Fails to link with musl libc

[kv-o]

Go version: 1.20
Go-SDL2 version: 0.4.38
SDL2 version: 2.26.5
OS: Alpine Linux 3.18.2
Architecture: amd64

---

Any attempt to build a basic go-sdl2 program on Alpine Linux fails due to undefined references to libc functions. My assumption is that go-sdl2 expects glibc, and as a result fails to link with my system's musl libraries.

% CGO_ENABLED=1 CC=gcc go build -tags static -ldflags "-s -w"
go: downloading github.com/veandco/go-sdl2 v0.4.38
# main
/usr/kvo/tech/extra/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_syshaptic.c.o): in function `snprintf':
/usr/include/bits/stdio2.h:67: undefined reference to `__snprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_image_linux_amd64.a(IMG_jpg.o): in function `my_error_exit':
IMG_jpg.c:(.text+0x124): undefined reference to `__longjmp_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_image_linux_amd64.a(IMG_png.o): in function `IMG_SavePNG_RW_libpng':
IMG_png.c:(.text+0x406): undefined reference to `__longjmp_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_image_linux_amd64.a(IMG_png.o): in function `IMG_LoadPNG_RW':
IMG_png.c:(.text+0x3bf4): undefined reference to `__longjmp_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libpng_linux_amd64.a(png.o): in function `png_create_png_struct':
(.text+0x1837): undefined reference to `__longjmp_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libpng_linux_amd64.a(pngerror.o):(.text+0x12d): undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libpng_linux_amd64.a(pngerror.o): in function `png_free_jmpbuf':
(.text+0x73b): undefined reference to `__longjmp_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libpng_linux_amd64.a(pngerror.o): in function `png_longjmp':
(.text+0x7bb): undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libpng_linux_amd64.a(pngerror.o): in function `png_safe_error':
(.text+0xb35): undefined reference to `__longjmp_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libpng_linux_amd64.a(pngrutil.o): in function `png_do_read_interlace':
(.text+0x48a1): undefined reference to `__memcpy_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libpng_linux_amd64.a(pngwutil.o): in function `png_write_sCAL_s':
(.text+0x284a): undefined reference to `__memcpy_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libjpeg_linux_amd64.a(jerror.o):(.text+0x113): undefined reference to `__sprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libjpeg_linux_amd64.a(jerror.o):(.text+0x1d0): undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libjpeg_linux_amd64.a(jerror.o):(.text+0x180): undefined reference to `__sprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_dynapi.c.o): in function `fprintf':
/usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_dynapi.c.o):/usr/include/bits/stdio2.h:100: more undefined references to `__fprintf_chk' follow
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_string.c.o): in function `vsnprintf':
/usr/include/bits/stdio2.h:80: undefined reference to `__vsnprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:80: undefined reference to `__vsnprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_kmsdrmvideo.c.o): in function `printf':
/usr/include/bits/stdio2.h:107: undefined reference to `__printf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:107: undefined reference to `__printf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_syspower.c.o): in function `snprintf':
/usr/include/bits/stdio2.h:67: undefined reference to `__snprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_log.c.o): in function `SDL_LogOutput':
/usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_dspaudio.c.o): in function `read':
/usr/include/bits/unistd.h:39: undefined reference to `__read_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_alsa_audio.c.o): in function `fprintf':
/usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_x11events.c.o): in function `fprintf':
/usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_x11keyboard.c.o): in function `printf':
/usr/include/bits/stdio2.h:107: undefined reference to `__printf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:107: undefined reference to `__printf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(SDL_x11modes.c.o): in function `fprintf':
/usr/include/bits/stdio2.h:100: undefined reference to `__fprintf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(edid-parse.c.o): in function `printf':
/usr/include/bits/stdio2.h:107: undefined reference to `__printf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:107: undefined reference to `__printf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:107: undefined reference to `__printf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:107: undefined reference to `__printf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /usr/include/bits/stdio2.h:107: undefined reference to `__printf_chk'
/usr/lib/gcc/x86_64-alpine-linux-musl/12.2.1/../../../../x86_64-alpine-linux-musl/bin/ld: /data/kvo/go/pkg/mod/github.com/veandco/[email protected]/img/../_libs/libSDL2_linux_amd64.a(edid-parse.c.o):/usr/include/bits/stdio2.h:107: more undefined references to `__printf_chk' follow
collect2: error: ld returned 1 exit status
% 

[veeableful]

Hi @kv-o, yes we built the static libraries using glibc. There is no plan to support musl at the moment as we lack maintainers but PRs would be accepted!