fix build with older postgresql

diff --git a/ext/pgsql/config.m4 b/ext/pgsql/config.m4
index c635a2d7e594b4b2eb6d6dd19e5a2da94edeb117..95540d4eb4c3cb3f8b45741c471c2759181cc3f8 100644 (file)
--- a/ext/pgsql/config.m4
+++ b/ext/pgsql/config.m4
@@ -44,7 +44,7 @@ if test "$PHP_PGSQL" != "no"; then
         fi
       done
 
-      for j in $PHP_LIBDIR $PHP_LIBDIR/pgsql $PHP_LIBDIR/postgres $PHP_LIBDIR/postgresql ""; do
+      for j in lib lib/pgsql lib/postgres lib/postgresql ""; do
         if test -f "$i/$j/libpq.so" || test -f "$i/$j/libpq.a"; then 
           PGSQL_LIBDIR=$i/$j
         fi