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libtool incompatible with autoconf 2.53

From: Artem V. Andreev
Subject: libtool incompatible with autoconf 2.53
Date: Thu, 5 Sep 2002 21:51:30 +0400 (MSD)

I've found that libtool 1.4.2 is not fully compatiple with autoconf 2.53.
Namely, when checking for AC_LIBTOOL_DLOPEN it relies on autoconf's
AC_DEFUN defining AC_PROVIDE_... which seems to me not true in 2.53
The implication of this is rather sad: libtool cannot detect anymore
whether support for dlopen is required (and assumes no).
A simple patch seems to correct the situation but I am not sure whether
*this* works with autoconf before 2.53 (but at least it works for me):

--- ../libtool.m4       Tue Sep 11 07:16:01 2001
+++ libtool.m4  Thu Sep  5 17:35:54 2002
@@ -69,7 +69,6 @@

-ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN], enable_dlopen=yes, enable_dlopen=no)
-enable_win32_dll=yes, enable_win32_dll=no)
+AC_PROVIDE_IFELSE([AC_LIBTOOL_DLOPEN], [enable_dlopen=yes], [enable_dlopen=no])
+AC_PROVIDE_IFELSE([AC_LIBTOOL_WIN32_DLL], [enable_win32_dll=yes], 


                                                Sincerely yours
                                                Artem V. Andreev

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