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cmake: add a utility to find simple libraries

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Lephenixnoir 2021-01-28 22:06:33 +01:00
parent 74766f381b
commit 51e60fcf06
Signed by: Lephenixnoir
GPG Key ID: 1BBA026E13FC0495
1 changed files with 36 additions and 0 deletions
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36
fxsdk/cmake/FindSimpleLibrary.cmake Normal file
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function(find_simple_library _library _version_header _version_macro)
cmake_parse_arguments(CLV "" "PATH_VAR;VERSION_VAR" "" ${ARGN})
# Find the library path
execute_process(
COMMAND ${CMAKE_C_COMPILER} "-print-file-name=${_library}"
OUTPUT_VARIABLE LIB_PATH OUTPUT_STRIP_TRAILING_WHITESPACE)
if("${LIB_PATH}" STREQUAL "${_library}")
message("lib not found")
return()
endif()
if(DEFINED CLV_PATH_VAR)
set("${CLV_PATH_VAR}" "${LIB_PATH}" PARENT_SCOPE)
endif()
# Find the version header
execute_process(
COMMAND ${CMAKE_C_COMPILER} "-print-file-name=${_version_header}"
OUTPUT_VARIABLE HEADER_PATH OUTPUT_STRIP_TRAILING_WHITESPACE)
if("${HEADER_PATH}" STREQUAL "${_version_header}")
return()
endif()
# Extract the version from the header
set(SED "s/^\\s*#\\s*define\\s*${_version_macro}\\s*\"(\\S+)\"\\s*$/\\1/p; d")
execute_process(
COMMAND sed -E "${SED}" "${HEADER_PATH}"
OUTPUT_VARIABLE VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
if(DEFINED CLV_VERSION_VAR)
set("${CLV_VERSION_VAR}" "${VERSION}" PARENT_SCOPE)
endif()
endfunction()