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#serial 16
dnl This is just a wrapper function to encapsulate this kludge.
dnl Putting it in a separate file like this helps share it between
dnl different packages.
AC_DEFUN(jm_CHECK_DECLS,
[
AC_REQUIRE([_jm_DECL_HEADERS])
AC_REQUIRE([AC_HEADER_TIME])
headers='
#include <stdio.h>
#if HAVE_STRING_H
# if !STDC_HEADERS && HAVE_MEMORY_H
# include <memory.h>
# endif
# include <string.h>
#else
# if HAVE_STRINGS_H
# include <strings.h>
# endif
#endif
#if HAVE_STDLIB_H
# include <stdlib.h>
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <sys/types.h>
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#if HAVE_UTMP_H
# include <utmp.h>
#endif
'
AC_CHECK_DECLS([
free,
getenv,
geteuid,
getgrgid,
getlogin,
getpwuid,
getuid,
getutent,
lseek,
malloc,
memchr,
memrchr,
nanosleep,
realloc,
stpcpy,
strndup,
strnlen,
strstr,
strtoul,
strtoull,
ttyname], , , $headers)
])
dnl FIXME: when autoconf has support for it.
dnl This is a little helper so we can require these header checks.
AC_DEFUN(_jm_DECL_HEADERS,
[
AC_REQUIRE([AC_HEADER_STDC])
AC_CHECK_HEADERS(memory.h string.h strings.h stdlib.h unistd.h sys/time.h \
utmp.h utmpx.h)
])
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