(In reply to comment #5)
> Getting closer ...
> 
> With "./configure --enable-32-bit --enable-debug CFLAGS="-m32"
> CXXFLAGS="-m32" LDFLAGS="-m32"" I now get as far as:
> 
>   CC       eglscreen.lo
>   CC       eglstring.lo
>   CC       eglsurface.lo
>   CC       eglsync.lo
>   CCLD     libEGL.la
> /bin/ld: skipping incompatible /usr/lib64/libudev.so when searching for
> -ludev
> /bin/ld: cannot find -ludev
> collect2: error: ld returned 1 exit status
> gmake[3]: *** [libEGL.la] Error 1
> gmake[3]: Leaving directory `/usr/local/src/Mesa-9.2.5/src/egl/main'
> gmake[2]: *** [all-recursive] Error 1
> gmake[2]: Leaving directory `/usr/local/src/Mesa-9.2.5/src/egl'
> gmake[1]: *** [all-recursive] Error 1
> gmake[1]: Leaving directory `/usr/local/src/Mesa-9.2.5/src'
> gmake: *** [all-recursive] Error 1
> 
> I'm not sure why it can't find udev:

Dunno... sorry. Is there a /usr/lib32/libudev.so.2?

> 
> $ rpm -qa | grep -i udev
> system-config-printer-udev-1.4.3-2.fc20.x86_64
> libgudev1-208-9.fc20.x86_64
> libgudev1-208-9.fc20.i686
> libgudev1-devel-208-9.fc20.x86_64
> libgudev1-devel-208-9.fc20.i686

You could also see if there are debug symbols available for your current rpm's
-- they are often supplied by the distro in a separate package. Hopefully the
thing generating the backtrace would know to look in the alternate locations
for them.