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macro(zxing_add_package_stb)
unset (STB_FOUND CACHE)
if (ZXING_DEPENDENCIES STREQUAL "AUTO")
find_package(PkgConfig)
pkg_check_modules (STB IMPORTED_TARGET stb)
elseif (ZXING_DEPENDENCIES STREQUAL "LOCAL")
find_package(PkgConfig REQUIRED)
pkg_check_modules (STB REQUIRED IMPORTED_TARGET stb)
endif()
if (NOT STB_FOUND)
include(FetchContent)
FetchContent_Declare (stb
GIT_REPOSITORY https://github.com/nothings/stb.git)
FetchContent_MakeAvailable (stb)
add_library(stb::stb INTERFACE IMPORTED)
target_include_directories(stb::stb INTERFACE ${stb_SOURCE_DIR})
else()
add_library(stb::stb ALIAS PkgConfig::STB)
endif()
endmacro()
macro(zxing_add_package name depname git_repo git_rev)
unset(${name}_FOUND CACHE) # see https://github.com/zxing-cpp/zxing-cpp/commit/8db14eeead45e0f1961532f55061d5e4dd0f78be#commitcomment-66464026
if (ZXING_DEPENDENCIES STREQUAL "AUTO")
find_package (${name} CONFIG)
elseif (ZXING_DEPENDENCIES STREQUAL "LOCAL")
find_package (${name} REQUIRED CONFIG)
endif()
if (NOT ${name}_FOUND)
include(FetchContent)
if (CMAKE_VERSION VERSION_GREATER_EQUAL "3.28")
FetchContent_Declare(
${depname}
GIT_REPOSITORY ${git_repo}
GIT_TAG ${git_rev}
EXCLUDE_FROM_ALL
)
if (${depname} STREQUAL "googletest")
# Prevent overriding the parent project's compiler/linker settings on Windows
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
endif()
FetchContent_MakeAvailable(${depname})
else()
FetchContent_Declare(
${depname}
GIT_REPOSITORY ${git_repo}
GIT_TAG ${git_rev}
)
if (${depname} STREQUAL "googletest")
# Prevent overriding the parent project's compiler/linker settings on Windows
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
endif()
FetchContent_GetProperties(${depname})
if (NOT ${depname}_POPULATED)
FetchContent_Populate(${depname})
add_subdirectory(
${${depname}_SOURCE_DIR}
${${depname}_BINARY_DIR}
EXCLUDE_FROM_ALL
)
endif()
# set (${name}_POPULATED TRUE) # this is supposed to be done in MakeAvailable but it seems not to?!?
endif()
endif()
endmacro()
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