diff options
Diffstat (limited to 'Build/source/libs/libpng/libpng-src/contrib/pngminus/CMakeLists.txt')
-rw-r--r-- | Build/source/libs/libpng/libpng-src/contrib/pngminus/CMakeLists.txt | 53 |
1 files changed, 35 insertions, 18 deletions
diff --git a/Build/source/libs/libpng/libpng-src/contrib/pngminus/CMakeLists.txt b/Build/source/libs/libpng/libpng-src/contrib/pngminus/CMakeLists.txt index 1f815a58251..d7893648a72 100644 --- a/Build/source/libs/libpng/libpng-src/contrib/pngminus/CMakeLists.txt +++ b/Build/source/libs/libpng/libpng-src/contrib/pngminus/CMakeLists.txt @@ -1,24 +1,41 @@ -cmake_minimum_required(VERSION 3.1) -cmake_policy(VERSION 3.1) +# Copyright (c) 2018-2024 Cosmin Truta +# +# This software is released under the MIT license. For conditions of +# distribution and use, see the LICENSE file part of this package. -project(PNGMINUS C) +cmake_minimum_required(VERSION 3.5) -option(PNGMINUS_USE_STATIC_LIBRARIES "Use the static library builds" ON) +project(PNGMINUS C) -# libpng -add_subdirectory(../.. libpng) -include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../..) -include_directories(${CMAKE_CURRENT_BINARY_DIR}/libpng) -if(PNGMINUS_USE_STATIC_LIBRARIES) - set(PNGMINUS_PNG_LIBRARY png_static) -else() - set(PNGMINUS_PNG_LIBRARY png) -endif() +option(PNGMINUS_USE_SYSTEM_PNG + "Use the libpng build found in the system" OFF) -# png2pnm add_executable(png2pnm png2pnm.c) -target_link_libraries(png2pnm ${PNGMINUS_PNG_LIBRARY}) - -# pnm2png add_executable(pnm2png pnm2png.c) -target_link_libraries(pnm2png ${PNGMINUS_PNG_LIBRARY}) + +if(PNGMINUS_USE_SYSTEM_PNG) + # Use the system libpng. + find_package(PNG REQUIRED) + target_link_libraries(png2pnm PRIVATE PNG::PNG) + target_link_libraries(pnm2png PRIVATE PNG::PNG) +else() + # Build and use the internal libpng. + # Configure libpng for static linking, to produce single-file executables. + set(PNG_STATIC ON + CACHE STRING "Build the internal libpng as a static library" FORCE) + set(PNG_SHARED OFF + CACHE STRING "Build the internal libpng as a shared library" FORCE) + set(PNG_FRAMEWORK OFF + CACHE STRING "Build the internal libpng as a framework bundle" FORCE) + add_subdirectory(../.. libpng) + target_include_directories(png2pnm PRIVATE + "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../..>" + "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/libpng>" + ) + target_include_directories(pnm2png PRIVATE + "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../..>" + "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/libpng>" + ) + target_link_libraries(png2pnm PRIVATE png_static) + target_link_libraries(pnm2png PRIVATE png_static) +endif() |