gbe_fork/cmake/share/cmake-3.27/Modules/FindSDL_image.cmake

98 lines
3.7 KiB
CMake

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