We are seeing build issues with linux-pam in the autobuilders such as:
md5_crypt.c: In function 'Goodcrypt_md5':
md5_crypt.c:145:13: error: implicit declaration of function 'asprintf'; did you mean 'vsprintf'? [-Wimplicit-function-declaration]
145 | if (asprintf(&passwd, "%s%.*s$%s", magic, sl, sp, buf) < 0)
| ^~~~~~~~
| vsprintf
This is due to the fact that <stdio.h> gets included without
_GNU_SOURCE being defined, and so the prototype of asprintf() is not
accessible, at least with uclibc-ng.
The _GNU_SOURCE definition is properly in linux-pam's config.h, but
config.h doesn't get properly included first everywhere. This issue
has been fixed upstream in the mean time, so we simply backport the
upstream patch.
Fixes:
http://autobuild.buildroot.net/results/49b190b3fbae3cdca4c7a08b3ab5100a937ede9e/
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Julien Olivain <ju.o@free.fr>
001e777d50