* configure.in (ruby_cflags): separate from optflags [Bug #12409]

-fexcess-precision=standard and -fp-model precise are set to this now.

* configure.in (cflags): use ruby_cflags.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55142 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,10 @@
+Tue May 24 16:37:43 2016  NARUSE, Yui  <naruse@ruby-lang.org>
+
+	* configure.in (ruby_cflags): separate from optflags [Bug #12409]
+	  -fexcess-precision=standard and -fp-model precise are set to this now.
+
+	* configure.in (cflags): use ruby_cflags.
+
 Tue May 24 16:20:53 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* configure.in (ERRORFUNC, WARNINGFUNC): __error__ and __warning__

configure.in

@@ -967,9 +967,12 @@ if test "$GCC" = yes; then
     ])
 
     # disable fast-math
-    for oflag in -fno-fast-math -fexcess-precision=standard -fp-model\ precise; do
+    for oflag in -fno-fast-math; do
 	RUBY_TRY_CFLAGS($oflag, [RUBY_APPEND_OPTION(optflags, $oflag)])
     done
+    for oflag in -fexcess-precision=standard -fp-model\ precise; do
+	RUBY_TRY_CFLAGS($oflag, [RUBY_APPEND_OPTION(ruby_cflags, $oflag)])
+    done
 fi
 
 AC_ARG_WITH(opt-dir,
@@ -4219,7 +4222,8 @@ if test "${ARCH_FLAG}"; then
 fi
 warnflags="$rb_cv_warnflags"
 AC_SUBST(cppflags)dnl
-AC_SUBST(cflags, ["${orig_cflags:+$orig_cflags }"'${optflags} ${debugflags} ${warnflags}'])dnl
+AC_SUBST(ruby_cflags)dnl
+AC_SUBST(cflags, ["${orig_cflags:+$orig_cflags }${ruby_cflags:+$ruby_cflags }"'${optflags} ${debugflags} ${warnflags}'])dnl
 AC_SUBST(cxxflags, ["${orig_cxxflags:+$orig_cxxflags }"'${optflags} ${debugflags} ${warnflags}'])dnl
 AC_SUBST(optflags)dnl
 AC_SUBST(debugflags)dnl