diff --git a/ChangeLog b/ChangeLog
index 3924743b04..1df1d62966 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,8 @@ Mon Dec  3 16:06:57 2001  WATANABE Hirofumi  <eban@ruby-lang.org>
 
 	* ext/socket/extconf.rb: remove -L/usr/local/lib.
 
+	* configure.in: add -Wl,-export-dynamic on NetBSD.
+
 Mon Dec  3 16:04:16 2001  Usaku Nakamura <usa@ruby-lang.org>
 
 	* configure.in: not use X11BASE, since it's not always set.
diff --git a/configure.in b/configure.in
index 0ea72b10c9..4bba1828c6 100644
--- a/configure.in
+++ b/configure.in
@@ -607,7 +607,9 @@ if test "$with_dln_a_out" != yes; then
 			fi
 			rb_cv_dlopen=yes ;;
 	netbsd*)	LDSHARED='${CC} -shared'
-			LDFLAGS=""
+			if test "$rb_cv_binary_elf" = yes; then
+			    LDFLAGS="-Wl,-export-dynamic"
+			fi
 			rb_cv_dlopen=yes ;;
 	openbsd*) 	LDSHARED="ld -Bforcearchive -Bshareable"
 			rb_cv_dlopen=yes ;;