FindSteamworks.cmake - quick and dirty CMake support for the Steamworks SDK

gistfile1.txt

# Locate Steamworks library
# This module defines
# STEAMWORKS_LIBRARY, the name of the library to link against
# STEAMWORKS_INCLUDE_DIR, the directory containing steam/steam_api.h
# STEAMWORKS_FOUND, if false, do not try to link to Steamworks
#
# If a path is set in the SteamworksDIR environment variable it will check there
#
# This has been tested on OS X
# This may or may not with Linux - it should, but i think it could be broken easily
#

SET(STEAMWORKS_SEARCH_PATHS
  ~/Library/Frameworks
  /Library/Frameworks
  /usr/local
  /usr
  /sw # Fink
  /opt/local # DarwinPorts
  /opt/csw # Blastwave
  /opt
)

SET (STEAMWORKS_SEARCH_PREFIXES
	lib 
	lib64
)

IF (APPLE)
	SET (STEAMWORKS_SEARCH_PREFIXES ${STEAMWORKS_SEARCH_PREFIXES}
		redistributable_bin/osx32/
	) 
ELSEIF (UNIX)
  IF( CMAKE_SYSTEM_PROCESSOR MATCHES "i.86" )
    SET( BUILD_ARCH "32" )
  ELSEIF( CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64")
    SET( BUILD_ARCH "64" )
  ENDIF()
  SET (STEAMWORKS_SEARCH_PREFIXES ${STEAMWORKS_SEARCH_PREFIXES} redistributable_bin/linux${BUILD_ARCH}/ )
ENDIF()

FIND_PATH(STEAMWORKS_INCLUDE_DIR steam/steam_api.h
  HINTS
  $ENV{SteamworksDIR}
  PATH_SUFFIXES public/ include/ Include/
  PATHS ${STEAMWORKS_SEARCH_PATHS}
)

FIND_LIBRARY(STEAMWORKS_LIBRARY_TEMP
  NAMES steam_api
  HINTS
  $ENV{SteamworksDIR}
  PATH_SUFFIXES ${STEAMWORKS_SEARCH_PREFIXES}
  PATHS ${STEAMWORKS_SEARCH_PATHS}
)

IF(STEAMWORKS_LIBRARY_TEMP)
  # Set the final string here so the GUI reflects the final state.
  SET(STEAMWORKS_LIBRARY ${STEAMWORKS_LIBRARY_TEMP} CACHE STRING "Where the Steamworks Library can be found")
  # Set the temp variable to INTERNAL so it is not seen in the CMake GUI
  SET(STEAMWORKS_LIBRARY_TEMP "${STEAMWORKS_LIBRARY_TEMP}" CACHE INTERNAL "")
ENDIF(STEAMWORKS_LIBRARY_TEMP)

INCLUDE(FindPackageHandleStandardArgs)

FIND_PACKAGE_HANDLE_STANDARD_ARGS(Steamworks REQUIRED_VARS STEAMWORKS_LIBRARY STEAMWORKS_INCLUDE_DIR)

Hey, Im still relativly new to working with CMake, I was wondering how I would implement this file. At the moment I put the file under

cmake/Modules/FindSteamworks.cmake

in the project root and then put this code in the main CMakeLists.txt

 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake/Modules/")

I don't know what I am missing, here is where I link libraries and I do not call any other Steamworks code from anywhere other than here

 include(FindPkgConfig)
 include(FindSteamworks)

 pkg_search_module(SDL2 REQUIRED sdl2)
 pkg_search_module(SDL2IMAGE REQUIRED SDL2_image>=2.0.0)
 pkg_search_module(SDL2NET REQUIRED SDL2_net>=2.0.0)
 pkg_search_module(SDL2MIXER REQUIRED SDL2_mixer>=2.0.0)
 pkg_search_module(SDL2TTF REQUIRED SDL2_ttf>=2.0.0)

 include_directories(
     Somnia
     Include
 )

 target_link_libraries(Somnia
     ${SDL2_LIBRARIES}
     ${SDL2IMAGE_LIBRARIES}
     ${SDL2NET_LIBRARIES}
     ${SDL2MIXER_LIBRARIES}
     ${SDL2TTF_LIBRARIES}
     ${STEAMWORKS_LIBRARY}
 )