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FindSDL: Use SDL_IMAGE prefix for varibales

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This makes FindPackageHandleStandardArgs and FeatureSummary work correctly.
Keep old variables for compatibility.
Furthermore, format the documentation.
This commit is contained in:
Benjamin Eikel 2012-09-04 13:35:55 +02:00 committed by Brad King
parent ef5b439cc1
commit 2c3b8255c5
1 changed files with 40 additions and 25 deletions
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65
Modules/FindSDL_image.cmake
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@ -1,9 +1,14 @@
# Locate SDL_image library # - Locate SDL_image library
# This module defines # This module defines:
# SDLIMAGE_LIBRARY, the name of the library to link against # SDL_IMAGE_LIBRARIES, the name of the library to link against
# SDLIMAGE_FOUND, if false, do not try to link to SDL # SDL_IMAGE_INCLUDE_DIRS, where to find the headers
# SDLIMAGE_INCLUDE_DIR, where to find SDL/SDL.h # SDL_IMAGE_FOUND, if false, do not try to link against
# SDLIMAGE_VERSION_STRING - human-readable string containing the version of SDL_image # SDL_IMAGE_VERSION_STRING - human-readable string containing the version of SDL_image
#
# For backward compatiblity 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 # $SDLDIR is an environment variable that would
# correspond to the ./configure --prefix=$SDLDIR # correspond to the ./configure --prefix=$SDLDIR
@ -26,7 +31,7 @@
# (To distribute this file outside of CMake, substitute the full # (To distribute this file outside of CMake, substitute the full
# License text for the above reference.) # License text for the above reference.)
find_path(SDLIMAGE_INCLUDE_DIR SDL_image.h find_path(SDL_IMAGE_INCLUDE_DIR SDL_image.h
HINTS HINTS
ENV SDLIMAGEDIR ENV SDLIMAGEDIR
ENV SDLDIR ENV SDLDIR
@ -44,7 +49,7 @@ find_path(SDLIMAGE_INCLUDE_DIR SDL_image.h
/opt /opt
) )
find_library(SDLIMAGE_LIBRARY find_library(SDL_IMAGE_LIBRARY
NAMES SDL_image NAMES SDL_image
HINTS HINTS
ENV SDLIMAGEDIR ENV SDLIMAGEDIR
@ -59,24 +64,34 @@ find_library(SDLIMAGE_LIBRARY
/opt /opt
) )
if(SDLIMAGE_INCLUDE_DIR AND EXISTS "${SDLIMAGE_INCLUDE_DIR}/SDL_image.h") if(SDL_IMAGE_INCLUDE_DIR AND EXISTS "${SDL_IMAGE_INCLUDE_DIR}/SDL_image.h")
file(STRINGS "${SDLIMAGE_INCLUDE_DIR}/SDL_image.h" SDLIMAGE_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_MAJOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+[0-9]+$")
file(STRINGS "${SDLIMAGE_INCLUDE_DIR}/SDL_image.h" SDLIMAGE_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_MINOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+[0-9]+$")
file(STRINGS "${SDLIMAGE_INCLUDE_DIR}/SDL_image.h" SDLIMAGE_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \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" SDLIMAGE_VERSION_MAJOR "${SDLIMAGE_VERSION_MAJOR_LINE}") string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_IMAGE_VERSION_MAJOR "${SDL_IMAGE_VERSION_MAJOR_LINE}")
string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDLIMAGE_VERSION_MINOR "${SDLIMAGE_VERSION_MINOR_LINE}") string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_IMAGE_VERSION_MINOR "${SDL_IMAGE_VERSION_MINOR_LINE}")
string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDLIMAGE_VERSION_PATCH "${SDLIMAGE_VERSION_PATCH_LINE}") string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL_IMAGE_VERSION_PATCH "${SDL_IMAGE_VERSION_PATCH_LINE}")
set(SDLIMAGE_VERSION_STRING ${SDLIMAGE_VERSION_MAJOR}.${SDLIMAGE_VERSION_MINOR}.${SDLIMAGE_VERSION_PATCH}) set(SDL_IMAGE_VERSION_STRING ${SDL_IMAGE_VERSION_MAJOR}.${SDL_IMAGE_VERSION_MINOR}.${SDL_IMAGE_VERSION_PATCH})
unset(SDLIMAGE_VERSION_MAJOR_LINE) unset(SDL_IMAGE_VERSION_MAJOR_LINE)
unset(SDLIMAGE_VERSION_MINOR_LINE) unset(SDL_IMAGE_VERSION_MINOR_LINE)
unset(SDLIMAGE_VERSION_PATCH_LINE) unset(SDL_IMAGE_VERSION_PATCH_LINE)
unset(SDLIMAGE_VERSION_MAJOR) unset(SDL_IMAGE_VERSION_MAJOR)
unset(SDLIMAGE_VERSION_MINOR) unset(SDL_IMAGE_VERSION_MINOR)
unset(SDLIMAGE_VERSION_PATCH) unset(SDL_IMAGE_VERSION_PATCH)
endif() endif()
set(SDL_IMAGE_LIBRARIES ${SDL_IMAGE_LIBRARY})
set(SDL_IMAGE_INCLUDE_DIRS ${SDL_IMAGE_INCLUDE_DIR})
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDLIMAGE FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL_image
REQUIRED_VARS SDLIMAGE_LIBRARY SDLIMAGE_INCLUDE_DIR REQUIRED_VARS SDL_IMAGE_LIBRARIES SDL_IMAGE_INCLUDE_DIRS
VERSION_VAR SDLIMAGE_VERSION_STRING) VERSION_VAR SDL_IMAGE_VERSION_STRING)
# for backward compatiblity
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)