--- ./configure.ac.org	2010-10-04 22:10:50.000000000 +0900
+++ ./configure.ac	2010-10-06 14:16:09.000000000 +0900
@@ -440,12 +440,7 @@
 dnl	      [  --enable-xom            build and install XOM library.],
 dnl	      XOM="$enableval")
 
-SHLIB_EXT=".so"
-case $host_os in
-darwin* | rhapsody*)
-  SHLIB_EXT=".dylib";;
-esac
-AC_DEFINE_UNQUOTED(DLOPEN_SHLIB_EXT, "$SHLIB_EXT",
+AC_DEFINE_UNQUOTED(DLOPEN_SHLIB_EXT, ".so",
 		   [Define to loadable module extention])
 
 AC_CONFIG_FILES([Makefile intl/Makefile po/Makefile.in
--- ./configure.org	2010-10-05 09:19:51.000000000 +0900
+++ ./configure	2010-10-06 14:17:23.000000000 +0900
@@ -19587,14 +19587,8 @@
 CPPFLAGS="$CPPFLAGS $X_CFLAGS"
 
 
-SHLIB_EXT=".so"
-case $host_os in
-darwin* | rhapsody*)
-  SHLIB_EXT=".dylib";;
-esac
-
 cat >>confdefs.h <<_ACEOF
-#define DLOPEN_SHLIB_EXT "$SHLIB_EXT"
+#define DLOPEN_SHLIB_EXT ".so"
 _ACEOF