[PATCH 2/8] -pendantic is too pendantic

[Gaetan Nadon]

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.

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)
      --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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