Build gliff for aarch64 (#929)

gliff 0.3.0 compiles natively on aarch64 and its workspace tests pass;
its x86 SIMD paths have scalar fallbacks. openh264 only invokes nasm for
x86 targets, so nasm becomes an x86_64-only makedepend.

pkgbuilds/gliff/PKGBUILD

@@ -4,7 +4,7 @@ pkgname=gliff
 pkgver=0.3.0
 pkgrel=1
 pkgdesc='Hyprland remote desktop over SSH (GPU H.264, 4:4:4)'
-arch=('x86_64')
+arch=('x86_64' 'aarch64')
 url='https://github.com/omacom/gliff'
 license=('MIT' 'BSD-2-Clause')
 install='gliff.install'
@@ -24,7 +24,9 @@ depends=(
   'vulkan-icd-loader'
   'wayland'
 )
-makedepends=('cargo' 'pkgconf' 'nasm')
+makedepends=('cargo' 'pkgconf')
+# openh264 assembles its x86 kernels with nasm; aarch64 uses the C compiler.
+makedepends_x86_64=('nasm')
 optdepends=('vulkan-radeon: Vulkan compute on AMD'
             'vulkan-intel: Vulkan compute on Intel'
             'intel-media-driver: VA-API H.264 codec on Intel'