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| author | Alexis Murzeau <amubtdx@gmail.com> | 2020-04-29 22:09:45 +0200 |
|---|---|---|
| committer | Alexis Murzeau <amubtdx@gmail.com> | 2020-05-11 22:36:30 +0000 |
| commit | a9aa5612345bcfae9a5562e135dec9de8c3b8a8f (patch) | |
| tree | c668c7584982785c8eca076e759c9c89ea6b3236 /src/libs/clangsupport/CMakeLists.txt | |
| parent | 95d9eafc8a6bbd21f0bcde0274d2ec100d6f386b (diff) | |
CMake: copy clang and resource files only if necessary
Uses a timestamp file in the build directory to detect when the input
changes using DEPENDS from add_custom_command.
Total copied files size sum up to more than 260 MB. This was copied at every
incremental build, even if nothing changed.
This leads to faster build, especially when the copied files are not
cached in RAM or when not using a SSD.
Change-Id: I3a0b691b961e1d8591068bacf40ae2467c8637cf
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>
Diffstat (limited to 'src/libs/clangsupport/CMakeLists.txt')
| -rw-r--r-- | src/libs/clangsupport/CMakeLists.txt | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/src/libs/clangsupport/CMakeLists.txt b/src/libs/clangsupport/CMakeLists.txt index 20af2c1b9d..d1f38507cb 100644 --- a/src/libs/clangsupport/CMakeLists.txt +++ b/src/libs/clangsupport/CMakeLists.txt @@ -147,32 +147,18 @@ if (NOT TARGET libclang) return() endif() -add_custom_target(copy_clang_to_builddir ALL - COMMENT Copy Clang files into build directory -) - # For the developer build directory -add_custom_command(TARGET copy_clang_to_builddir POST_BUILD - COMMAND "${CMAKE_COMMAND}" - -E copy_directory - "${LLVM_LIBRARY_DIR}/clang/${CLANG_VERSION}/include" - "${PROJECT_BINARY_DIR}/${IDE_LIBEXEC_PATH}/clang/lib/clang/${CLANG_VERSION}/include" - VERBATIM +qtc_copy_to_builddir(copy_clang_to_builddir + DIRECTORIES "${LLVM_LIBRARY_DIR}/clang/${CLANG_VERSION}/include" + DESTINATION "${IDE_LIBEXEC_PATH}/clang/lib/clang/${CLANG_VERSION}/include" ) foreach(executable clang clang-cl clangd clang-tidy clazy-standalone) if (EXISTS "${LLVM_TOOLS_BINARY_DIR}/${executable}${CMAKE_EXECUTABLE_SUFFIX}") - add_custom_command(TARGET copy_clang_to_builddir PRE_BUILD - COMMAND "${CMAKE_COMMAND}" - -E make_directory - "${PROJECT_BINARY_DIR}/${IDE_LIBEXEC_PATH}/clang/bin/" - COMMAND "${CMAKE_COMMAND}" - -E copy - "${LLVM_TOOLS_BINARY_DIR}/${executable}${CMAKE_EXECUTABLE_SUFFIX}" - "${PROJECT_BINARY_DIR}/${IDE_LIBEXEC_PATH}/clang/bin/" - VERBATIM + qtc_copy_to_builddir(copy_clang_${executable}_to_builddir + FILES "${LLVM_TOOLS_BINARY_DIR}/${executable}${CMAKE_EXECUTABLE_SUFFIX}" + DESTINATION "${IDE_LIBEXEC_PATH}/clang/bin/" ) - # For the install directory install(PROGRAMS "${LLVM_TOOLS_BINARY_DIR}/${executable}${CMAKE_EXECUTABLE_SUFFIX}" |