src/version.c

#define _POSIX_C_SOURCE 200809L
#define _NETBSD_SOURCE 1
 
#include <stdio.h>
 
#include "mpx.h"
#include "buildinfo.h"
 
/* MP_VERSION, MP_BUILD_CC, MP_BUILD_TARGET, and mp_build_cflags
 * (buildinfo.h) are generated fresh by mk/b.sh right before the real
 * compile, from that exact build's own src/version.pl/cc/ccflgs
 * (sanitizer flags included, if the probe earlier in mk/b.sh found
 * them usable) -- never hand-maintained, so this can never drift from
 * what actually went into the binary printing it. mp_build_cflags is
 * one short string per flag, not ccflgs as a single literal -- see
 * buildinfo.h's own generation comment in mk/b.sh for why (a real C89
 * string-literal length limit, not a style choice). MP_VERSION is
 * mp's own version, not a separate one for mpx -- the two are always
 * built from the identical commit, one mk/b.sh run makes both, so
 * there is no such thing as "mpx version 4.1.0 paired with mp version
 * 4.0.9" to distinguish. */
void
cmd_version(int argc, char** argv)
{
	long i;
 
	if(argc != 2)
	{
		badusage(argv[0], "version");
	}
	printf("mpx %s built with: cc=%s target=%s\n", MP_VERSION, MP_BUILD_CC, MP_BUILD_TARGET);
	printf("cflags:");
	for(i = 0; mp_build_cflags[i] != NULL; i = i + 1)
	{
		printf(" %s", mp_build_cflags[i]);
	}
	printf("\n");
}