vpopmail-5.4.33-vusaged-configure patch by Roberto Puzzanghera

It seems that at least on Debian 11 vusaged refuses to run the configure successfully, as the
mysql libraries are not linked.
After some inspection, I noticed that avoiding the break of the configure command, the
following make command will find libmysqlclient and compile with no problems, and the
program works as expected.

NB an "autoreconf -f -i" is needed before configuring, as the configure.ac was modified as follows.

=====================================================================================================

diff -ruN vpopmail-5.4.33-original/vusaged/configure.ac vpopmail-5.4.33/vusaged/configure.ac
--- vpopmail-5.4.33-original/vusaged/configure.ac	2011-02-28 18:00:45.000000000 +0100
+++ vpopmail-5.4.33/vusaged/configure.ac	2021-09-02 21:17:50.126695915 +0200
@@ -392,17 +392,17 @@
 
 if test x"$ac_cv_lib_vpopmail_vauth_getpw" = xno
 then
-   AC_MSG_ERROR([No vauth_getpw in libvpopmail])
+   AC_MSG_RESULT([No vauth_getpw in libvpopmail])
 fi
 
 if test x"$ac_cv_lib_vpopmail_vauth_getall" = xno
 then
-   AC_MSG_ERROR([No vauth_getall in libvpopmail])
+   AC_MSG_RESULT([No vauth_getall in libvpopmail])
 fi
 
 if test x"$ac_cv_lib_vpopmail_get_domain_entries" = xno
 then
-   AC_MSG_ERROR([No get_domain_entires in libvpopmail])
+   AC_MSG_RESULT([No get_domain_entires in libvpopmail])
 fi
 
 if test x"$ac_cv_lib_vpopmail_client_query_quick" = xno