diff --git a/FindSDL2_net.cmake b/FindSDL2_net.cmake index 28cb4d6..2571bad 100644 --- a/FindSDL2_net.cmake +++ b/FindSDL2_net.cmake @@ -2,51 +2,99 @@ # file Copyright.txt or https://cmake.org/licensing for details. #[=======================================================================[.rst: -FindSDL_net ------------ +FindSDL2_net +------------ -Locate SDL_net library +Locate SDL2_net library -This module defines: +This module will set the following variables in your project: :: - SDL_NET_LIBRARIES, the name of the library to link against - SDL_NET_INCLUDE_DIRS, where to find the headers - SDL_NET_FOUND, if false, do not try to link against - SDL_NET_VERSION_STRING - human-readable string containing the version of SDL_net + SDL2_NET_LIBRARIES, the name of the library to link against + SDL2_NET_INCLUDE_DIRS, where to find the headers + SDL2_NET_FOUND, if false, do not try to link against + SDL2_NET_VERSION_STRING - human-readable string containing the + version of SDL2_net -For backward compatibility the following variables are also set: +This module responds to the following cache variables: :: - SDLNET_LIBRARY (same value as SDL_NET_LIBRARIES) - SDLNET_INCLUDE_DIR (same value as SDL_NET_INCLUDE_DIRS) - SDLNET_FOUND (same value as SDL_NET_FOUND) + SDL2_NET_PATH + Set a custom SDL2_net Library path (default: empty) + + SDL2_NET_NO_DEFAULT_PATH + Disable search SDL2_net Library in default path. + If SDL2_NET_PATH (default: ON) + Else (default: OFF) + + SDL2_NET_INCLUDE_DIR + SDL2_net headers path. + + SDL2_NET_LIBRARY + SDL2_net Library (.dll, .so, .a, etc) path. + + +Additional Note: If you see an empty SDL2_NET_LIBRARY in your project +configuration, it means CMake did not find your SDL2_net library +(SDL2_net.dll, libsdl2_net.so, etc). Set SDL2_NET_LIBRARY to point +to your SDL2_net library, and configure again. This value is used to +generate the final SDL2_NET_LIBRARIES variable, but when this value is +unset, SDL2_NET_LIBRARIES does not get created. + + +$SDL2NETDIR is an environment variable that would correspond to the +./configure --prefix=$SDL2NETDIR used in building SDL2_net. + +$SDL2DIR is an environment variable that would correspond to the +./configure --prefix=$SDL2DIR used in building SDL2. -$SDLDIR is an environment variable that would correspond to the -./configure --prefix=$SDLDIR used in building SDL. +Created by Amine Ben Hassouna: + Adapt FindSDL_net.cmake to SDL2_net (FindSDL2_net.cmake). + Add cache variables for more flexibility: + SDL2_NET_PATH, SDL2_NET_NO_DEFAULT_PATH (for details, see doc above). -Created by Eric Wing. This was influenced by the FindSDL.cmake -module, but with modifications to recognize OS X frameworks and -additional Unix paths (FreeBSD, etc). +Original FindSDL_net.cmake module: + Created by Eric Wing. This was influenced by the FindSDL.cmake + module, but with modifications to recognize OS X frameworks and + additional Unix paths (FreeBSD, etc). #]=======================================================================] -if(NOT SDL_NET_INCLUDE_DIR AND SDLNET_INCLUDE_DIR) - set(SDL_NET_INCLUDE_DIR ${SDLNET_INCLUDE_DIR} CACHE PATH "directory cache -entry initialized from old variable name") +# Define options for searching SDL2_net Library in a custom path + +set(SDL2_NET_PATH "" CACHE STRING "Custom SDL2_net Library path") + +set(_SDL2_NET_NO_DEFAULT_PATH OFF) +if(SDL2_NET_PATH) + set(_SDL2_NET_NO_DEFAULT_PATH ON) endif() -find_path(SDL_NET_INCLUDE_DIR SDL_net.h + +set(SDL2_NET_NO_DEFAULT_PATH ${_SDL2_NET_NO_DEFAULT_PATH} + CACHE BOOL "Disable search SDL2_net Library in default path") +unset(_SDL2_NET_NO_DEFAULT_PATH) + +set(SDL2_NET_NO_DEFAULT_PATH_CMD) +if(SDL2_NET_NO_DEFAULT_PATH) + set(SDL2_NET_NO_DEFAULT_PATH_CMD NO_DEFAULT_PATH) +endif() + +# Search for the SDL2_net include directory +find_path(SDL2_NET_INCLUDE_DIR SDL_net.h HINTS - ENV SDLNETDIR - ENV SDLDIR - PATH_SUFFIXES SDL - # path suffixes to search inside ENV{SDLDIR} - include/SDL include/SDL12 include/SDL11 include + ENV SDL2NETDIR + ENV SDL2DIR + ${SDL2_NET_NO_DEFAULT_PATH_CMD} + PATH_SUFFIXES SDL2 + # path suffixes to search inside ENV{SDL2DIR} + # and ENV{SDL2NETDIR} + include/SDL2 include + PATHS ${SDL2_NET_PATH} + DOC "Where the SDL2_net headers can be found" ) if(CMAKE_SIZEOF_VOID_P EQUAL 8) @@ -55,46 +103,47 @@ else() set(VC_LIB_PATH_SUFFIX lib/x86) endif() -if(NOT SDL_NET_LIBRARY AND SDLNET_LIBRARY) - set(SDL_NET_LIBRARY ${SDLNET_LIBRARY} CACHE FILEPATH "file cache entry -initialized from old variable name") -endif() -find_library(SDL_NET_LIBRARY - NAMES SDL_net +# Search for the SDL2_net library +find_library(SDL2_NET_LIBRARY + NAMES SDL2_net HINTS - ENV SDLNETDIR - ENV SDLDIR + ENV SDL2NETDIR + ENV SDL2DIR + ${SDL2_NET_NO_DEFAULT_PATH_CMD} PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX} + PATHS ${SDL2_NET_PATH} + DOC "Where the SDL2_net Library can be found" ) -if(SDL_NET_INCLUDE_DIR AND EXISTS "${SDL_NET_INCLUDE_DIR}/SDL_net.h") - file(STRINGS "${SDL_NET_INCLUDE_DIR}/SDL_net.h" SDL_NET_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_NET_MAJOR_VERSION[ \t]+[0-9]+$") - file(STRINGS "${SDL_NET_INCLUDE_DIR}/SDL_net.h" SDL_NET_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_NET_MINOR_VERSION[ \t]+[0-9]+$") - file(STRINGS "${SDL_NET_INCLUDE_DIR}/SDL_net.h" SDL_NET_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_NET_PATCHLEVEL[ \t]+[0-9]+$") - string(REGEX REPLACE "^#define[ \t]+SDL_NET_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_NET_VERSION_MAJOR "${SDL_NET_VERSION_MAJOR_LINE}") - string(REGEX REPLACE "^#define[ \t]+SDL_NET_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_NET_VERSION_MINOR "${SDL_NET_VERSION_MINOR_LINE}") - string(REGEX REPLACE "^#define[ \t]+SDL_NET_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL_NET_VERSION_PATCH "${SDL_NET_VERSION_PATCH_LINE}") - set(SDL_NET_VERSION_STRING ${SDL_NET_VERSION_MAJOR}.${SDL_NET_VERSION_MINOR}.${SDL_NET_VERSION_PATCH}) - unset(SDL_NET_VERSION_MAJOR_LINE) - unset(SDL_NET_VERSION_MINOR_LINE) - unset(SDL_NET_VERSION_PATCH_LINE) - unset(SDL_NET_VERSION_MAJOR) - unset(SDL_NET_VERSION_MINOR) - unset(SDL_NET_VERSION_PATCH) +# Read SDL2_net version +if(SDL2_NET_INCLUDE_DIR AND EXISTS "${SDL2_NET_INCLUDE_DIR}/SDL_net.h") + file(STRINGS "${SDL2_NET_INCLUDE_DIR}/SDL_net.h" SDL2_NET_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_NET_MAJOR_VERSION[ \t]+[0-9]+$") + file(STRINGS "${SDL2_NET_INCLUDE_DIR}/SDL_net.h" SDL2_NET_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_NET_MINOR_VERSION[ \t]+[0-9]+$") + file(STRINGS "${SDL2_NET_INCLUDE_DIR}/SDL_net.h" SDL2_NET_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_NET_PATCHLEVEL[ \t]+[0-9]+$") + string(REGEX REPLACE "^#define[ \t]+SDL_NET_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_NET_VERSION_MAJOR "${SDL2_NET_VERSION_MAJOR_LINE}") + string(REGEX REPLACE "^#define[ \t]+SDL_NET_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_NET_VERSION_MINOR "${SDL2_NET_VERSION_MINOR_LINE}") + string(REGEX REPLACE "^#define[ \t]+SDL_NET_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_NET_VERSION_PATCH "${SDL2_NET_VERSION_PATCH_LINE}") + set(SDL2_NET_VERSION_STRING ${SDL2_NET_VERSION_MAJOR}.${SDL2_NET_VERSION_MINOR}.${SDL2_NET_VERSION_PATCH}) + unset(SDL2_NET_VERSION_MAJOR_LINE) + unset(SDL2_NET_VERSION_MINOR_LINE) + unset(SDL2_NET_VERSION_PATCH_LINE) + unset(SDL2_NET_VERSION_MAJOR) + unset(SDL2_NET_VERSION_MINOR) + unset(SDL2_NET_VERSION_PATCH) endif() -set(SDL_NET_LIBRARIES ${SDL_NET_LIBRARY}) -set(SDL_NET_INCLUDE_DIRS ${SDL_NET_INCLUDE_DIR}) +set(SDL2_NET_LIBRARIES ${SDL2_NET_LIBRARY}) +set(SDL2_NET_INCLUDE_DIRS ${SDL2_NET_INCLUDE_DIR}) include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) -FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL_net - REQUIRED_VARS SDL_NET_LIBRARIES SDL_NET_INCLUDE_DIRS - VERSION_VAR SDL_NET_VERSION_STRING) +FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_net + REQUIRED_VARS SDL2_NET_LIBRARIES SDL2_NET_INCLUDE_DIRS + VERSION_VAR SDL2_NET_VERSION_STRING) -# for backward compatibility -set(SDLNET_LIBRARY ${SDL_NET_LIBRARIES}) -set(SDLNET_INCLUDE_DIR ${SDL_NET_INCLUDE_DIRS}) -set(SDLNET_FOUND ${SDL_NET_FOUND}) -mark_as_advanced(SDL_NET_LIBRARY SDL_NET_INCLUDE_DIR) +mark_as_advanced(SDL2_NET_PATH + SDL2_NET_NO_DEFAULT_PATH + SDL2_NET_LIBRARY + SDL2_NET_INCLUDE_DIR) +