Re: Use system extensions conditionally?

[Paul Eggert]

Fredrik Tolf wrote:
> isn't it still ugly to have to use AC_USE_SYSTEM_EXTENSIONS always

Part of the problem is that people occasionally need to set compiler 
options saying "I want C99" (or whatever), and these options sometimes 
disable parts of the default environment (to conform to C99 or 
whatever), and so one needs to turn on extensions anyway, just to get 
the default environment back (plus some more, but the differences don't 
matter).