Remove h/nmh.h

[mmh] / aclocal.m4

diff --git a/aclocal.m4 b/aclocal.m4
index c9362ec..872f5f9 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,86 +1,11 @@
 
-# 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.
-
-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))
-])
+# Updated for more modern systems.  Check to see if we need to link against
+# optional libraries for networking functions.
+#
 
-dnl --------------
-dnl CHECK FOR NDBM
-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
-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
+AC_DEFUN([NMH_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