Bug#810589: use of sys/cdefs and musl libc

[Vincent Bernat]

Package: libbsd-dev
Version: 0.8.1-1
Severity: normal

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Hash: SHA256

Hi!

I was trying to compile a program using libbsd with musl-gcc/musl-ldd
and got the following error:

In file included from /usr/include/bsd/string.h:36:0,
from ../../../src/compat/strlcpy.c:21:
/usr/include/bsd/sys/cdefs.h:28:28: fatal error: sys/cdefs.h: No such file or directory

The musl FAQ says:

Congratulations, you have found a bug! The bug is in the application
that uses this internal glibc header. This header is *not* intended
to be used by any program. File a bug report.

http://wiki.musl-libc.org/wiki/FAQ#Q:_I.27m_trying_to_compile_something_against_musl_and_I_get_error_messages_about_sys.2Fcdefs.h

So, filing a bug report, but I suppose this is not as simple as
that. :)

- -- System Information:
Debian Release: stretch/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable'), (101, 'experimental-debug'), (101, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores)
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libbsd-dev depends on:
ii libbsd0 0.8.1-1

libbsd-dev recommends no packages.

libbsd-dev suggests no packages.

- -- no debconf information

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[Vincent Bernat]

❦ 10 janvier 2016 08:56 +0100, Vincent Bernat <ber...@debian.org> :

> I was trying to compile a program using libbsd with musl-gcc/musl-ldd
> and got the following error:
>
> In file included from /usr/include/bsd/string.h:36:0,
> from ../../../src/compat/strlcpy.c:21:
> /usr/include/bsd/sys/cdefs.h:28:28: fatal error: sys/cdefs.h: No such file or directory
>
> The musl FAQ says:
>
> Congratulations, you have found a bug! The bug is in the application
> that uses this internal glibc header. This header is *not* intended
> to be used by any program. File a bug report.
>
> http://wiki.musl-libc.org/wiki/FAQ#Q:_I.27m_trying_to_compile_something_against_musl_and_I_get_error_messages_about_sys.2Fcdefs.h
>
> So, filing a bug report, but I suppose this is not as simple as
> that. :)

Note that even if this "bug" wasn't here, I wouldn't be able to directly
use libbsd since it needs to be compiled for musl libc first. So, feel
free to just ignore the bug as I won't go further either.
--
Use library functions.
- The Elements of Programming Style (Kernighan & Plauger)