* configure.in: Fix compilation error.

https://bugs.ruby-lang.org/issues/8358#note-16



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44896 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sun Feb  9 13:59:29 2014  Tanaka Akira  <akr@fsij.org>
+
+	* configure.in: Fix compilation error.
+	  https://bugs.ruby-lang.org/issues/8358#note-16
+
 Sun Feb  9 05:20:24 2014  NARUSE, Yui  <naruse@ruby-lang.org>
 
 	* configure.in (rb_cv_gnu_qsort_r): use compile error "conflicting

configure.in

@@ -867,8 +867,13 @@ if test "$GCC" = yes; then
 	[[i[4-6]86*]], [
 	    RUBY_TRY_CFLAGS(-msse2 -mfpmath=sse, [
 		RUBY_APPEND_OPTION(XCFLAGS, -msse2 -mfpmath=sse)
-		RUBY_TRY_CFLAGS(-mstackrealign, [RUBY_APPEND_OPTION(XCFLAGS, -mstackrealign)])
 	    ])
+            AS_CASE(["$XCFLAGS"],
+                [[*-msse2*]], [
+                    RUBY_TRY_CFLAGS(-mstackrealign, [
+                        RUBY_APPEND_OPTION(XCFLAGS, -mstackrealign)
+                    ])
+                ])
 	]
     )
 fi