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102 lines
3.8 KiB
CMake
102 lines
3.8 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindSDL_image
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-------------
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Locate SDL_image library
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This module defines:
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::
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SDL_IMAGE_LIBRARIES, the name of the library to link against
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SDL_IMAGE_INCLUDE_DIRS, where to find the headers
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SDL_IMAGE_FOUND, if false, do not try to link against
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SDL_IMAGE_VERSION_STRING - human-readable string containing the
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version of SDL_image
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For backward compatibility the following variables are also set:
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::
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SDLIMAGE_LIBRARY (same value as SDL_IMAGE_LIBRARIES)
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SDLIMAGE_INCLUDE_DIR (same value as SDL_IMAGE_INCLUDE_DIRS)
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SDLIMAGE_FOUND (same value as SDL_IMAGE_FOUND)
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$SDLDIR is an environment variable that would correspond to the
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./configure --prefix=$SDLDIR used in building SDL.
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Created by Eric Wing. This was influenced by the FindSDL.cmake
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module, but with modifications to recognize OS X frameworks and
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additional Unix paths (FreeBSD, etc).
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#]=======================================================================]
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if(NOT SDL_IMAGE_INCLUDE_DIR AND SDLIMAGE_INCLUDE_DIR)
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set(SDL_IMAGE_INCLUDE_DIR ${SDLIMAGE_INCLUDE_DIR} CACHE PATH "directory cache
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entry initialized from old variable name")
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endif()
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find_path(SDL_IMAGE_INCLUDE_DIR SDL_image.h
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HINTS
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ENV SDLIMAGEDIR
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ENV SDLDIR
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PATH_SUFFIXES SDL
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# path suffixes to search inside ENV{SDLDIR}
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include/SDL include/SDL12 include/SDL11 include
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)
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(VC_LIB_PATH_SUFFIX lib/x64)
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else()
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set(VC_LIB_PATH_SUFFIX lib/x86)
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endif()
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if(NOT SDL_IMAGE_LIBRARY AND SDLIMAGE_LIBRARY)
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set(SDL_IMAGE_LIBRARY ${SDLIMAGE_LIBRARY} CACHE FILEPATH "file cache entry
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initialized from old variable name")
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endif()
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find_library(SDL_IMAGE_LIBRARY
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NAMES SDL_image
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HINTS
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ENV SDLIMAGEDIR
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ENV SDLDIR
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PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
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)
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if(SDL_IMAGE_INCLUDE_DIR AND EXISTS "${SDL_IMAGE_INCLUDE_DIR}/SDL_image.h")
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file(STRINGS "${SDL_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL_IMAGE_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+[0-9]+$")
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file(STRINGS "${SDL_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL_IMAGE_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+[0-9]+$")
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file(STRINGS "${SDL_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL_IMAGE_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+[0-9]+$")
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string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_IMAGE_VERSION_MAJOR "${SDL_IMAGE_VERSION_MAJOR_LINE}")
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string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_IMAGE_VERSION_MINOR "${SDL_IMAGE_VERSION_MINOR_LINE}")
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string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL_IMAGE_VERSION_PATCH "${SDL_IMAGE_VERSION_PATCH_LINE}")
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set(SDL_IMAGE_VERSION_STRING ${SDL_IMAGE_VERSION_MAJOR}.${SDL_IMAGE_VERSION_MINOR}.${SDL_IMAGE_VERSION_PATCH})
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unset(SDL_IMAGE_VERSION_MAJOR_LINE)
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unset(SDL_IMAGE_VERSION_MINOR_LINE)
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unset(SDL_IMAGE_VERSION_PATCH_LINE)
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unset(SDL_IMAGE_VERSION_MAJOR)
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unset(SDL_IMAGE_VERSION_MINOR)
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unset(SDL_IMAGE_VERSION_PATCH)
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endif()
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set(SDL_IMAGE_LIBRARIES ${SDL_IMAGE_LIBRARY})
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set(SDL_IMAGE_INCLUDE_DIRS ${SDL_IMAGE_INCLUDE_DIR})
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include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL_image
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REQUIRED_VARS SDL_IMAGE_LIBRARIES SDL_IMAGE_INCLUDE_DIRS
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VERSION_VAR SDL_IMAGE_VERSION_STRING)
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# for backward compatibility
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set(SDLIMAGE_LIBRARY ${SDL_IMAGE_LIBRARIES})
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set(SDLIMAGE_INCLUDE_DIR ${SDL_IMAGE_INCLUDE_DIRS})
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set(SDLIMAGE_FOUND ${SDL_IMAGE_FOUND})
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mark_as_advanced(SDL_IMAGE_LIBRARY SDL_IMAGE_INCLUDE_DIR)
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