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Check if libclang components are found by cmake (#31)

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Add checks after find_xxxx() cmake commands to abort configuration
if any of the components/configs (include dir, libclang binary, etc) are
not found.
This commit is contained in:
Manu Sánchez 2018-01-18 06:47:32 +00:00 • committed by Jonathan Müller
commit 24365e8b82
1 changed files with 24 additions and 4 deletions
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28
external/external.cmake vendored
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@ -119,7 +119,12 @@ function(_cppast_find_libclang config_tool min_version force)
execute_process(COMMAND ${config_tool} --includedir
OUTPUT_VARIABLE llvm_include_dir OUTPUT_STRIP_TRAILING_WHITESPACE)
find_path(LIBCLANG_INCLUDE_DIR "clang-c/Index.h" "${llvm_include_dir}" NO_DEFAULT_PATH)
message(STATUS "Found libclang header files at ${LIBCLANG_INCLUDE_DIR}")
if(NOT LIBCLANG_INCLUDE_DIR)
message(FATAL_ERROR "libclang header files not found")
else()
message(STATUS "Found libclang header files at ${LIBCLANG_INCLUDE_DIR}")
endif()
endif()
# find libclang library in llvm_library_dir
@ -130,7 +135,12 @@ function(_cppast_find_libclang config_tool min_version force)
execute_process(COMMAND ${config_tool} --libdir
OUTPUT_VARIABLE llvm_library_dir OUTPUT_STRIP_TRAILING_WHITESPACE)
find_library(LIBCLANG_LIBRARY "clang" "${llvm_library_dir}" NO_DEFAULT_PATH)
message(STATUS "Found libclang library at ${LIBCLANG_LIBRARY}")
if(NOT LIBCLANG_LIBRARY)
message(FATAL_ERROR "libclang library not found")
else()
message(STATUS "Found libclang library at ${LIBCLANG_LIBRARY}")
endif()
endif()
# find system header files in llvm_library_dir
@ -139,7 +149,12 @@ function(_cppast_find_libclang config_tool min_version force)
endif()
if(NOT LIBCLANG_SYSTEM_INCLUDE_DIR)
find_path(LIBCLANG_SYSTEM_INCLUDE_DIR "stddef.h" "${llvm_library_dir}/clang/${llvm_version}/include" NO_DEFAULT_PATH)
message(STATUS "Found libclang system header files at ${LIBCLANG_SYSTEM_INCLUDE_DIR}")
if(NOT LIBCLANG_SYSTEM_INCLUDE_DIR)
message(FATAL_ERROR "libclang system header files not found")
else()
message(STATUS "Found libclang system header files at ${LIBCLANG_SYSTEM_INCLUDE_DIR}")
endif()
endif()
# find clang binary in llvm_binary_dir
@ -150,7 +165,12 @@ function(_cppast_find_libclang config_tool min_version force)
execute_process(COMMAND ${config_tool} --bindir
OUTPUT_VARIABLE llvm_binary_dir OUTPUT_STRIP_TRAILING_WHITESPACE)
find_program(CLANG_BINARY "clang" "${llvm_binary_dir}" NO_DEFAULT_PATH)
message(STATUS "Found clang binary at ${CLANG_BINARY}")
if(NOT CLANG_BINARY)
message(FATAL_ERROR "clang binary not found")
else()
message(STATUS "Found clang binary at ${CLANG_BINARY}")
endif()
endif()
endfunction()