Unable to compile source code in Debian sid (clang 16.0.6)

[holishing]

Just add a memo (from bbsdocker/imageptt#8 ).
If someday I find a solution, I will share here and perhaps add a PR about this.

https://github.com/bbsdocker/imageptt/actions/runs/9700365062/job/26771584227

#19 56.05 In file included from mergedir2.cc:7:
#19 56.05 In file included from ../include/bbs.h:13:
#19 56.05 /usr/include/string.h:506:15: error: exception specification in declaration does not match previous declaration
#19 56.05 extern size_t strlcpy (char *__restrict __dest,
#19 56.05               ^
#19 56.05 ../include/osdep.h:33:8: note: previous declaration is here
#19 56.05 size_t strlcpy(char *dst, const char *src, size_t size);
#19 56.05        ^
#19 56.05 In file included from mergedir2.cc:7:
#19 56.05 In file included from ../include/bbs.h:13:
#19 56.05 /usr/include/string.h:512:15: error: exception specification in declaration does not match previous declaration
#19 56.05 extern size_t strlcat (char *__restrict __dest,
#19 56.05               ^
#19 56.05 ../include/osdep.h:37:8: note: previous declaration is here
#19 56.05 size_t strlcat(char *dst, const char *src, size_t size);
#19 56.05        ^
#19 56.15 2 errors generated.
#19 56.16 *** Error code 1
#19 56.16 
#19 56.16 Stop.
#19 56.16 bmake[1]: stopped in /home/bbs/pttbbs/util
#19 56.16 *** Error code 1

[IepIweidieng]

The assumption of strlcpy() & strlcat() being nonexistent on Linux is broken on your Linux distribution version.

pttbbs/include/osdep.h

Lines 12 to 24 in c4f6a29

	#ifdef __linux__
	#ifndef _GNU_SOURCE
	#define _GNU_SOURCE /* for strcasestr */
	#endif
	#include <sys/ioctl.h>
	#include <sys/file.h> /* for flock() */
	#include <strings.h> /* for strcasecmp() */
	#define NEED_STRLCPY
	#define NEED_STRLCAT
	#define NEED_SETPROCTITLE

Maybe an actual test for the existence of a certain system function is needed, which can be achieved by, e.g., compiling and linking a test program without the BBS library to see whether there are any undefined references.