[Bug bootstrap/56703] problems with strsignal and maybe strstr due to varying const on return type

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56703

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Try building a supported version of GCC. Nobody is going to fix anything in gcc
4.8.x now.

The errors you;re getting are not the same as the ones on SunOS, I suspect
you've copied a built GCC from one machine to another machine with a different
libc. That won't work, you need to build GCC for the specific machine.