cmake_modules/FindSDL2_net.cmake
author Wuzzy <Wuzzy2@mail.ru>
Wed, 25 Oct 2017 23:09:41 +0200
changeset 12768 ad67a3804981
parent 12388 e3d9abcc427a
permissions -rw-r--r--
Fix sometimes ammo schemes not being saved after changing before an ammo scheme got deleted in session This was because the bool isDeleting is not initialized, so its initial value is unpredictable. Which means there's chance it starts with true, confusing the frontend.

# - Locate SDL2_net library
# This module defines:
#  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 compatiblity the following variables are also set:
#  SDL2NET_LIBRARY (same value as SDL2_NET_LIBRARIES)
#  SDL2NET_INCLUDE_DIR (same value as SDL2_NET_INCLUDE_DIRS)
#  SDL2NET_FOUND (same value as SDL2_NET_FOUND)
#
# $SDL2DIR is an environment variable that would
# correspond to the ./configure --prefix=$SDL2DIR
# used in building SDL2.
#
# Created by Eric Wing. This was influenced by the FindSDL2.cmake
# module, but with modifications to recognize OS X frameworks and
# additional Unix paths (FreeBSD, etc).

#=============================================================================
# Copyright 2005-2009 Kitware, Inc.
# Copyright 2012 Benjamin Eikel
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
#  License text for the above reference.)

if(NOT SDL2_NET_INCLUDE_DIR AND SDL2NET_INCLUDE_DIR)
  set(SDL2_NET_INCLUDE_DIR ${SDL2NET_INCLUDE_DIR} CACHE PATH "directory cache
entry initialized from old variable name")
endif()
find_path(SDL2_NET_INCLUDE_DIR SDL_net.h
  HINTS
    ENV SDL2NETDIR
    ENV SDL2DIR
  PATH_SUFFIXES include/SDL2 include
)

if(NOT SDL2_NET_LIBRARY AND SDL2NET_LIBRARY)
  set(SDL2_NET_LIBRARY ${SDL2NET_LIBRARY} CACHE FILEPATH "file cache entry
initialized from old variable name")
endif()
find_library(SDL2_NET_LIBRARY
  NAMES SDL2_net
  HINTS
    ENV SDL2NETDIR
    ENV SDL2DIR
  PATH_SUFFIXES lib
)

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(SDL2_NET_LIBRARIES ${SDL2_NET_LIBRARY})
set(SDL2_NET_INCLUDE_DIRS ${SDL2_NET_INCLUDE_DIR})

if(BUILD_ENGINE_JS)
    set(SDL2_NET_LIBRARY "sdl2_net_emscripten_internal")
    set(SDL2_NET_LIBRARIES "sdl2_net_emscripten_internal")
    set(SDL2_NET_INCLUDE_DIRS "${CMAKE_SYSTEM_INCLUDE_PATH}/SDL")
endif()

include(FindPackageHandleStandardArgs)

FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_net
                                  REQUIRED_VARS SDL2_NET_LIBRARIES SDL2_NET_INCLUDE_DIRS
                                  VERSION_VAR SDL2_NET_VERSION_STRING)

# for backward compatiblity
set(SDLNET_LIBRARY ${SDL2_NET_LIBRARIES})
set(SDLNET_INCLUDE_DIR ${SDL2_NET_INCLUDE_DIRS})
set(SDLNET_FOUND ${SDL2_NET_FOUND})

mark_as_advanced(SDL2_NET_LIBRARY SDL2_NET_INCLUDE_DIR)