Re: AC_PROG_CC_C99

[Kevin P. Fleming]

Paul Eggert wrote:

> Can you test Autoconf with 'gcc -std=c99 -pedantic-errors -Werror'?
> That might catch some of the problems we're worried about.

I don't currently use C99-isms in my projects, because I didn't have a 
clean way to test for compatibility in my distributions. That's why I'm 
glad to see this macro (and related changes) moving ahead, so I can feel 
free to start using C99 features without worry (other than users may be 
forced to upgrade their systems to support C99 if they have old 
compilers, but at least they'll know at configure time).