORTS when building the shared library
by default. In theory, this is used to signal to the library that we're
building a shared library and that dllimport/dllexport should be used.
However, we already have our own way of doing that, so I'm removing this
define to avoid meaningless command line arguments in the build.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@356167 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 91924f4..fd493d4 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -207,6 +207,7 @@
OUTPUT_NAME "c++"
VERSION "${LIBCXX_ABI_VERSION}.0"
SOVERSION "${LIBCXX_ABI_VERSION}"
+ DEFINE_SYMBOL ""
)
cxx_set_common_defines(cxx_shared)
