qt5base-lts/cmake/FindWrapSystemHarfbuzz.cmake
Joerg Bornemann 71a0b893fb CMake: Fix check for system harfbuzz if pkg-config is unavailable
We need to check whether pkg_check_modules returns success before
setting up target name etc.

Pick-to: 6.2 6.3 6.4
Fixes: QTBUG-103894
Change-Id: I12702639683723d976e93be95443099b88885869
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
2022-06-10 14:25:41 +02:00

64 lines
2.5 KiB
CMake

# We can't create the same interface imported target multiple times, CMake will complain if we do
# that. This can happen if the find_package call is done in multiple different subdirectories.
if(TARGET WrapSystemHarfbuzz::WrapSystemHarfbuzz)
set(WrapSystemHarfbuzz_FOUND TRUE)
return()
endif()
set(WrapSystemHarfbuzz_REQUIRED_VARS __harfbuzz_found)
find_package(harfbuzz ${${CMAKE_FIND_PACKAGE_NAME}_FIND_VERSION} QUIET)
# Gentoo has some buggy version of a harfbuzz Config file. Check if include paths are valid.
set(__harfbuzz_target_name "harfbuzz::harfbuzz")
if(harfbuzz_FOUND AND TARGET "${__harfbuzz_target_name}")
get_property(__harfbuzz_include_paths TARGET "${__harfbuzz_target_name}"
PROPERTY INTERFACE_INCLUDE_DIRECTORIES)
foreach(__harfbuzz_include_dir ${__harfbuzz_include_paths})
if(NOT EXISTS "${__harfbuzz_include_dir}")
# Must be the broken Gentoo harfbuzzConfig.cmake file. Try to use pkg-config instead.
set(__harfbuzz_broken_config_file TRUE)
break()
endif()
endforeach()
set(__harfbuzz_found TRUE)
if(harfbuzz_VERSION)
set(WrapSystemHarfbuzz_VERSION "${harfbuzz_VERSION}")
endif()
endif()
if(__harfbuzz_broken_config_file OR NOT __harfbuzz_found)
list(PREPEND WrapSystemHarfbuzz_REQUIRED_VARS HARFBUZZ_LIBRARIES HARFBUZZ_INCLUDE_DIRS)
find_package(PkgConfig QUIET)
pkg_check_modules(PC_HARFBUZZ harfbuzz IMPORTED_TARGET)
if(PC_HARFBUZZ_FOUND)
find_path(HARFBUZZ_INCLUDE_DIRS
NAMES harfbuzz/hb.h
HINTS ${PC_HARFBUZZ_INCLUDEDIR})
find_library(HARFBUZZ_LIBRARIES
NAMES harfbuzz
HINTS ${PC_HARFBUZZ_LIBDIR})
set(__harfbuzz_target_name "PkgConfig::PC_HARFBUZZ")
set(__harfbuzz_found TRUE)
if(PC_HARFBUZZ_VERSION)
set(WrapSystemHarfbuzz_VERSION "${PC_HARFBUZZ_VERSION}")
endif()
endif()
endif()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(WrapSystemHarfbuzz
REQUIRED_VARS ${WrapSystemHarfbuzz_REQUIRED_VARS}
VERSION_VAR WrapSystemHarfbuzz_VERSION)
if(WrapSystemHarfbuzz_FOUND)
add_library(WrapSystemHarfbuzz::WrapSystemHarfbuzz INTERFACE IMPORTED)
target_link_libraries(WrapSystemHarfbuzz::WrapSystemHarfbuzz
INTERFACE "${__harfbuzz_target_name}")
endif()
unset(__harfbuzz_target_name)
unset(__harfbuzz_found)
unset(__harfbuzz_include_dir)
unset(__harfbuzz_broken_config_file)