Index: configure.ac
===================================================================
--- configure.ac	(revision 63540)
+++ configure.ac	(working copy)
@@ -3766,6 +3766,9 @@ AS_CASE("$enable_shared", [yes], [
 	SOLIBS='-lm -lc'
 	],
     [darwin*], [
+	LIBRUBY_SO='lib$(RUBY_SO_NAME).$(SOEXT)'
+	LIBRUBY_SONAME='$(LIBRUBY_SO)'
+	LIBRUBY_ALIASES='lib$(RUBY_INSTALL_NAME).$(SOEXT) lib$(RUBY_BASE_NAME).$(RUBY_API_VERSION).$(SOEXT)'
 	LIBRUBY_LDSHARED='$(CC) -dynamiclib'
 	AS_IF([test "$load_relative" = yes], [
 	    libprefix="@executable_path/../${libdir_basename}"
@@ -3780,9 +3783,6 @@ AS_CASE("$enable_shared", [yes], [
 	    LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "'-Wl,-unexported_symbol,*_threadptr_*'
 	])
 	LIBRUBY_DLDFLAGS="$LIBRUBY_DLDFLAGS "' $(XLDFLAGS)'
-	LIBRUBY_SO='lib$(RUBY_SO_NAME).$(SOEXT)'
-	LIBRUBY_SONAME='lib$(RUBY_BASE_NAME).$(RUBY_API_VERSION).$(SOEXT)'
-	LIBRUBY_ALIASES='$(LIBRUBY_SONAME) lib$(RUBY_INSTALL_NAME).$(SOEXT)'
 	SOLIBS='$(LIBS)'
 	],
     [interix*], [