~/SDL-1.2.14/ $ make
/bin/bash config.status Makefile
config.status: creating Makefile
Warning, configure.in is out of date
#(cd . && sh autogen.sh && sh configure)
/bin/bash build-scripts/mkinstalldirs build
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/SDL.c -o build/SDL.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/SDL.c -fPIC -DPIC -o build/.libs/SDL.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/SDL.c -o build/SDL.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/SDL_error.c -o build/SDL_error.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/SDL_error.c -fPIC -DPIC -o build/.libs/SDL_error.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/SDL_error.c -o build/SDL_error.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/SDL_fatal.c -o build/SDL_fatal.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/SDL_fatal.c -fPIC -DPIC -o build/.libs/SDL_fatal.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/SDL_fatal.c -o build/SDL_fatal.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_audio.c -o build/SDL_audio.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_audio.c -fPIC -DPIC -o build/.libs/SDL_audio.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_audio.c -o build/SDL_audio.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_audiocvt.c -o build/SDL_audiocvt.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_audiocvt.c -fPIC -DPIC -o build/.libs/SDL_audiocvt.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_audiocvt.c -o build/SDL_audiocvt.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_audiodev.c -o build/SDL_audiodev.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_audiodev.c -fPIC -DPIC -o build/.libs/SDL_audiodev.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_audiodev.c -o build/SDL_audiodev.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer.c -o build/SDL_mixer.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer.c -fPIC -DPIC -o build/.libs/SDL_mixer.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer.c -o build/SDL_mixer.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer_MMX.c -o build/SDL_mixer_MMX.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer_MMX.c -fPIC -DPIC -o build/.libs/SDL_mixer_MMX.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer_MMX.c -o build/SDL_mixer_MMX.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer_MMX_VC.c -o build/SDL_mixer_MMX_VC.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer_MMX_VC.c -fPIC -DPIC -o build/.libs/SDL_mixer_MMX_VC.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer_MMX_VC.c -o build/SDL_mixer_MMX_VC.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer_m68k.c -o build/SDL_mixer_m68k.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer_m68k.c -fPIC -DPIC -o build/.libs/SDL_mixer_m68k.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_mixer_m68k.c -o build/SDL_mixer_m68k.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_wave.c -o build/SDL_wave.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_wave.c -fPIC -DPIC -o build/.libs/SDL_wave.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/audio/SDL_wave.c -o build/SDL_wave.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/cdrom/SDL_cdrom.c -o build/SDL_cdrom.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/cdrom/SDL_cdrom.c -fPIC -DPIC -o build/.libs/SDL_cdrom.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/cdrom/SDL_cdrom.c -o build/SDL_cdrom.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/cpuinfo/SDL_cpuinfo.c -o build/SDL_cpuinfo.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/cpuinfo/SDL_cpuinfo.c -fPIC -DPIC -o build/.libs/SDL_cpuinfo.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/cpuinfo/SDL_cpuinfo.c -o build/SDL_cpuinfo.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/events/SDL_active.c -o build/SDL_active.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/events/SDL_active.c -fPIC -DPIC -o build/.libs/SDL_active.o
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/events/SDL_active.c -o build/SDL_active.o >/dev/null 2>&1
/bin/bash ./libtool --mode=compile clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/events/SDL_events.c -o build/SDL_events.lo
libtool: compile: clang -fsanitize=integer -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow -I./include -D_GNU_SOURCE=1 -fvisibility=hidden -D_REENTRANT -DXTHREADS -D_REENTRANT -DHAVE_LINUX_VERSION_H -c ./src/events/SDL_events.c -fPIC -DPIC -o build/.libs/SDL_events.o
./src/events/SDL_events.c:90:43: error: unused parameter 'unused' [-Werror,-Wunused-parameter]
static int SDLCALL SDL_GobbleEvents(void *unused)
^
1 error generated.
make: *** [build/SDL_events.lo] Error 1
我是 Ubuntu 新手。我该如何修复此问题？