4 files changed, 8 insertions, 4 deletions
diff --git a/ext/digest/md5/extconf.rb b/ext/digest/md5/extconf.rb
index f1dd9122b4..5a57fd3eea 100644
--- a/ext/digest/md5/extconf.rb
+++ b/ext/digest/md5/extconf.rb
@@ -1,3 +1,4 @@
+# -*- coding: us-ascii -*-
 # $RoughId: extconf.rb,v 1.3 2001/08/14 19:54:51 knu Exp $
 # $Id$
 
@@ -10,7 +11,7 @@ $objs = [ "md5init.#{$OBJEXT}" ]
 
 dir_config("openssl")
 pkg_config("openssl")
-require_relative '../../openssl/deprecation'
+require File.expand_path('../../../openssl/deprecation', __FILE__)
 
 if !with_config("bundled-md5") &&
     have_library("crypto") && OpenSSL.check_func("MD5_Transform", "openssl/md5.h")
diff --git a/ext/digest/rmd160/extconf.rb b/ext/digest/rmd160/extconf.rb
index b7aed39ef9..d487d6da80 100644
--- a/ext/digest/rmd160/extconf.rb
+++ b/ext/digest/rmd160/extconf.rb
@@ -1,3 +1,4 @@
+# -*- coding: us-ascii -*-
 # $RoughId: extconf.rb,v 1.3 2001/08/14 19:54:51 knu Exp $
 # $Id$
 
@@ -10,7 +11,7 @@ $objs = [ "rmd160init.#{$OBJEXT}" ]
 
 dir_config("openssl")
 pkg_config("openssl")
-require_relative '../../openssl/deprecation'
+require File.expand_path('../../../openssl/deprecation', __FILE__)
 
 if !with_config("bundled-rmd160") &&
     have_library("crypto") && OpenSSL.check_func("RMD160_Transform", "openssl/ripemd.h")
diff --git a/ext/digest/sha1/extconf.rb b/ext/digest/sha1/extconf.rb
index a4d5bbcf48..d7e52fe731 100644
--- a/ext/digest/sha1/extconf.rb
+++ b/ext/digest/sha1/extconf.rb
@@ -1,3 +1,4 @@
+# -*- coding: us-ascii -*-
 # $RoughId: extconf.rb,v 1.3 2001/08/14 19:54:51 knu Exp $
 # $Id$
 
@@ -10,7 +11,7 @@ $objs = [ "sha1init.#{$OBJEXT}" ]
 
 dir_config("openssl")
 pkg_config("openssl")
-require_relative '../../openssl/deprecation'
+require File.expand_path('../../../openssl/deprecation', __FILE__)
 
 if !with_config("bundled-sha1") &&
     have_library("crypto") && OpenSSL.check_func("SHA1_Transform", "openssl/sha.h")
diff --git a/ext/digest/sha2/extconf.rb b/ext/digest/sha2/extconf.rb
index 05d0b8de33..5ab2d35af5 100644
--- a/ext/digest/sha2/extconf.rb
+++ b/ext/digest/sha2/extconf.rb
@@ -1,3 +1,4 @@
+# -*- coding: us-ascii -*-
 # $RoughId: extconf.rb,v 1.4 2001/08/14 19:54:51 knu Exp $
 # $Id$
 
@@ -10,7 +11,7 @@ $objs = [ "sha2init.#{$OBJEXT}" ]
 
 dir_config("openssl")
 pkg_config("openssl")
-require_relative '../../openssl/deprecation'
+require File.expand_path('../../../openssl/deprecation', __FILE__)
 
 if !with_config("bundled-sha2") &&
     have_library("crypto") &&