This is the build failure of GNAT 4.6.x on Windows. The patch was posted in
September of last year: http://gcc.gnu.org/ml/gcc/2010-09/msg00228.html
Applied on the mainline and 4.6 branch.
2011-07-14 Florian Weimer <f...@deneb.enyo.de>
PR ada/48711
* g-socthi-mingw.adb (Fill): Guard against invalid MSG_WAITALL.
--
Eric Botcazou
Index: g-socthi-mingw.adb
===================================================================
--- g-socthi-mingw.adb (revision 176261)
+++ g-socthi-mingw.adb (working copy)
@@ -277,7 +277,8 @@ package body GNAT.Sockets.Thin is
use type C.size_t;
Fill : constant Boolean :=
- (C.unsigned (Flags) and SOSC.MSG_WAITALL) /= 0;
+ SOSC.MSG_WAITALL /= -1
+ and then (C.unsigned (Flags) and SOSC.MSG_WAITALL) /= 0;
-- Is the MSG_WAITALL flag set? If so we need to fully fill all vectors
Res : C.int;
