Re: [ft-devel] Bug on PowerPC: Illegal Intruction in FT_Get_Name_Index (worksforme)

[Clemens Koller]

Hello, Christian!
(please post to the list also...)

Okay, that was a good point:

In an old changelog, Christian found:
http://rpm.sh-linux.org/rpm-index-2004/sh4/freetype-devel-2.1.7-4.sh4.html

>  Wed Mar 10 2004 Mike A. Harris <address@hidden> 2.1.7-3
>   - Added -fno-strict-aliasing to CFLAGS and CXXFLAGS to try to fix SEGV and
>     SIGILL crashes in mkfontscale which have been traced into freetype and 
seem
>     to be caused by aliasing issues in freetype macros (#118021)

Okay, here is my latest buildlog:

        cd <..>/freetype-2.1.9
        export CFLAGS=-fno-strict-aliasing
        export CXXFLAGS=-fno-strict-aliasing
        (export DEBUG_HINTER=                   enables debugging and tests? 
(see makefiles))
        ./configure --prefix=/usr
        make
        su
        make install
        cd <..>/xc/programs/mkfontscale
        make clean
        make
        ls -l Type1
                -rw-r--r--    1 clemens  users       75363 Apr  9 21:11 
UTBI____.pfa
        ./mkfontscale Type1
        less Type1/fonts.scale
                3
                UTBI____.pfa -adobe-utopia-bold-i-normal--0-0-0-0-p-0-ascii-0
                UTBI____.pfa -adobe-utopia-bold-i-normal--0-0-0-0-p-0-iso10646-1
                UTBI____.pfa -adobe-utopia-bold-i-normal--0-0-0-0-p-0-iso8859-1

Voila! mkfontscale works!
The solution use -fno-strict-aliasing

There are more references to this problem:
http://lists.freedesktop.org/pipermail/x-packagers/2004-March/000010.html
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=118021

So, my conclusion is (read the bugzilla report) that there still might
be a bug either in freetype or in gcc.

So, what's next? Do you consider to patch the makefiles (Jamfiles)
of freetype if we build on <some special>-ppc32 platforms?
Why does it fail if I don't use -fno-strict-aliasing?

Currently, this is in a -works-for-me- state!

Best greets,

Clemens Koller
_______________________________
R&D Imaging Devices
Anagramm GmbH
Rupert-Mayer-Str. 45/1
81379 Muenchen
Germany

http://www.anagramm.de
Phone: +49-89-741518-50
Fax: +49-89-741518-19

Christian Demmer wrote:
> Guten Tag,
>
> ich habe gerade nochmal ein bißchen rumgesucht, dabei habe ich in:
> <http://rpm.sh-linux.org/rpm-index-2004/sh4/freetype-devel-2.1.7-4.sh4.
> html>
>
> folgendes gefunden:
>
>  Wed Mar 10 2004 Mike A. Harris <address@hidden> 2.1.7-3
>   - Added -fno-strict-aliasing to CFLAGS and CXXFLAGS to try to fix SEGV and
>     SIGILL crashes in mkfontscale which have been traced into freetype and 
seem
>     to be caused by aliasing issues in freetype macros (#118021)
>
> Vielleicht ist es einen Versuch wert.
>
> Viele Grüße, Christian
>