[RESEND][PATCH libdrm] configure.ac fix build error for config.h in autotools

[Eric Engestrom]

On Tuesday, 2019-02-26 10:00:56 +0900, Seung-Woo Kim wrote:
> After the commit 0926f0af54d6 ("meson,configure: include config.h
> automatically"), there is build error for autotools because
> config.h is not included. Fix the error by adding "-include
> config.h" to CPPFLAGS instead of CFLAGS from configure.ac.

Thanks!

Reviewed-by: Eric Engestrom <eric.engestrom at intel.com>
Fixes: 0926f0af54d654b1a958 "meson,configure: include config.h automatically"

I'll push it in moment.

> 
> Reference: https://bugs.freedesktop.org/show_bug.cgi?id=106561
> Signed-off-by: Seung-Woo Kim <sw0312.kim at samsung.com>
> ---
> It looks like missed from mailing list, so I resend.
> ---
>  configure.ac |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/configure.ac b/configure.ac
> index 7e7c8d3..d72e84a 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -541,7 +541,7 @@ else
>      AC_DEFINE(HAVE_VISIBILITY, 0)
>  fi
>  
> -CFLAGS="$CFLAGS -include config.h"
> +CPPFLAGS="$CPPFLAGS -include config.h"
>  
>  AC_SUBST(WARN_CFLAGS)
>  AC_CONFIG_FILES([
> -- 
> 1.7.4.1
>