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CMake: Automatic regeneration of the library dependencies file.

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It doesn't stop or reconfigure the build, though, so the user will see
a broken build that magically succeeds at the next attempt. It is
technically possible to halt the build with a helpful message, and
even to automatically restart the build using the new dependencies as
it we did when llvm-config was used by cmake for learning
dependencies. This is left on the TODO list.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79004 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Oscar Fuentes
2009-08-14 16:59:41 +00:00
parent 717f1dcfac
commit 94d38e561b
3 changed files with 49 additions and 26 deletions
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22
tools/llvm-config/CMakeLists.txt
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@ -124,4 +124,26 @@ install(FILES ${LLVM_CONFIG}
WORLD_READ WORLD_EXECUTE
DESTINATION bin)
# Regeneration of library dependencies.
# See the comments at the end of cmake/modules/LLVMConfig.cmake for
# notes and guidelines.
set(LLVMLibDeps ${LLVM_MAIN_SRC_DIR}/cmake/modules/LLVMLibDeps.cmake)
set(LLVMLibDeps_TMP ${CMAKE_CURRENT_BINARY_DIR}/LLVMLibDeps.cmake.tmp)
add_custom_command(OUTPUT ${LLVMLibDeps_TMP}
COMMAND sed -e s'@\\.a@@g' -e 's@libLLVM@LLVM@g' -e 's@: @ @' -e 's@\\\(.*\\\)@set\(MSVC_LIB_DEPS_\\1\)@' ${FINAL_LIBDEPS} > ${LLVMLibDeps_TMP}
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${LLVMLibDeps_TMP} ${LLVMLibDeps}
DEPENDS ${FINAL_LIBDEPS}
COMMENT "Updating cmake library dependencies file ${LLVMLibDeps}"
)
if( LLVM_TARGETS_TO_BUILD STREQUAL LLVM_ALL_TARGETS )
add_custom_target(llvmlibdeps.target ALL DEPENDS ${LLVMLibDeps_TMP})
add_dependencies(llvmlibdeps.target llvm-config.target)
set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} llvmlibdeps.target)
endif()
set(LLVM_COMMON_DEPENDS ${LLVM_COMMON_DEPENDS} PARENT_SCOPE)