Lib SDL C++ Why wont my app compile with -static and libc

Question

I am trying to learn how to use SDL and I've been trying to get my app to run on other systems. when I try to compile using g++ -I src/include -L src/lib -o main main.cpp -lmingw32 -lSDL2main -lSDL2 -static-libgcc -static-libstdc++ -static I get a massive bunch of SDL errors saying undefined and the app doesn't finish compiling. However when running without -static it will compile but not include libc. How would I fix this issue while still being able to run on other systems without them installed?

I am also using MinGW-w64 for GCC

Just link dynamically and distribute your compilers runtime libraries with your application. — Jesper Juhl, Jun 17 '22 at 22:26
I am not sure how to do than and also it's probably better to statically link the runtime since then it can add all the runtimes required — user19227467, Jun 18 '22 at 13:03

HolyBlackCat · Accepted Answer · 2022-06-18T13:15:03.397

1

You're missing some flags. Running pkg-config --libs --static sdl2 will tell you the right flags.

If you don't have pkg-config installed (you could get it from MSYS2), you can look up the flags manually in the file called sdl2.pc, which is shipped with SDL2.

For me this command prints -L/mingw64/lib -lSDL2main -lmingw32 -lSDL2main -lSDL2 -mwindows -lmingw32 -ldinput8 -lshell32 -lsetupapi -ladvapi32 -luuid -lversion -loleaut32 -lole32 -limm32 -lwinmm -lgdi32 -luser32 -lm -Wl,--no-undefined -lmingw32 -lSDL2main -lSDL2 -mwindows.

You also need -static, even though it doesn't appear in the output. You can remove -static-libgcc -static-libstdc++, since they're implied by -static.

edited Jun 18 '22 at 13:15

answered Jun 17 '22 at 21:50

HolyBlackCat

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that seems to include SDL2 but doesn't include libc in the build so in the end still doesnt work on other computers – user19227467 Jun 18 '22 at 13:12
@user19227467 You still need `-static`; I've edited the answer to say it explicitly. Why do you mention "libc"? I don't think it exists on Windows. – HolyBlackCat Jun 18 '22 at 13:14
it works now using `-static`, thanks – user19227467 Jun 18 '22 at 13:21
libc seems to exist on windows. im not sure what it is but i got that error when testing on other computers – user19227467 Jun 18 '22 at 13:22
@user19227467 What error did you get exactly? – HolyBlackCat Jun 18 '22 at 13:24
they were pop-ups when running saying files such as libstdc++-6.dll were missing – user19227467 Jun 18 '22 at 19:25
@user19227467 Yep, but that's libstdc++, not libc. – HolyBlackCat Jun 18 '22 at 19:27
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i guess that might have been it then, i probably just read it without thinking. sorry – user19227467 Jun 18 '22 at 19:29

Lib SDL C++ Why wont my app compile with -static and libc

1 Answers1