Ubuntu
libsdl2 package

sdl2-config can fail when using clang over gcc.

Bug #2035422 reported by Bram Stolk
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
libsdl2 (Debian)
Fix Released
Unknown
libsdl2 (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

The following will fail:

$ CC=clang /usr/bin/sdl2-config --static-libs
clang: error: unsupported option '-print-multiarch'
clang: error: no input files
...

Whereas using gcc as compiler will work correctly:

CC=gcc /usr/bin/sdl2-config --static-libs
/usr/lib/x86_64-linux-gnu/libSDL2.a -lm -lasound -lm -ldl -lpthread -lpulse-simple -lpulse -pthread -lsamplerate -lX11 -lXext -lXcursor -lXi -lXfixes -lXrandr -lXss -ldrm -lgbm -lwayland-egl -lwayland-client -lwayland-cursor -lxkbcommon -ldecor-0 -lpthread

This is because clang does not know the flag -print-multiarch

This makes it hard to use sdl2-config to query what flags to use when linking an SDL2 application statically.

OS: I have encountered this issue both in lunar lobster and mantic minotaur.

SDL2 version: 2.28.3+dfsg-2

Expected behaviour: no error, as in gcc case, when using clang.

$ lsb_release -rd
No LSB modules are available.
Description: Ubuntu Mantic Minotaur (development branch)
Release: 23.10

Revision history for this message
Paride Legovini (paride) wrote :

Related:

[1] https://github.com/llvm/llvm-project/commit/e05edb19adbfd1b24f58d583e4b5b4d742f982ee

This looks like a valid issue which I can reproduce locally on my Mantic system, but I am not sure the issue should be fixed in Ubuntu. Given that clang explicitly disabled support for -print-multiarch in [1], I doubt that's the right project to report this issue against.

I suggest reporting the issue against libsdl:

  https://github.com/libsdl-org/SDL/issues

and see what they think about it.

Changed in libsdl2 (Ubuntu):
status: New → Confirmed
Revision history for this message
Bram Stolk (b-stolk) wrote (last edit ):

I reported it as a bug with SDL2, but actually, the bug stems from a Debian patch.
https://github.com/libsdl-org/SDL/issues/8244#issuecomment-1719808138

I then proceeded to file a bug with Debian, which I am unable to do from an Ubuntu machine:

  $ reportbug -B libsdl2-dev
  Ignored bogus setting for -B: libsdl2-dev
  *** ERROR: "Ubuntu" BTS is currently unsupported.

  Please use "ubuntu-bug" (from the apport package) for reporting bugs in Ubuntu.

  You can report bugs to Debian by specifying 'bts debian' in your ~/.reportbugrc
  or by passing the -B debian option on the commandline (see reportbug(1)).

I have tried sending an email bug report to debian instead. I will update w bug nr iif it makes it through the automated system.

Revision history for this message
Bram Stolk (b-stolk) wrote :

Bug reported with Debian:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1051946

Bug Watch Updater (bug-watch-updater)
Changed in libsdl2 (Debian):
status: Unknown → Fix Released
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