compile whith GCC 8.4.0 about ptlib

[willamowius]

I have seen GCC 8 work at least on some Linux distributions. What OS / version do you see this issue on ?

[blithe2015]

ubuntu 18.04 , compile openwrt ,package version at : 6411e77

[willamowius]

Hmm, my Ubuntu 18.04 ships with GCC 7.4.0 which compiles PTLib fine and I don't see a GCC 8 packet in the Ubuntu repo.
Also, I don't see where https://github.com/openwrt/openwrt is using PTLib.

[blithe2015]

It seems that the version at that time is indeed not compatible with gcc8.0 and above. Many glibc functions have been abandoned.

[willamowius]

Please update to the current version.