diff options
| author | Michal Gorny <mgorny@gentoo.org> | 2016-09-14 13:42:31 +0000 |
|---|---|---|
| committer | Michal Gorny <mgorny@gentoo.org> | 2016-09-14 13:42:31 +0000 |
| commit | 9504db07d2d5a5dc55f3e398b97379785e46c4d7 (patch) | |
| tree | 9572003841d8b47f82a8d8ae26ba1a3cc415a490 /cmake | |
| parent | d4837a858b3522434619b7a424f48342bbb6ed2d (diff) | |
[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
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@281461 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/Modules/CompilerRTUtils.cmake | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/cmake/Modules/CompilerRTUtils.cmake b/cmake/Modules/CompilerRTUtils.cmake index b2f27c000..ba2a7bcfc 100644 --- a/cmake/Modules/CompilerRTUtils.cmake +++ b/cmake/Modules/CompilerRTUtils.cmake @@ -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) |