qt5base-lts/cmake/QtFinishPrlFile.cmake

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CMake
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# Finish a preliminary .prl file.
#
# - Replaces occurrences of the build libdir with $$[QT_INSTALL_LIBDIR/get].
# - Strips version number suffixes from absolute paths, because qmake's lflag
# merging does not handle them correctly.
#
# This file is to be used in CMake script mode with the following variables set:
# IN_FILE: path to the preliminary .prl file
# OUT_FILE: path to the final .prl file that's going to be installed
# QT_BUILD_LIBDIR: path to Qt's libdir when building (those paths get replaced)
# LIBRARY_SUFFIXES: list of known library extensions, e.g. .so;.a on Linux
function(strip_library_version_suffix out_var file_path)
get_filename_component(dir "${file_path}" DIRECTORY)
get_filename_component(basename "${file_path}" NAME_WE)
get_filename_component(ext "${file_path}" EXT)
foreach(libsuffix ${LIBRARY_SUFFIXES})
if(ext MATCHES "^${libsuffix}(\\.[0-9]+)+")
set(ext ${libsuffix})
break()
endif()
endforeach()
set(${out_var} "${dir}/${basename}${ext}" PARENT_SCOPE)
endfunction()
file(STRINGS "${IN_FILE}" lines)
set(content "")
foreach(line ${lines})
if(line MATCHES "^QMAKE_PRL_LIBS_FOR_CMAKE = (.*)")
unset(adjusted_libs)
foreach(lib ${CMAKE_MATCH_1})
if("${lib}" STREQUAL "")
continue()
endif()
if(IS_ABSOLUTE "${lib}")
strip_library_version_suffix(lib "${lib}")
file(RELATIVE_PATH relative_lib "${QT_BUILD_LIBDIR}" "${lib}")
if(IS_ABSOLUTE "${relative_lib}" OR (relative_lib MATCHES "^\\.\\."))
list(APPEND adjusted_libs "${lib}")
else()
list(APPEND adjusted_libs "$$[QT_INSTALL_LIBS/get]/${relative_lib}")
endif()
else()
if(NOT lib MATCHES "^-l")
string(PREPEND lib "-l")
endif()
list(APPEND adjusted_libs "${lib}")
endif()
endforeach()
list(JOIN adjusted_libs " " adjusted_libs_for_qmake)
string(APPEND content "QMAKE_PRL_LIBS = ${adjusted_libs_for_qmake}\n")
string(APPEND content "QMAKE_PRL_LIBS_FOR_CMAKE = ${adjusted_libs}\n")
else()
string(APPEND content "${line}\n")
endif()
endforeach()
file(WRITE "${OUT_FILE}" "${content}")