[PATCH 2/8] -pendantic is too pendantic

[Ran Benita]

Hi Gaetan,

On Tue, Nov 26, 2013 at 07:02:23PM -0500, Gaetan Nadon wrote:
> On 13-11-26 06:33 PM, Ran Benita wrote:
> > This was already committed, but how about changing to AC_CC_C99 instead?
> Pardon me as I am out of context. The xserver module is configured with
> AC_PROG_CC_C99 that gets pulled in by XORG_DEFAULTS from util-macros.
> It's not obvious, but it saves from copying this line in the 250 xorg
> modules.

Problem is, xcb doesn't use util-macros. I like it myself.

> That's why we ask developers not to add AC_PROG_CC in configure.ac as it
> turns the module back to C89. That isn't obvious either :-)
> 
> To find which of the two a module is using:
> 
>     grep "^CC=" config.status
> 
> and you get:
> 
>     CC='gcc -std=gnu99'
> 
> 
> There are also a couple of options to fine tune the level of strictness:
> 
>       --disable-selective-werror
>                               Turn off selective compiler errors. (default:
>                               enabled)

Didn't know about this one, used to do this manually sometimes.

>       --enable-strict-compilation
>                               Enable all warnings from compiler and make
>     them
>                               errors (default: disabled)
> 
> I took this opportunity to explain this non obvious configuration to all.
> > pedantic _can_ be useful for XCB imo, e.g. the "enum too big for an int"
> > thing. Also, the code already uses some C99 constructs now.
> 

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