X-Git-Url: http://git.marmaro.de/?p=mmh;a=blobdiff_plain;f=aclocal.m4;h=b678f475637576bdcb1f0c6a73ab96805cb25292;hp=7dd6110e7fbfa6efea25d841bfe75217a32e90f0;hb=ca1023716d4c2ab890696f3e41fa0d94267a940e;hpb=487fd343fb19fcf78eeacd79bf0099b278678971

diff --git a/aclocal.m4 b/aclocal.m4
index 7dd6110..b678f47 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,21 +1,63 @@
 
-# Originally by John Hawkinson <jhawk@mit.edu>
-# Under Solaris, those
-# applications need to link with "-lsocket -lnsl".  Under IRIX, they
-# need to link with "-lnsl" but should *not* link with "-lsocket"
-# because libsocket.a breaks a number of things (for instance,
-# gethostbyname() under IRIX 5.2, and snoop sockets under most versions
-# of IRIX).
 #
-# The check for libresolv is in case you are attempting to link
-# statically and happen to have a libresolv.a lying around (and no
-# libnsl.a). An example of such a case would be Solaris with
-# BIND 4.9.5 installed.
+# Updated for more modern systems.  Check to see if we need to link against
+# optional libraries for networking functions.
+#
+
+AC_DEFUN([AC_CHECK_NETLIBS],
+[AC_SEARCH_LIBS([gethostbyname], [nsl], ,
+		[AC_MSG_ERROR([gethostbyname not found])])
+ AC_SEARCH_LIBS([connect], [socket], , [AC_MSG_ERROR([connect not found])])
+])dnl
+
+dnl ----------------
+dnl CHECK FOR d_type
+dnl ----------------
+dnl
+dnl From Jim Meyering.
+dnl
+dnl Check whether struct dirent has a member named d_type.
+dnl
+
+# Copyright (C) 1997, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
+# Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([CHECK_TYPE_STRUCT_DIRENT_D_TYPE],
+  [AC_REQUIRE([AC_HEADER_DIRENT])dnl
+   AC_CACHE_CHECK([for d_type member in directory struct],
+                  jm_cv_struct_dirent_d_type,
+     [AC_TRY_LINK(dnl
+       [
+#include <sys/types.h>
+#ifdef HAVE_DIRENT_H
+# include <dirent.h>
+#else /* not HAVE_DIRENT_H */
+# define dirent direct
+# ifdef HAVE_SYS_NDIR_H
+#  include <sys/ndir.h>
+# endif /* HAVE_SYS_NDIR_H */
+# ifdef HAVE_SYS_DIR_H
+#  include <sys/dir.h>
+# endif /* HAVE_SYS_DIR_H */
+# ifdef HAVE_NDIR_H
+#  include <ndir.h>
+# endif /* HAVE_NDIR_H */
+#endif /* HAVE_DIRENT_H */
+       ],
+       [struct dirent dp; dp.d_type = 0;],
 
-AC_DEFUN(AC_CHECK_NETLIBS,
-[AC_CHECK_FUNC(gethostbyname, ,
-  AC_CHECK_LIB(nsl, gethostbyname, ,
-    AC_CHECK_LIB(resolv, gethostbyname)))
-AC_CHECK_FUNC(socket, ,
-  AC_CHECK_LIB(socket, socket))
-])
+       jm_cv_struct_dirent_d_type=yes,
+       jm_cv_struct_dirent_d_type=no)
+     ]
+   )
+   if test $jm_cv_struct_dirent_d_type = yes; then
+     AC_DEFINE(HAVE_STRUCT_DIRENT_D_TYPE, 1,
+       [Define if there is a member named d_type in the struct describing
+        directory headers.])
+   fi
+  ]
+)