From: Kai Tietz <ktietz@redhat.com>
Date: Mon, 7 Nov 2011 22:03:51 +0000 (+0100)
Subject: re PR target/51007 (Quadmath I/O doesn't work on MinGW)
X-Git-Tag: releases/gcc-4.7.0~2378
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=744bbef1e1044b510d7ff90313b25a07c6c794ab;p=thirdparty%2Fgcc.git

re PR target/51007 (Quadmath I/O doesn't work on MinGW)

        PR target/51007
        * quadmath-imp.h (ieee854_float128): Adjust
        for ms-bitfield layout.

From-SVN: r181125
---

diff --git a/libquadmath/ChangeLog b/libquadmath/ChangeLog
index 97c15b573bf9..73c2c420f003 100644
--- a/libquadmath/ChangeLog
+++ b/libquadmath/ChangeLog
@@ -1,3 +1,9 @@
+2011-11-07  Kai Tietz  <ktietz@redhat.com>
+
+	PR target/51007
+	* quadmath-imp.h (ieee854_float128): Adjust
+	for ms-bitfield layout.
+
 2011-11-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* printf/gmp-impl.h: Adapt path to longlong.h.
diff --git a/libquadmath/quadmath-imp.h b/libquadmath/quadmath-imp.h
index db34a92f08f3..bac714d1c8bf 100644
--- a/libquadmath/quadmath-imp.h
+++ b/libquadmath/quadmath-imp.h
@@ -48,6 +48,11 @@ typedef union
   __float128 value;
 
   struct
+#ifdef __MINGW32__
+  /* On mingw targets the ms-bitfields option is active by default.
+     Therefore enforce gnu-bitfield style.  */
+  __attribute__ ((gcc_struct))
+#endif
   {
 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
     unsigned negative:1;
@@ -89,6 +94,10 @@ typedef union
   } words32;
 
   struct
+#ifdef __MINGW32__
+  /* Make sure we are using gnu-style bitfield handling.  */
+  __attribute__ ((gcc_struct))
+#endif
   {
 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
     unsigned negative:1;