From 77c78985158b3e32293aee64d7f72e44a99d2a01 Mon Sep 17 00:00:00 2001 From: Jonathan Peyton Date: Thu, 23 Jul 2015 14:41:35 +0000 Subject: [PATCH] [CMake] Fix libomp_check_linker_flag function libomp_check_linker_flag rewrites src_to_link.c and CMakeLists.txt in build directory for test project, but cmake does not rebuild the project. The root cause is that on some filesystems (ext3, reiserfs) timestamp resoultion is 1 second. So cmake does not rebuild test project if check takes less than 1 second. This patch puts each test in its own directory to avoid the timestamp problem. Patch by Chris Bergstrom http://lists.cs.uiuc.edu/pipermail/openmp-dev/2015-July/000817.html llvm-svn: 243017 --- openmp/runtime/cmake/LibompCheckLinkerFlag.cmake | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/openmp/runtime/cmake/LibompCheckLinkerFlag.cmake b/openmp/runtime/cmake/LibompCheckLinkerFlag.cmake index 1c4a085..75a38e3 100644 --- a/openmp/runtime/cmake/LibompCheckLinkerFlag.cmake +++ b/openmp/runtime/cmake/LibompCheckLinkerFlag.cmake @@ -23,7 +23,7 @@ function(libomp_check_linker_flag flag boolean) set(CMAKE_SHARED_LINKER_FLAGS \"${flag}\") add_library(foo SHARED src_to_link.c)") set(failed_regexes "[Ee]rror;[Uu]nknown;[Ss]kipping;LINK : warning") - set(base_dir ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/link_flag_check) + set(base_dir ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/link_flag_check_${boolean}) file(MAKE_DIRECTORY ${base_dir}) file(MAKE_DIRECTORY ${base_dir}/build) file(WRITE ${base_dir}/src_to_link.c "${library_source}") -- 2.7.4