ITS#2764 catch -lc at end of line as well

configure.in

@@ -691,7 +691,7 @@ if test $ol_enable_perl != no ; then
 
 	else
 		PERL_CPPFLAGS="`$PERLBIN -MExtUtils::Embed -e ccopts`"
-		PERL_LDFLAGS="`$PERLBIN -MExtUtils::Embed -e ldopts|sed -e 's/ -lc / /'`"
+		PERL_LDFLAGS="`$PERLBIN -MExtUtils::Embed -e ldopts|sed -e 's/ -lc / /' -e 's/ -lc$//'`"
 
 		if test x"$ol_with_perl_module" = "xstatic" ; then
 			SLAPD_PERL_LDFLAGS="$PERL_LDFLAGS"