annotate contrib/chg/util.h @ 28604:d4d8a3c89e6d

chg: define PRINTF_FORMAT_ for non gnu C compiler

Before this patch, if __GNUC__ is not defined, PRINTF_FORMAT_ will not be
defined and will cause compilation error.

This patch solves the issue by making sure PRINTF_FORMAT_ is defined. It
allows chg to be compiled with tcc (http://bellard.org/tcc/) by:

  tcc -o chg *.c

/*
 * Utility functions
 *
 * Copyright (c) 2011 Yuya Nishihara <[e-mail]>
 *
 * This software may be used and distributed according to the terms of the
 * GNU General Public License version 2 or any later version.
 */

#ifndef UTIL_H_
#define UTIL_H_

#ifdef __GNUC__
#define PRINTF_FORMAT_ __attribute__((format(printf, 1, 2)))
#else
#define PRINTF_FORMAT_
#endif

void abortmsg(const char *fmt, ...) PRINTF_FORMAT_;

void enabledebugmsg(void);
void debugmsg(const char *fmt, ...) PRINTF_FORMAT_;

void *mallocx(size_t size);
void *reallocx(void *ptr, size_t size);

int runshellcmd(const char *cmd, const char *envp[], const char *cwd);

#endif  /* UTIL_H_ */