diff --git a/ChangeLog b/ChangeLog
index 3a05762c55..8e9648960d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Aug 15 04:04:02 2001  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/digest/sha2/extconf.rb: fix so that they build from any
+	  directory.
+
 Wed Aug 15 01:59:19 2001  Akinori MUSHA  <knu@iDaemons.org>
 
 	* ext/digest/defs.h: Define NO_UINT64_T instead of emitting an
diff --git a/ext/digest/sha2/extconf.rb b/ext/digest/sha2/extconf.rb
index 412b2d4301..dce1115bf8 100644
--- a/ext/digest/sha2/extconf.rb
+++ b/ext/digest/sha2/extconf.rb
@@ -17,7 +17,7 @@ have_header("inttypes.h")
 
 have_header("unistd.h")
 
-if try_run(<<SRC, $defs.join(' '))
+if try_run(<<SRC, $defs.join(' ') + " -I#{$srcdir}")
 #include "../defs.h"
 int main(void) {
 #ifdef NO_UINT64_T