resolv.h test proposal

Stepan Kasal kasal@ucw.cz
Tue Oct 26 09:35:00 GMT 2004


Hello Gerrit,

On Mon, Oct 25, 2004 at 05:40:19PM +0200, Gerrit P. Haase wrote:
> I'm sorry, I don't know enough about autoconf / m4 programming to
> integrate this into autoconf.

well, you don't need much special knowledge (I hope).
You wrote the most of the macro for me.  Then I used the definitions
from the file /usr/share/autoconf/autoconf/headers.m4 as templates.
(This file can be found by grepping for AC_CHECK_HEADERS.)

I adapted your check.
Before I try to submit it, I'd like to ask you (or others on the
lists) to test it.

(Delete the AN_HEADER line there are problems with it.)

Thank you,
	Stepan Kasal
-------------- next part --------------
# AC_HEADER_RESOLV
# ----------------
AN_HEADER(resolv.h,	AC_HEADER_RESOLV)
AC_DEFUN(AC_HEADER_RESOLV,
[AC_CHECK_HEADERS(sys/types.h netinet/in.h arpa/nameser.h sys/socket.h)
AC_CACHE_CHECK(for resolv.h,
	       ac_cv_header_resolv_h,
AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[
#if HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif
#ifdef HAVE_NETINET_IN_H
#  include <netinet/in.h>   /* inet_ functions / structs */
#endif
#ifdef HAVE_ARPA_NAMESER_H
#  include <arpa/nameser.h> /* DNS HEADER struct */
#endif
#ifdef HAVE_SYS_SOCKET_H
#  include <sys/socket.h> /* DNS HEADER struct */
#endif]]),
		  ac_cv_header_resolv_h=yes,
		  ac_cv_header_resolv_h=no))
if test $ac_cv_header_resolv_h = yes; then
	AC_DEFINE(HAVE_RESOLV_H, 1,
		[Define to 1 if you have the <resolv.h> header file.])
fi
])# AC_HEADER_RESOLV

-------------- next part --------------
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