Hi,

I intend to work on the latest version of xserver-xorg-input-keyboard/ since
it showed up as candidate for the Bug of the Day[1]. Unfortunately the latest upstream version does not build[2]:

...
configure:12876: checking for gcc options needed to detect all undeclared functions
configure:12898: gcc -c -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/builds/tille/xserver-xorg-input-keyboard/debian/output/source_dir=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -fcf-protection
-Wdate-time -D_FORTIFY_SOURCE=2 conftest.c >&5
conftest.c: In function 'main':
conftest.c:27:8: error: 'strchr' undeclared (first use in this function)
27 | (void) strchr;
| ^~~~~~
conftest.c:1:1: note: 'strchr' is defined in header '<string.h>'; this is probably fixable by adding '#include <string.h>'
...

It might be cheap to simply add the missing '#include <string.h>' -
but conftest.c is auto-generated and I think its rather an issue
in autoconf. Any idea for a temporary workaround?

Kind regards
Andreas.

[1] https://salsa.debian.org/tille/tiny_qa_tools/-/wikis/Tiny-QA-tasks
[2] https://salsa.debian.org/tille/xserver-xorg-input-keyboard/-/jobs/6333708#L1745

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On Wed, Sep 25, 2024 at 11:47:09AM +0200, Andreas Tille wrote:

Hi,

I intend to work on the latest version of xserver-xorg-input-keyboard/ since it showed up as candidate for the Bug of the Day[1]. Unfortunately the latest
upstream version does not build[2]:

...
configure:12876: checking for gcc options needed to detect all undeclared functions

No, that's not the reason for the failure (failing conftest programs are
normal and expected in certain checks and "detect all undeclared
functions" definitely sounds like one). The reason for the failure is "configure: error: This is not the keyboard driver you are looking for.
Use evdev or libinput.". Which makes sense.
The actual check for that (see configure.ac) is literally

"""
case $host_os in
linux*)
"""
.



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