Make dbase compilable as shared module

ext/dbase/Makefile.in

@@ -1,5 +1,6 @@
 
 LTLIBRARY_NAME    = libdbase.la
 LTLIBRARY_SOURCES = dbf_head.c dbf_rec.c dbf_misc.c dbf_ndx.c dbase.c
+LTLIBRARY_SHARED_NAME = dbase.la
 
 include $(top_srcdir)/build/dynlib.mk

ext/dbase/config.m4

@@ -7,7 +7,5 @@ PHP_ARG_ENABLE(dbase,whether to enable the bundled dbase library,
 
 if test "$PHP_DBASE" = "yes"; then
   AC_DEFINE(DBASE,1,[ ])
-  PHP_EXTENSION(dbase)
-else
-  AC_DEFINE(DBASE,0,[ ])
+  PHP_EXTENSION(dbase, $ext_shared)
 fi