From: Julian Ospald <hasufell@gentoo.org>
Date: Fri Oct  5 13:33:05 UTC 2012

make build system gentoo-compatible
provide options for SDL and GLFW video drivers

--- CMakeLists.txt
+++ CMakeLists.txt
@@ -19,12 +19,19 @@
 
 ################################################################################
 
-INCLUDE(cmake/crosscompile.cmake)
-
 PROJECT(s25client)
 
 ################################################################################
 
+# options
+OPTION(BUILD_GLFW_DRIVER "Build the GLFW video driver" 0)
+OPTION(BUILD_SDL_DRIVER "Build the sdl video driver" 1)
+IF (UNIX)
+	IF (NOT BUILD_SDL_DRIVER AND NOT BUILD_GLFW_DRIVER)
+		MESSAGE(FATAL_ERROR "No video driver selected! Either use SDL or GLFW.")
+	ENDIF (NOT BUILD_SDL_DRIVER AND NOT BUILD_GLFW_DRIVER)
+ENDIF (UNIX)
+
 SET(PREFIX ${PREFIX} CACHE STRING "Path prefix")
 SET(BINDIR ${BINDIR} CACHE STRING "Directory for the binaries")
 SET(DATADIR ${DATADIR} CACHE STRING "Data directory")
@@ -106,38 +113,6 @@
 			   build_paths.h)
 CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/build_version.h.cmake"
 			   build_version.h)
-CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/build/preinstall.sh.cmake"
-			   preinstall.sh @ONLY)
-CONFIGURE_FILE("${CMAKE_CURRENT_SOURCE_DIR}/build/postinstall.sh.cmake"
-			   postinstall.sh @ONLY)
-
-################################################################################
-
-ADD_SUBDIRECTORY(version)
-
-ADD_CUSTOM_TARGET(updateversion ALL
-				  COMMAND "${CMAKE_BINARY_DIR}/version/src/version" "${CMAKE_SOURCE_DIR}"
-				  DEPENDS version
-				  WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
-)
-
-ADD_CUSTOM_TARGET(mrproper
-				  COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/build/cleanup.sh"
-				  WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}"
-)
-
-ADD_CUSTOM_TARGET(create_nightly
-				  COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/release/create_release.sh" "nightly" "${CMAKE_SOURCE_DIR}"
-				  WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
-)
-
-ADD_CUSTOM_TARGET(create_stable
-				  COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/release/create_release.sh" "stable" "${CMAKE_SOURCE_DIR}"
-				  WORKING_DIRECTORY "${CMAKE_BINARY_DIR}"
-)
-
-# preinstall script
-INSTALL(SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/cmake/preinstall.cmake")
 
 ################################################################################
 
@@ -148,7 +123,6 @@
 ADD_SUBDIRECTORY(libutil)
 ADD_SUBDIRECTORY(liblobby)
 ADD_SUBDIRECTORY(s-c)
-ADD_SUBDIRECTORY(s25update)
 ADD_SUBDIRECTORY(src)
 
 ################################################################################
@@ -157,7 +131,6 @@
 INSTALL(CODE "INCLUDE(driver/cmake_install.cmake)")
 INSTALL(CODE "INCLUDE(libsiedler2/cmake_install.cmake)")
 INSTALL(CODE "INCLUDE(s-c/cmake_install.cmake)")
-INSTALL(CODE "INCLUDE(s25update/cmake_install.cmake)")
 INSTALL(CODE "INCLUDE(src/cmake_install.cmake)")
 
 # and then dont let him install anything
--- driver/video/CMakeLists.txt
+++ driver/video/CMakeLists.txt
@@ -3,7 +3,11 @@
 #################################################################################
 
 ADD_SUBDIRECTORY( WinAPI )
-ADD_SUBDIRECTORY( GLFW )
-ADD_SUBDIRECTORY( SDL )
+IF(BUILD_GLFW_DRIVER)
+	ADD_SUBDIRECTORY( GLFW )
+ENDIF(BUILD_GLFW_DRIVER)
+IF(BUILD_SDL_DRIVER)
+	ADD_SUBDIRECTORY( SDL )
+ENDIF(BUILD_SDL_DRIVER)
 
 #################################################################################
--- driver/video/SDL/src/CMakeLists.txt
+++ driver/video/SDL/src/CMakeLists.txt
@@ -30,9 +30,9 @@
 	ADD_CUSTOM_COMMAND(TARGET videoSDL POST_BUILD COMMAND ln -fvs SDL/src/${SL_PREFIX}videoSDL${CMAKE_SHARED_LIBRARY_SUFFIX} ../../videoSDL${CMAKE_SHARED_LIBRARY_SUFFIX})
 	
 	INSTALL(TARGETS videoSDL 
-		RUNTIME DESTINATION ${LIBDIR}/driver/video 
-		LIBRARY DESTINATION ${LIBDIR}/driver/video
-		ARCHIVE DESTINATION ${LIBDIR}/driver/video
+		RUNTIME DESTINATION ${LIBDIR} 
+		LIBRARY DESTINATION ${LIBDIR}
+		ARCHIVE DESTINATION ${LIBDIR}
 	)
 ELSE (SDL_FOUND)
 	MESSAGE(WARNING ": SDL library not found: Not building SDL videodriver")
--- driver/video/GLFW/src/CMakeLists.txt
+++ driver/video/GLFW/src/CMakeLists.txt
@@ -2,7 +2,7 @@
 ### $Id$
 #################################################################################
 
-IF ("${COMPILEFOR}/${COMPILEARCH}" STREQUAL "linux/i386" )
+IF ("${COMPILEFOR}" STREQUAL "linux" )
 	FIND_LIBRARY(GLFW_LIBRARY glfw) 
 	
 	IF (GLFW_LIBRARY)
@@ -21,6 +21,6 @@
 	ELSE (GLFW_LIBRARY)
 		MESSAGE(WARNING ": GLFW library not found: Not building GLFW videodriver")
 	ENDIF (GLFW_LIBRARY)
-ENDIF ("${COMPILEFOR}/${COMPILEARCH}" STREQUAL "linux/i386" )
+ENDIF ("${COMPILEFOR}" STREQUAL "linux" )
 
 #################################################################################
--- driver/audio/SDL/src/CMakeLists.txt
+++ driver/audio/SDL/src/CMakeLists.txt
@@ -34,9 +34,9 @@
         ADD_CUSTOM_COMMAND(TARGET audioSDL POST_BUILD COMMAND ln -fvs SDL/src/${SL_PREFIX}audioSDL${CMAKE_SHARED_LIBRARY_SUFFIX} ../../audioSDL${CMAKE_SHARED_LIBRARY_SUFFIX})
 
         INSTALL(TARGETS audioSDL 
-            RUNTIME DESTINATION ${LIBDIR}/driver/audio 
-            LIBRARY DESTINATION ${LIBDIR}/driver/audio
-            ARCHIVE DESTINATION ${LIBDIR}/driver/audio
+            RUNTIME DESTINATION ${LIBDIR} 
+            LIBRARY DESTINATION ${LIBDIR}
+            ARCHIVE DESTINATION ${LIBDIR}
         )
     ELSE (SDLMIXER_FOUND)
         MESSAGE(WARNING ": SDL_mixer library not found: Not building SDL audiodriver")
--- build_paths.h.cmake
+++ build_paths.h.cmake
@@ -41,6 +41,7 @@
 
 //	set game directory (normal $(datadir)/s25rttr/S2)
 //#define GAMEDIR DATADIR"/S2"
+#cmakedefine GAMEDIR "${GAMEDIR}"
 
 //	set driver directory (normal $(libdir)/driver)
 //#define DRIVERDIR LIBDIR"/driver"