configure.ac: pass through db link vars to managesieve

Should fix #2026

Thanks to Jason Tibbits for help with this patch :)

configure.ac

@@ -273,6 +273,7 @@ if test "$with_mysql" != "no"; then
     LIBS="${LIBS} ${MYSQL_LIBADD}"
     CPPFLAGS="${MYSQL_INCADD} ${CPPFLAGS}"
     AC_DEFINE(HAVE_MYSQL,[],[Build in MySQL support?])
+    AC_SUBST(MYSQL_LIBADD)
 fi
 AC_MSG_RESULT($with_mysql)
 
@@ -318,6 +319,7 @@ if test "$use_pgsql" != "no"; then
   CPPFLAGS="${PGSQL_INCADD} ${CPPFLAGS}"
 
   AC_DEFINE(HAVE_PGSQL,[],[Build in PgSQL support?])
+  AC_SUBST(PGSQL_LIBADD)
 fi
 
 dnl End PgSQL Detection
@@ -1957,6 +1959,7 @@ if test "x$use_sqlite" = xyes; then
     LIBS="${LIBS} ${SQLITE_LIBADD}"
     CPPFLAGS="${SQLITE_INCADD} ${CPPFLAGS}"
     AC_DEFINE(HAVE_SQLITE,[],[Build in SQLite support?])
+    AC_SUBST(SQLITE_LIBADD)
   else
     AC_MSG_ERROR([SQLite required but not found])
   fi

perl/sieve/managesieve/Makefile.PL.in

@@ -69,7 +69,7 @@ WriteMakefile(
     'ABSTRACT'  => 'Cyrus Sieve management interface',
     'VERSION_FROM' => "@top_srcdir@/perl/sieve/managesieve/managesieve.pm", # finds $VERSION
     'MYEXTLIB'  => '../lib/.libs/libisieve.a @top_builddir@/perl/.libs/libcyrus.a @top_builddir@/perl/.libs/libcyrus_min.a',
-    'LIBS'	=> ["$LIB_SASL @SSL_LIBS@ @LIB_UUID@ @ZLIB@"],
+    'LIBS'	=> ["$LIB_SASL @SSL_LIBS@ @LIB_UUID@ @ZLIB@ @SQLITE_LIBADD@ @MYSQL_LIBADD@ @PGSQL_LIBADD@"],
     'CCFLAGS'	=> '@GCOV_CFLAGS@',
     'DEFINE'	=> '-DPERL_POLLUTE',     # e.g., '-DHAVE_SOMETHING' 
     'INC'	=> "-I@top_srcdir@/lib -I@top_srcdir@/perl/sieve -I@top_srcdir@/perl/sieve/lib @SASLFLAGS@ @SSL_CPPFLAGS@",