Index: cmake/modules/AddLLVM.cmake =================================================================== --- cmake/modules/AddLLVM.cmake +++ cmake/modules/AddLLVM.cmake @@ -1488,3 +1488,36 @@ set(sandbox_command "sandbox-exec -p '(version 1) (allow default) ${deny_attributes_gen} ${deny_intrinsics_gen}'") set_target_properties(${name} PROPERTIES RULE_LAUNCH_COMPILE ${sandbox_command}) endfunction() + +# Figure out if we can track VC revisions. +function(find_first_existing_file out_var) + foreach(file ${ARGN}) + if(EXISTS "${file}") + set(${out_var} "${file}" PARENT_SCOPE) + return() + endif() + endforeach() +endfunction() + +macro(find_first_existing_vc_file out_var path) + find_program(git_executable NAMES git git.exe git.cmd) + # Run from a subdirectory to force git to print an absolute path. + execute_process(COMMAND ${git_executable} rev-parse --git-dir + WORKING_DIRECTORY ${path}/cmake + RESULT_VARIABLE git_result + OUTPUT_VARIABLE git_dir + ERROR_QUIET) + if(git_result EQUAL 0) + string(STRIP "${git_dir}" git_dir) + set(${out_var} "${git_dir}/logs/HEAD") + # some branchless cases (e.g. 'repo') may not yet have .git/logs/HEAD + if (NOT EXISTS "${git_dir}/logs/HEAD") + file(WRITE "${git_dir}/logs/HEAD" "") + endif() + else() + find_first_existing_file(${out_var} + "${path}/.svn/wc.db" # SVN 1.7 + "${path}/.svn/entries" # SVN 1.6 + ) + endif() +endmacro() Index: include/llvm/Support/CMakeLists.txt =================================================================== --- include/llvm/Support/CMakeLists.txt +++ include/llvm/Support/CMakeLists.txt @@ -1,36 +1,3 @@ -# Figure out if we can track VC revisions. -function(find_first_existing_file out_var) - foreach(file ${ARGN}) - if(EXISTS "${file}") - set(${out_var} "${file}" PARENT_SCOPE) - return() - endif() - endforeach() -endfunction() - -macro(find_first_existing_vc_file out_var path) - find_program(git_executable NAMES git git.exe git.cmd) - # Run from a subdirectory to force git to print an absolute path. - execute_process(COMMAND ${git_executable} rev-parse --git-dir - WORKING_DIRECTORY ${path}/cmake - RESULT_VARIABLE git_result - OUTPUT_VARIABLE git_dir - ERROR_QUIET) - if(git_result EQUAL 0) - string(STRIP "${git_dir}" git_dir) - set(${out_var} "${git_dir}/logs/HEAD") - # some branchless cases (e.g. 'repo') may not yet have .git/logs/HEAD - if (NOT EXISTS "${git_dir}/logs/HEAD") - file(WRITE "${git_dir}/logs/HEAD" "") - endif() - else() - find_first_existing_file(${out_var} - "${path}/.svn/wc.db" # SVN 1.7 - "${path}/.svn/entries" # SVN 1.6 - ) - endif() -endmacro() - find_first_existing_vc_file(llvm_vc "${LLVM_MAIN_SRC_DIR}") # The VC revision include that we want to generate.