autoconf: Add --disable-embed-stdcxx to suppress linking libstdc++.a into llvm.dll with --enable-shared on Cygming.
Cygwin has stdc++.dll in it's distribution, and we can assume distro's stdc++.dll might be available.
llvm-svn: 122622
diff --git a/llvm/tools/llvm-shlib/Makefile b/llvm/tools/llvm-shlib/Makefile
index 60b5435..e7605c8 100644
--- a/llvm/tools/llvm-shlib/Makefile
+++ b/llvm/tools/llvm-shlib/Makefile
@@ -18,11 +18,12 @@
include $(LEVEL)/Makefile.config
ifeq ($(HOST_OS), $(filter $(HOST_OS), Cygwin MingW))
- EXPORTED_SYMBOL_FILE = $(ObjDir)/$(LIBRARYNAME).exports
+ EXPORTED_SYMBOL_FILE = $(ObjDir)/$(LIBRARYNAME).exports
+ ifeq (1,$(ENABLE_EMBED_STDCXX))
# It is needed to force static-stdc++.a linked.
- # FIXME: It should be omitted when configure detects system's stdc++.dll.
SHLIB_FRAG_NAMES += stdc++.a.o
+ endif
endif