- backend update from Raze.

Progdir stuff for POSIX.

src/CMakeLists.txt

@@ -468,9 +468,15 @@ elseif( APPLE )
 	set_source_files_properties( posix/osx/zdoom.icns PROPERTIES MACOSX_PACKAGE_LOCATION Resources )
 	set_source_files_properties( common/platform/posix/osx/iwadpicker_cocoa.mm PROPERTIES COMPILE_FLAGS -fobjc-exceptions )
 else()
+	option (SYSTEMINSTALL "Set global progdir based on CMake Install Dir" OFF)
+
 	set( SYSTEM_SOURCES_DIR common/platform/posix common/platform/posix/sdl )
 	set( SYSTEM_SOURCES ${PLAT_POSIX_SOURCES} ${PLAT_SDL_SOURCES} ${PLAT_UNIX_SOURCES} )
 	set( OTHER_SYSTEM_SOURCES ${PLAT_WIN32_SOURCES} ${PLAT_OSX_SOURCES} ${PLAT_COCOA_SOURCES} )
+
+	if ( SYSTEMINSTALL )
+		add_definitions( -DPROGDIR="${CMAKE_INSTALL_PREFIX}/${INSTALL_PK3_PATH}" )
+	endif()
 endif()
 
 if( HAVE_MMX )

src/common/platform/posix/sdl/i_main.cpp

@@ -174,7 +174,9 @@ int main (int argc, char **argv)
 
 	Args = new FArgs(argc, argv);
 
-	// Should we even be doing anything with progdir on Unix systems?
+#ifdef PROGDIR
+	progdir = PROGDIR;
+#else
 	char program[PATH_MAX];
 	if (realpath (argv[0], program) == NULL)
 		strcpy (program, argv[0]);
@@ -188,6 +190,7 @@ int main (int argc, char **argv)
 	{
 		progdir = "./";
 	}
+#endif
 
 	I_StartupJoysticks();