ba625b652b
This required proper ordering of libraries in the main build script and coming up with a workaround in the SDL2 finder to ensure -lmingw32 always came first in the link order.
88 lines
4.5 KiB
CMake
88 lines
4.5 KiB
CMake
# FindSDL2_mixer.cmake
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#
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# Copyright (c) 2018, Alex Mayfield <alexmax2742@gmail.com>
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the <organization> nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# Currently works with the following generators:
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# - Unix Makefiles (Linux, MSYS2)
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# - Ninja (Linux, MSYS2)
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# - Visual Studio
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# Cache variable that allows you to point CMake at a directory containing
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# an extracted development library.
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set(SDL2_MIXER_DIR "${SDL2_MIXER_DIR}" CACHE PATH "Location of SDL2_mixer library directory")
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# Use pkg-config to find library locations in *NIX environments.
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find_package(PkgConfig QUIET)
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if(PKG_CONFIG_FOUND)
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pkg_search_module(PC_SDL2_MIXER QUIET SDL2_mixer)
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endif()
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# Find the include directory.
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find_path(SDL2_MIXER_INCLUDE_DIR "SDL_mixer.h"
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HINTS "${SDL2_MIXER_DIR}/include" ${PC_SDL2_MIXER_INCLUDE_DIRS})
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# Find the version. Taken and modified from CMake's FindSDL.cmake.
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if(SDL2_MIXER_INCLUDE_DIR AND EXISTS "${SDL2_MIXER_INCLUDE_DIR}/SDL_mixer.h")
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file(STRINGS "${SDL2_MIXER_INCLUDE_DIR}/SDL_mixer.h" SDL2_MIXER_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_MIXER_MAJOR_VERSION[ \t]+[0-9]+$")
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file(STRINGS "${SDL2_MIXER_INCLUDE_DIR}/SDL_mixer.h" SDL2_MIXER_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_MIXER_MINOR_VERSION[ \t]+[0-9]+$")
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file(STRINGS "${SDL2_MIXER_INCLUDE_DIR}/SDL_mixer.h" SDL2_MIXER_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_MIXER_PATCHLEVEL[ \t]+[0-9]+$")
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string(REGEX REPLACE "^#define[ \t]+SDL_MIXER_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_MIXER_VERSION_MAJOR "${SDL2_MIXER_VERSION_MAJOR_LINE}")
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string(REGEX REPLACE "^#define[ \t]+SDL_MIXER_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_MIXER_VERSION_MINOR "${SDL2_MIXER_VERSION_MINOR_LINE}")
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string(REGEX REPLACE "^#define[ \t]+SDL_MIXER_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_MIXER_VERSION_PATCH "${SDL2_MIXER_VERSION_PATCH_LINE}")
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set(SDL2_MIXER_VERSION "${SDL2_MIXER_VERSION_MAJOR}.${SDL2_MIXER_VERSION_MINOR}.${SDL2_MIXER_VERSION_PATCH}")
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unset(SDL2_MIXER_VERSION_MAJOR_LINE)
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unset(SDL2_MIXER_VERSION_MINOR_LINE)
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unset(SDL2_MIXER_VERSION_PATCH_LINE)
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unset(SDL2_MIXER_VERSION_MAJOR)
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unset(SDL2_MIXER_VERSION_MINOR)
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unset(SDL2_MIXER_VERSION_PATCH)
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endif()
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# Find the library.
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if(CMAKE_SIZEOF_VOID_P STREQUAL 8)
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find_library(SDL2_MIXER_LIBRARY "SDL2_mixer"
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HINTS "${SDL2_MIXER_DIR}/lib/x64" ${PC_SDL2_MIXER_LIBRARY_DIRS})
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else()
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find_library(SDL2_MIXER_LIBRARY "SDL2_mixer"
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HINTS "${SDL2_MIXER_DIR}/lib/x86" ${PC_SDL2_MIXER_LIBRARY_DIRS})
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endif()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(SDL2_mixer
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FOUND_VAR SDL2_MIXER_FOUND
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REQUIRED_VARS SDL2_MIXER_INCLUDE_DIR SDL2_MIXER_LIBRARY
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VERSION_VAR SDL2_MIXER_VERSION
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)
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if(SDL2_MIXER_FOUND)
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# Imported target.
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add_library(SDL2::mixer UNKNOWN IMPORTED)
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set_target_properties(SDL2::mixer PROPERTIES
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INTERFACE_COMPILE_OPTIONS "${PC_SDL2_MIXER_CFLAGS_OTHER}"
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INTERFACE_INCLUDE_DIRECTORIES "${SDL2_MIXER_INCLUDE_DIR}"
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INTERFACE_LINK_LIBRARIES SDL2::SDL2
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IMPORTED_LOCATION "${SDL2_MIXER_LIBRARY}")
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endif()
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