1 files changed, 3 insertions, 1 deletions
diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index e77c45871e..5d905a83d7 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -243,7 +243,7 @@ SRC
     print "no\n"
     return false
   end
-  header.tr!("a-z./\055", "A-Z___")
+  header.tr!("a-z\055./", "A-Z___")
   $defs.push(format("-DHAVE_%s", header))
   print "yes\n"
   return true
@@ -367,6 +367,8 @@ CXXFLAGS = $(CFLAGS)
 DLDFLAGS = #{$DLDFLAGS} #{$LDFLAGS}
 LDSHARED = #{CONFIG["LDSHARED"]} #{defflag}
 
+RUBY_INSTALL_NAME = #{CONFIG["RUBY_INSTALL_NAME"]}
+
 prefix = #{CONFIG["prefix"]}
 exec_prefix = #{CONFIG["exec_prefix"]}
 libdir = #{$libdir}