[compiler-rt] r281461 - [cmake] Support overriding llvm-config query results
Michal Gorny via llvm-commits
llvm-commits at lists.llvm.org
Wed Sep 14 06:42:31 PDT 2016
Author: mgorny
Date: Wed Sep 14 08:42:31 2016
New Revision: 281461
URL: http://llvm.org/viewvc/llvm-project?rev=281461&view=rev
Log:
[cmake] Support overriding llvm-config query results
Support overriding LLVM_* variables obtained from llvm-config when doing
stand-alone builds. The override of LLVM_MAIN_SRC_DIR is necessary to
provide LLVM sources when the initial directory used to build LLVM does
no longer exist when compiler-rt is built stand-alone. This is
especially the case when building the projects separately in temporary
directories with unpredictable names.
The code is based on existing CMakeLists.txt from clang. Alike clang, it
extends the override to all queried variables.
Differential Revision: https://reviews.llvm.org/D24005
Modified:
compiler-rt/trunk/cmake/Modules/CompilerRTUtils.cmake
Modified: compiler-rt/trunk/cmake/Modules/CompilerRTUtils.cmake
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/cmake/Modules/CompilerRTUtils.cmake?rev=281461&r1=281460&r2=281461&view=diff
==============================================================================
--- compiler-rt/trunk/cmake/Modules/CompilerRTUtils.cmake (original)
+++ compiler-rt/trunk/cmake/Modules/CompilerRTUtils.cmake Wed Sep 14 08:42:31 2016
@@ -197,10 +197,15 @@ macro(load_llvm_config)
message(FATAL_ERROR "llvm-config failed with status ${HAD_ERROR}")
endif()
string(REGEX REPLACE "[ \t]*[\r\n]+[ \t]*" ";" CONFIG_OUTPUT ${CONFIG_OUTPUT})
- list(GET CONFIG_OUTPUT 0 LLVM_BINARY_DIR)
- list(GET CONFIG_OUTPUT 1 LLVM_TOOLS_BINARY_DIR)
- list(GET CONFIG_OUTPUT 2 LLVM_LIBRARY_DIR)
- list(GET CONFIG_OUTPUT 3 LLVM_MAIN_SRC_DIR)
+ list(GET CONFIG_OUTPUT 0 BINARY_DIR)
+ list(GET CONFIG_OUTPUT 1 TOOLS_BINARY_DIR)
+ list(GET CONFIG_OUTPUT 2 LIBRARY_DIR)
+ list(GET CONFIG_OUTPUT 3 MAIN_SRC_DIR)
+
+ set(LLVM_BINARY_DIR ${BINARY_DIR} CACHE PATH "Path to LLVM build tree")
+ set(LLVM_TOOLS_BINARY_DIR ${TOOLS_BINARY_DIR} CACHE PATH "Path to llvm/bin")
+ set(LLVM_LIBRARY_DIR ${LIBRARY_DIR} CACHE PATH "Path to llvm/lib")
+ set(LLVM_MAIN_SRC_DIR ${MAIN_SRC_DIR} CACHE PATH "Path to LLVM source tree")
# Make use of LLVM CMake modules.
file(TO_CMAKE_PATH ${LLVM_BINARY_DIR} LLVM_BINARY_DIR_CMAKE_STYLE)
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