id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
7095,warning: unrecognized __attribute__((__may_alias__)),1czajnik@…,Ion Gaztañaga,"Hello,

boost/move.hpp contains:
{{{
//Move emulation rv breaks standard aliasing rules so add workarounds for some compilers
#ifdef __GNUC__
   #define BOOST_MOVE_ATTRIBUTE_MAY_ALIAS __attribute__((__may_alias__))
#else
   #define BOOST_MOVE_ATTRIBUTE_MAY_ALIAS
#endif
}}}
and using {{{__attribute__((__may_alias__))}}} causes a warning on my TI compiler.

Would a fix by guarding against {{{__GNUC__>=4}}} be welcome, or are there some {{{__GNUC__=3}}} compilers, that need this pragma to be enabled?

{{{
Index: move.hpp
===================================================================
--- move.hpp	(revision 0)
+++ move.hpp	(revision 1)
@@ -217,7 +217,7 @@
 #if defined(BOOST_NO_RVALUE_REFERENCES) && !defined(BOOST_MOVE_DOXYGEN_INVOKED)
 
    //Move emulation rv breaks standard aliasing rules so add workarounds for some compilers
-   #ifdef __GNUC__
+   #if defined(__GNUC__) && (__GNUC__ >= 4)
       #define BOOST_MOVE_ATTRIBUTE_MAY_ALIAS __attribute__((__may_alias__))
    #else
       #define BOOST_MOVE_ATTRIBUTE_MAY_ALIAS
}}}

Regards,
Kris",Bugs,closed,To Be Determined,move,Boost 1.50.0,Problem,fixed,,