-# 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_CHECK_FUNC(gethostbyname, ,
- AC_CHECK_LIB(nsl, gethostbyname, ,
- AC_CHECK_LIB(resolv, gethostbyname)))
-AC_CHECK_FUNC(socket, ,
- AC_CHECK_LIB(socket, socket))
-])
+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 NDBM
-dnl --------------
+dnl ----------------
+dnl CHECK FOR d_type
+dnl ----------------
dnl
-dnl NMH_CHECK_DBM(libname,action-if-true,action-if-false,other-libraries)
-dnl Check for presence of dbm_open() in the specified library
-dnl (if libname is the empty string then don't try to link against
-dnl any particular library). If action-if-true is unspecified it
-dnl defaults to adding "-llibname" to the beginning of LIBS.
-dnl If other-libraries is specified then these are prepended to
-dnl LIBS for the duration of the check.
-dnl NB that the checks for the right dbm header files must
-dnl be done before using this macro!
+dnl From Jim Meyering.
dnl
-dnl We try to link our own code fragment (which includes the
-dnl headers in the same way slocal.c does) rather than
-dnl using AC_CHECK_LIB because on later versions of libdb
-dnl the dbm_open() function is provided via a #define and
-dnl we don't want to hardcode searching for the internal
-dnl function that lies behind it. (AC_CHECK_LIB works by
-dnl defining its own bogus prototype rather than pulling in
-dnl the right header files.)
-AC_DEFUN(NMH_CHECK_DBM,
-[
-if test "x$1" == "x"; then
- nmh_libs=
- dnl this is just for the benefit of AC_CACHE_CHECK's message
- nmh_testname=libc
-else
- nmh_libs="-l$1 "
- nmh_testname="$1"
-fi
-AC_CACHE_CHECK([for dbm in $nmh_testname], [nmh_cv_check_dbm_$1],[
-nmh_saved_libs="$LIBS"
-LIBS="$nmh_libs $4 $LIBS"
-AC_LINK_IFELSE(AC_LANG_PROGRAM([[
-#ifdef HAVE_DB1_NDBM_H
-#include <db1/ndbm.h>
-#else
-#ifdef HAVE_GDBM_NDBM_H
-#include <gdbm/ndbm.h>
-#else
-#if defined(HAVE_DB_H)
-#define DB_DBM_HSEARCH 1
-#include <db.h>
-#else
-#include <ndbm.h>
-#endif
-#endif
-#endif
-]],
-[[dbm_open("",0,0);]]),[nmh_cv_check_dbm_$1=yes],[
-nmh_cv_check_dbm_$1=no])
-LIBS="$nmh_saved_libs"
-])
-if eval "test \"`echo '$nmh_cv_check_dbm_'$1`\" = yes"; then
- nmh_tr_macro=HAVE_LIB`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
- AC_DEFINE_UNQUOTED($nmh_tr_macro)
- m4_if([$2],,[LIBS="$nmh_libs$LIBS"],[$2])
-else
- $3
- :
-fi
-])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;],
+
+ 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
+ ]
+)
projects / mmh / blobdiff