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[cmake] Fix host tools build in when LLVM_EXPERIMENTAL_TARGETS_TO_BUILD is set
[android-x86/external-llvm.git] / cmake / modules / GenerateVersionFromCVS.cmake
1 # CMake project that writes Subversion revision information to a header.
2 #
3 # Input variables:
4 #   SRC               - Source directory
5 #   HEADER_FILE       - The header file to write
6 #
7 # The output header will contain macros FIRST_REPOSITORY and FIRST_REVISION,
8 # and SECOND_REPOSITORY and SECOND_REVISION if requested, where "FIRST" and
9 # "SECOND" are substituted with the names specified in the input variables.
10
11
12
13 # Chop off cmake/modules/GetSVN.cmake
14 get_filename_component(LLVM_DIR "${CMAKE_SCRIPT_MODE_FILE}" PATH)
15 get_filename_component(LLVM_DIR "${LLVM_DIR}" PATH)
16 get_filename_component(LLVM_DIR "${LLVM_DIR}" PATH)
17
18 set(CMAKE_MODULE_PATH
19   ${CMAKE_MODULE_PATH}
20   "${LLVM_DIR}/cmake/modules")
21 include(VersionFromVCS)
22
23 # Handle strange terminals
24 set(ENV{TERM} "dumb")
25
26 function(append_info name path)
27   add_version_info_from_vcs(REVISION ${path})
28   string(STRIP "${REVISION}" REVISION)
29   file(APPEND "${HEADER_FILE}.txt"
30     "#define ${name} \"${REVISION}\"\n")
31 endfunction()
32
33 append_info(${NAME} "${SOURCE_DIR}")
34
35 # Copy the file only if it has changed.
36 execute_process(COMMAND ${CMAKE_COMMAND} -E copy_if_different
37   "${HEADER_FILE}.txt" "${HEADER_FILE}")
38 file(REMOVE "${HEADER_FILE}.txt")
39