Re: AC_PROG_CC_C99

[Bob Friesenhahn]

On Thu, 2 Dec 2004, Kevin P. Fleming wrote:

> 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).

Please take care.  The notion that "Users may be forced to upgrade 
their systems to support C99" makes it sound like this is a trivial 
task.  This is not always possible, and even if GCC supports a 
particular system, the user may not be personally capable of updating 
GCC or installing GCC from scratch.

A substantial percentage of the current computing base does not yet 
have a C99-capable compiler installed.

Bob
======================================
Bob Friesenhahn
address@hidden
http://www.simplesystems.org/users/bfriesen