-# gethostname.m4 serial 8
-dnl Copyright (C) 2002, 2008, 2009 Free Software Foundation, Inc.
+# gethostname.m4 serial 12
+dnl Copyright (C) 2002, 2008-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl Where is gethostname() defined?
dnl - On native Windows, it is in ws2_32.dll.
- dnl - Otherwise is is in libc.
+ dnl - Otherwise it is in libc.
GETHOSTNAME_LIB=
AC_CHECK_FUNCS([gethostname], , [
AC_CACHE_CHECK([for gethostname in winsock2.h and -lws2_32],
[gl_cv_w32_gethostname=no
gl_save_LIBS="$LIBS"
LIBS="$LIBS -lws2_32"
- AC_TRY_LINK([
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#include <stddef.h>
-], [gethostname(NULL, 0);], [gl_cv_w32_gethostname=yes])
+]], [[gethostname(NULL, 0);]])], [gl_cv_w32_gethostname=yes])
LIBS="$gl_save_LIBS"
])
if test "$gl_cv_w32_gethostname" = "yes"; then
AC_SUBST([GETHOSTNAME_LIB])
if test "$ac_cv_func_gethostname" = no; then
- AC_LIBOBJ([gethostname])
HAVE_GETHOSTNAME=0
- gl_PREREQ_GETHOSTNAME
fi
dnl Also provide HOST_NAME_MAX when <limits.h> lacks it.
#if HAVE_NETDB_H
# include <netdb.h>
#endif
-])
+],
+ [dnl The system does not define MAXHOSTNAMELEN in any of the common
+ dnl headers. Use a safe fallback.
+ gl_cv_decl_HOST_NAME_MAX=256
+ ])
fi
fi
])