[cmake] Use same executable names as Makefile

src/sdl/CMakeLists.txt

@@ -140,7 +140,13 @@ if(${SDL2_FOUND})
 	endif()
 
 	add_executable(SRB2SDL2 MACOSX_BUNDLE WIN32 ${SRB2_SDL2_TOTAL_SOURCES})
-	set_target_properties(SRB2SDL2 PROPERTIES OUTPUT_NAME ${SRB2_SDL2_EXE_NAME})
+	if(${CMAKE_SYSTEM} MATCHES Windows)
+		set_target_properties(SRB2SDL2 PROPERTIES OUTPUT_NAME srb2win)
+	elseif(${CMAKE_SYSTEM} MATCHES Linux)
+		set_target_properties(SRB2SDL2 PROPERTIES OUTPUT_NAME lsdlsrb2)
+	else()
+		set_target_properties(SRB2SDL2 PROPERTIES OUTPUT_NAME srb2)
+	endif()
 
 	if(${CMAKE_SYSTEM} MATCHES Darwin)
 		find_library(CORE_LIB CoreFoundation)