diff --git a/ChangeLog b/ChangeLog
index 8e9648960d..9d5cee9d2f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Wed Aug 15 04:59:15 2001  Akinori MUSHA  <knu@iDaemons.org>
+
+	* ext/digest/*/extconf.rb: really fix so that they build from any
+	  directory.
+
 Wed Aug 15 04:04:02 2001  Akinori MUSHA  <knu@iDaemons.org>
 
 	* ext/digest/sha2/extconf.rb: fix so that they build from any
diff --git a/ext/digest/md5/extconf.rb b/ext/digest/md5/extconf.rb
index 0d3b1ca7ea..93a14025d0 100644
--- a/ext/digest/md5/extconf.rb
+++ b/ext/digest/md5/extconf.rb
@@ -1,9 +1,9 @@
-# $RoughId: extconf.rb,v 1.1 2001/07/13 15:38:27 knu Exp $
+# $RoughId: extconf.rb,v 1.3 2001/08/14 19:54:51 knu Exp $
 # $Id$
 
 require "mkmf"
 
-$CFLAGS << " -DHAVE_CONFIG_H -I$(srcdir)/.."
+$CFLAGS << " -DHAVE_CONFIG_H -I#{File.dirname(__FILE__)}/.."
 
 $objs = [
   "md5.#{$OBJEXT}",
diff --git a/ext/digest/rmd160/extconf.rb b/ext/digest/rmd160/extconf.rb
index a1b178acb7..ce53c77b55 100644
--- a/ext/digest/rmd160/extconf.rb
+++ b/ext/digest/rmd160/extconf.rb
@@ -1,9 +1,9 @@
-# $RoughId: extconf.rb,v 1.1 2001/07/13 15:38:27 knu Exp $
+# $RoughId: extconf.rb,v 1.3 2001/08/14 19:54:51 knu Exp $
 # $Id$
 
 require "mkmf"
 
-$CFLAGS << " -DHAVE_CONFIG_H -I$(srcdir)/.."
+$CFLAGS << " -DHAVE_CONFIG_H -I#{File.dirname(__FILE__)}/.."
 
 $objs = [
   "rmd160.#{$OBJEXT}",
diff --git a/ext/digest/sha1/extconf.rb b/ext/digest/sha1/extconf.rb
index 9ab198110a..45e374e369 100644
--- a/ext/digest/sha1/extconf.rb
+++ b/ext/digest/sha1/extconf.rb
@@ -1,9 +1,9 @@
-# $RoughId: extconf.rb,v 1.1 2001/07/13 15:38:27 knu Exp $
+# $RoughId: extconf.rb,v 1.3 2001/08/14 19:54:51 knu Exp $
 # $Id$
 
 require "mkmf"
 
-$CFLAGS << " -DHAVE_CONFIG_H -I$(srcdir)/.."
+$CFLAGS << " -DHAVE_CONFIG_H -I#{File.dirname(__FILE__)}/.."
 
 $objs = [
   "sha1.#{$OBJEXT}",
diff --git a/ext/digest/sha2/extconf.rb b/ext/digest/sha2/extconf.rb
index dce1115bf8..f593c79111 100644
--- a/ext/digest/sha2/extconf.rb
+++ b/ext/digest/sha2/extconf.rb
@@ -1,9 +1,9 @@
-# $RoughId: extconf.rb,v 1.1 2001/07/13 15:38:27 knu Exp $
+# $RoughId: extconf.rb,v 1.4 2001/08/14 19:54:51 knu Exp $
 # $Id$
 
 require "mkmf"
 
-$CFLAGS << " -DHAVE_CONFIG_H -I$(srcdir)/.."
+$CFLAGS << " -DHAVE_CONFIG_H -I#{File.dirname(__FILE__)}/.."
 
 $objs = [
   "sha2.#{$OBJEXT}",
@@ -17,8 +17,8 @@ have_header("inttypes.h")
 
 have_header("unistd.h")
 
-if try_run(<<SRC, $defs.join(' ') + " -I#{$srcdir}")
-#include "../defs.h"
+if try_run(<<SRC, $defs.join(' '))
+#include "defs.h"
 int main(void) {
 #ifdef NO_UINT64_T
     return 1;