Comment 4 for bug 597869

ekiga FTBFS:
...
checking for PTLIB... no
configure: error: Package requirements (ptlib >= 2.6.7) were not met:

Requested 'ptlib >= 2.6.7' but version of ptlib is 2.6.5

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables PTLIB_CFLAGS
and PTLIB_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.
make: *** [build-stamp] Error 1

ptlib should be merged/synced before ekiga.

Thanks,
Fabrice