From: Reid Kleckner <reid@kleckner.net>
Date: Fri, 25 Apr 2014 01:44:20 +0000 (+0000)
Subject: Change llvm-config --ldflags to report ${CMAKE_CXX_LINK_FLAGS}
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b33022e1da567d52163b1b621f5746d10814232c;p=oota-llvm.git

Change llvm-config --ldflags to report ${CMAKE_CXX_LINK_FLAGS}

Should fix PR19526.

When Oscar added this code in the intial CMake build system port, he had
a TODO saying that ${CMAKE_SHARED_LINKER_FLAGS} was probably wrong.  I
agree.  I'm using ${CMAKE_CXX_LINK_FLAGS} to point LLVM at my custom
installation of gcc 4.recent, so that seems more correct.  With this
change, I can build creduce against an installed clang, and it picks up
the write flags from --ldflags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207171 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/tools/llvm-config/CMakeLists.txt b/tools/llvm-config/CMakeLists.txt
index 6f29a828f51..8d8376271de 100644
--- a/tools/llvm-config/CMakeLists.txt
+++ b/tools/llvm-config/CMakeLists.txt
@@ -16,7 +16,8 @@ set(LLVM_OBJ_ROOT ${LLVM_BINARY_DIR})
 set(LLVM_CPPFLAGS "${CMAKE_CPP_FLAGS} ${CMAKE_CPP_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
 set(LLVM_CFLAGS "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
 set(LLVM_CXXFLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${uppercase_CMAKE_BUILD_TYPE}} ${LLVM_DEFINITIONS}")
-set(LLVM_LDFLAGS ${CMAKE_SHARED_LINKER_FLAGS})
+# Use the C++ link flags, since they should be a superset of C link flags.
+set(LLVM_LDFLAGS "${CMAKE_CXX_LINK_FLAGS}")
 set(LLVM_BUILDMODE ${CMAKE_BUILD_TYPE})
 set(LLVM_SYSTEM_LIBS ${SYSTEM_LIBS})
 string(REPLACE ";" " " LLVM_TARGETS_BUILT "${LLVM_TARGETS_TO_BUILD}")