我正在对SDL2中的Wolfenstein 3D引擎进行修改（使用Wolf4SDL作为基础），但是遇到了一个问题-在链接器选项中使用-static时，我得到了很多未定义的对各种事物的引用。这是我的构建日志，以显示我的意思：
-------------- Build: Debug in Lazarus (compiler: GNU GCC Compiler)---------------
i686-w64-mingw32-g++.exe -LC:\SDL2\lib -o Lazarus.exe .objs\alu_cache.o .objs\alu_dbg_mem.o .objs\alu_gfx.o .objs\alu_hud.o .objs\alu_in.o .objs\alu_me_core.o .objs\alu_me_gui.o .objs\alu_me_symbols.o .objs\alu_me_textinput.o .objs\alu_me_tools.o .objs\alu_me_windows.o .objs\alu_menu.o .objs\alu_pak.o .objs\alu_particles.o .objs\asmcomp.o .objs\id_us_1.o .objs\vieasm.o .objs\wl_act1.o .objs\wl_act2.o .objs\wl_agent.o .objs\wl_debug.o .objs\wl_dir3dspr.o .objs\wl_draw.o .objs\wl_floorceiling.o .objs\wl_game.o .objs\wl_inter.o .objs\wl_main.o .objs\wl_play.o .objs\wl_state.o .objs\wl_text.o -static -pg -lgmon -lmingw32 -lSDL2main -lSDL2 -lSDL2_image -lSDL2_mixer -mwindows
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `timeSetPeriod':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:58: undefined reference to `_imp__timeBeginPeriod@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:52: undefined reference to `_imp__timeEndPeriod@4'
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:58: undefined reference to `_imp__timeBeginPeriod@4'
C:\SDL2\lib\libSDL2.a(SDL_systimer.o): In function `SDL_TicksInit':
/Users/slouken/release/SDL/SDL2-2.0.3-source/foo-x86/../src/timer/windows/SDL_systimer.c:106: undefined reference …