diff --git a/ChangeLog b/ChangeLog
index 6bf2a0e32d..3b1135d65e 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue Jan 20 14:48:28 2004  GOTOU Yuuzou  <gotoyuzo@notwork.org>
+
+	* ext/openssl/extconf.rb: should check <openssl/conf_api.h> instead
+	  of OPENSSL_VERSION_NUMBER. [ruby-list:39056]
+
 Tue Jan 20 14:43:17 2004  Dave Thomas  <dave@pragprog.com>
 
 	* lib/base64.rb: Add RDoc
diff --git a/ext/openssl/extconf.rb b/ext/openssl/extconf.rb
index afcb03816f..47fa722cf0 100644
--- a/ext/openssl/extconf.rb
+++ b/ext/openssl/extconf.rb
@@ -33,8 +33,6 @@ if with_config("debug") or enable_config("debug")
   end
 end
 
-
-
 message "=== Checking for system dependent stuff... ===\n"
 have_library("nsl", "t_open")
 have_library("socket", "socket")
@@ -58,13 +56,7 @@ if !result
   end
 end
 
-check_opensslv = <<_end_of_src_
-#include <openssl/opensslv.h>
-#if OPENSSL_VERSION_NUMBER < 0x0090600fL
-#  error too old
-#endif
-_end_of_src_
-if !try_compile(check_opensslv)
+unless have_header("openssl/conf_api.h")
   message "OpenSSL 0.9.6 or later required.\n"
   exit 1
 end