strict-aliasing rules warnings

[zea]

This is the output at the end of the installation process in a gentoo amd64 box:

 * QA Notice: Package has poor programming practices which may compile
 * fine but exhibit random runtime failures.
 * ./util/glib-list-iterators.h:47: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * ./util/glib-list-iterators.h:47: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * ./util/glib-list-iterators.h:47: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * ./util/glib-list-iterators.h:47: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * extension/script/inkscape_perl_wrap.cpp:1005: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * extension/script/inkscape_perl_wrap.cpp:1031: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * extension/script/inkscape_perl_wrap.cpp:1058: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * extension/script/inkscape_perl_wrap.cpp:1084: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * extension/script/inkscape_perl_wrap.cpp:1109: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * extension/script/inkscape_perl_wrap.cpp:1134: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * extension/script/inkscape_perl_wrap.cpp:1160: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * extension/script/inkscape_perl_wrap.cpp:1186: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * extension/script/inkscape_perl_wrap.cpp:1211: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * libgdl/gdl-dock-object.c:619: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * libgdl/gdl-dock-object.c:637: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * libgdl/gdl-dock-tablabel.c:182: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * libgdl/gdl-dock-tablabel.c:193: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * ./util/glib-list-iterators.h:47: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * ./util/glib-list-iterators.h:47: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * libnrtype/Layout-TNG-Output.cpp:393: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * libnrtype/Layout-TNG-Output.cpp:395: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * ./util/glib-list-iterators.h:47: warning: dereferencing type-punned pointer will break strict-aliasing rules
 * ./util/glib-list-iterators.h:47: warning: dereferencing type-punned pointer will break strict-aliasing rules

 * Please do not file a Gentoo bug and instead report the above QA
 * issues directly to the upstream developers of this software.
 * Homepage: http://www.inkscape.org/

Attached is the full compilation log.

[jazzynico (jazzynico)]

* util/glib-list-iterators.h is fixed as of revision 7338 (released in 0.48).
* extension/script/inkscape_perl_wrap.cpp no longer exists.
* libnrtype/Layout-TNG-Output.cpp warning not reproduced on Ubuntu 10.10, inkscape trunk revision 10190.

The libgdl files still show warnings (missing initializer and unused parameters) that are not related to this issue.

Could you please confirm it's now fixed for you too?
Thanks!

[su_v (suv-lp)]

JazzyNico wrote on 2011-04-22
> Could you please confirm it's now fixed for you too?

Is this still an issue with current Inkscape (0.48.3.1) on Gentoo?

[su_v (suv-lp)]

Likely a duplicate of this earlier report:
Bug #168548 (sf1697910) “inkscape-0.45.1 breaks strict aliasing rules”
<https://bugs.launchpad.net/inkscape/+bug/168548>

[jazzynico (jazzynico)]

Marked Bug #168548 duplicate. Bug #323414 is a bit more up to date.

[jazzynico (jazzynico)]

jazzynico>* libnrtype/Layout-TNG-Output.cpp warning not reproduced on Ubuntu 10.10, inkscape trunk revision 10190.

Reproduced on Debian Wheezy, Inkscape trunk revision 11595.

[jazzynico (jazzynico)]

Warning fix in Layout-TNG-output.cpp in progress.
Targetting 0.48.x (only affects debugging and not active code - can be activated in sp-text.cpp and sp-flowtext.cpp).

[jazzynico (jazzynico)]

Layout-TNG-output.cpp fixed in the trunk (11601) and branch (9904).

[jazzynico (jazzynico)]

No more strict-aliasing warning in the trunk, but some remaining in the branch.