Added: Steam CMake module

--HG--
branch : develop

code/CMakeModules/FindSteam.cmake

@@ -0,0 +1,74 @@
+# - Locate Steam API
+# This module defines
+#  STEAM_LIBRARY, the library to link against
+#  STEAM_FOUND, if false, do not try to link to STEAM
+#  STEA%_INCLUDE_DIR, where to find headers.
+
+IF(STEAM_LIBRARY AND STEAM_INCLUDE_DIR)
+  # in cache already
+  SET(Steam_FIND_QUIETLY TRUE)
+ENDIF()
+
+
+FIND_PATH(STEAM_INCLUDE_DIR
+  steam_api.h
+  PATH_SUFFIXES steam
+  PATHS
+  $ENV{STEAM_DIR}/public
+)
+
+IF(WIN32)
+  IF(TARGET_X64)
+    SET(STEAM_LIBNAME steam_api64)
+    SET(STEAM_RUNTIMENAME steam_api64.dll)
+    SET(STEAM_PATHNAME redistributable_bin/win64)
+  ELSE()
+    SET(STEAM_LIBNAME steam_api)
+    SET(STEAM_RUNTIMENAME steam_api.dll)
+    SET(STEAM_PATHNAME redistributable_bin)
+  ENDIF()
+ELSEIF(APPLE)
+  # universal binary
+  SET(STEAM_LIBNAME steam_api)
+  SET(STEAM_RUNTIMENAME libsteam_api.dylib)
+  SET(STEAM_PATHNAME redistributable_bin/osx32)
+ELSE()
+  SET(STEAM_LIBNAME steam_api)
+  SET(STEAM_RUNTIMENAME libsteam_api.so)
+  IF(TARGET_X64)
+    SET(STEAM_PATHNAME redistributable_bin/linux64)
+  ELSE()
+    SET(STEAM_PATHNAME redistributable_bin/linux32)
+  ENDIF()
+ENDIF()
+
+FIND_LIBRARY(STEAM_LIBRARY
+  NAMES ${STEAM_LIBNAME}
+  HINTS
+  $ENV{STEAM_DIR}/${STEAM_PATHNAME}
+)
+
+FIND_FILE(STEAM_RUNTIME
+  NAMES ${STEAM_RUNTIMENAME}
+  HINTS
+  $ENV{STEAM_DIR}/${STEAM_PATHNAME}
+  PATHS
+  ${EXTERNAL_BINARY_PATH}
+  ${CMAKE_LIBRARY_PATH}
+  /usr/local/lib
+  /usr/lib
+)
+
+# Don't need to check STEAM_LIBRARY because we're dynamically loading Steam DLL
+IF(STEAM_INCLUDE_DIR)
+  SET(STEAM_FOUND ON)
+  SET(STEAM_LIBRARIES ${STEAM_LIBRARY})
+  SET(STEAM_INCLUDE_DIRS ${STEAM_INCLUDE_DIR})
+  IF(NOT Steam_FIND_QUIETLY)
+    MESSAGE(STATUS "Found Steam: ${STEAM_INCLUDE_DIR} and ${STEAM_RUNTIME}")
+  ENDIF()
+ELSE()
+  IF(NOT Steam_FIND_QUIETLY)
+    MESSAGE(STATUS "Warning: Unable to find Steam!")
+  ENDIF()
+ENDIF()