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authorNAKAMURA Takumi <geek4civic@gmail.com>2014-02-23 06:27:04 +0000
committerNAKAMURA Takumi <geek4civic@gmail.com>2014-02-23 06:27:04 +0000
commit043cc54d6c9dedaa6e5316fe5be02f97f16d5d2b (patch)
tree911d252e31fb6d80081baecd236f30f8177e2c7a /tools/llvm-config
parentbe66089390c5692f7a9d80e8832996f2d8fdc8c0 (diff)
Simplify linking to system libraries
The LLVMSupport library implementation consolidates all dependencies on system libraries. Move the logic gathering system libraries out of 'cmake/modules/LLVM-Config.cmake' and into 'lib/Support/CMakeLists.txt'. Use the target_link_libraries() command there to tell CMake about the link dependencies of the LLVMSupport implementation. CMake will automatically propagate this to all targets that link LLVMSupport directly or indirectly. We still need to build knowledge of system library dependencies into 'llvm-config'. Store the list of libraries needed in a property on LLVMSupport and teach 'tools/llvm-config/CMakeLists.txt' to retrieve it from there. Drop all calls to 'link_system_libs' and 'get_system_libs' from our CMake code. Replace their implementations with a warning that explains the calls are no longer necessary. Also drop from 'LLVMConfig.cmake' the HAVE_* and related variables that were published there only to allow 'get_system_libs' to run outside our build process. Contributed by Brad King. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201969 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-config')
-rw-r--r--tools/llvm-config/CMakeLists.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/llvm-config/CMakeLists.txt b/tools/llvm-config/CMakeLists.txt
index e653b7790c4..6f29a828f51 100644
--- a/tools/llvm-config/CMakeLists.txt
+++ b/tools/llvm-config/CMakeLists.txt
@@ -4,7 +4,7 @@ set(BUILDVARIABLES_SRCPATH ${CMAKE_CURRENT_SOURCE_DIR}/BuildVariables.inc.in)
set(BUILDVARIABLES_OBJPATH ${CMAKE_CURRENT_BINARY_DIR}/BuildVariables.inc)
# Compute the substitution values for various items.
-get_system_libs(LLVM_SYSTEM_LIBS_LIST)
+get_property(LLVM_SYSTEM_LIBS_LIST TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS)
foreach(l ${LLVM_SYSTEM_LIBS_LIST})
set(SYSTEM_LIBS ${SYSTEM_LIBS} "-l${l}")
endforeach()