Arch Linux

Description:

Cannot compile application that includes <bsd/unistd.h>. I think that the problem is that the unistd.h file in libbsd is including <sys/cdefs.h> rather than <bsd/sys/cdefs.h>. I don't know for sure though. The change that made this problem visible to me is in unistd.h there is the following change:

$ diff libbsd-0.8.0/include/bsd/unistd.h libbsd-0.7.0/include/bsd/unistd.h
63,64c63
< void setproctitle(const char *fmt, ...)
< __printflike(1, 2);
---
> void setproctitle(const char *fmt, ...);

But the __printflike macro is not available in <sys/cflags.h> although it is in <sys/bsd/cflags.h>. This leads to compilation errors when including <bsd/unistd.h>. Beyond that I don't know enough about libbsd and its packaging in Arch to know the root cause and whether this is a problem with upstream or with Arch.

Additional info:
* libbsd 0.8.0-1

Steps to reproduce:

$ cat > test2.c <<-EOF
#include <bsd/unistd.h>
int main() {
return 0;
}
EOF

$ gcc test2.c
In file included from test2.c:1:0:
/usr/include/bsd/unistd.h: In function ‘setproctitle’:
/usr/include/bsd/unistd.h:64:2: error: expected declaration specifiers before ‘__printflike’
__printflike(1, 2);
^
test2.c:2:12: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘{’ token
int main() {
^
In file included from test2.c:1:0:
/usr/include/bsd/unistd.h:63:6: error: old-style parameter declarations in prototyped function definition
void setproctitle(const char *fmt, ...)
^
test2.c:4:1: error: expected ‘{’ at end of input
}
^