[Mesa-stable] [Mesa-dev] [PATCH] configure.ac: Require LLVM for r300 only on x86 and x86_64

[Marek Olšák]

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

On Jan 26, 2017 12:13 PM, "Andreas Boll" <andreas.boll.dev at gmail.com> wrote:

> b3119a3 introduced a strict LLVM requirement for r300 on all
> architectures and thus configure fails on architectures where LLVM is
> not available or buggy.
>
> r300 doesn't strictly require LLVM, but for performance reasons we
> highly recommend LLVM usage. So require it at least on x86 and x86_64
> architectures as we have done before b3119a3.
>
> Fixes: b3119a3 ("configure.ac: Check gallium LLVM version in
> gallium_require_llvm")
> Cc: 17.0 <mesa-stable at lists.freedesktop.org>
> Signed-off-by: Andreas Boll <andreas.boll.dev at gmail.com>
> ---
>  configure.ac | 15 ++++++++++++++-
>  1 file changed, 14 insertions(+), 1 deletion(-)
>
> diff --git a/configure.ac b/configure.ac
> index 64ace9d..b35adc8 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -2213,6 +2213,19 @@ gallium_require_llvm() {
>  }
>
>  dnl
> +dnl r300 doesn't strictly require LLVM, but for performance reasons we
> +dnl highly recommend LLVM usage. So require it at least on x86 and x86_64
> +dnl architectures.
> +dnl
> +r300_require_llvm() {
> +    case "$host" in *gnux32) return;; esac
> +    case "$host_cpu" in
> +    i*86|x86_64|amd64) gallium_require_llvm $1
> +        ;;
> +    esac
> +}
> +
> +dnl
>  dnl DRM is needed by X, Wayland, and offscreen rendering.
>  dnl Surfaceless is an alternative for the last one.
>  dnl
> @@ -2298,7 +2311,7 @@ if test -n "$with_gallium_drivers"; then
>              HAVE_GALLIUM_R300=yes
>              PKG_CHECK_MODULES([RADEON], [libdrm_radeon >=
> $LIBDRM_RADEON_REQUIRED])
>              require_libdrm "r300"
> -            gallium_require_llvm "r300"
> +            r300_require_llvm "r300"
>              ;;
>          xr600)
>              HAVE_GALLIUM_R600=yes
> --
> 2.1.4
>
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