https://svn.boost.org/trac10/ticket/7852 <p> These are the compilation warnings from Boost 1.49 on this platform: FreeBSD RELENG_8 i386 gcc 4.2.2/4.6.3 </p> <p> libs/python/src/list.cpp:16: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/long.cpp:12: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/long.cpp:19: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/long.cpp:26: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/dict.cpp:32: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/tuple.cpp:12: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/str.cpp:16: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/enum.cpp:150: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/class.cpp:211: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/class.cpp:319: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/class.cpp:473: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/class.cpp:621: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/class.cpp:631: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/function.cpp:108: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/function.cpp:110: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/life_support.cpp:94: warning: dereferencing type-punned pointer will break strict-aliasing rules libs/python/src/object/life_support.cpp:96: warning: dereferencing type-punned pointer will break strict-aliasing rules </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/7852 Trac 1.4.3 Ralf W. Grosse-Kunstleve Sat, 05 Jan 2013 19:27:49 GMT https://svn.boost.org/trac10/ticket/7852#comment:1 https://svn.boost.org/trac10/ticket/7852#comment:1 <ul> <li><strong>owner</strong> changed from <span class="trac-author">Ralf W. Grosse-Kunstleve</span> to <span class="trac-author">Vladimir Prus</span> </li> </ul> <p> Looks like -fno-strict-aliasing is missing. Could someone familiar with boost.build fix this (I'm not)? </p> Ticket