Merge pull request #213635 from alyssais/mesa-armv5tel

mesa: fix build for armv5tel

lib/systems/inspect.nix

@@ -81,8 +81,13 @@ rec {
     isMusl         = with abis; map (a: { abi = a; }) [ musl musleabi musleabihf muslabin32 muslabi64 ];
     isUClibc       = with abis; map (a: { abi = a; }) [ uclibc uclibceabi uclibceabihf ];
 
-    isEfi          = map (family: { cpu.family = family; })
-                       [ "x86" "arm" "riscv" ];
+    isEfi = [
+      { cpu = { family = "arm"; version = "6"; }; }
+      { cpu = { family = "arm"; version = "7"; }; }
+      { cpu = { family = "arm"; version = "8"; }; }
+      { cpu = { family = "riscv"; }; }
+      { cpu = { family = "x86"; }; }
+    ];
   };
 
   matchAnyAttrs = patterns:

pkgs/development/libraries/mesa/default.nix

@@ -39,7 +39,11 @@
       "amd" # AMD (aka RADV)
       "microsoft-experimental" # WSL virtualized GPU (aka DZN/Dozen)
       "swrast" # software renderer (aka Lavapipe)
-      "virtio-experimental" # QEMU virtualized GPU (aka VirGL)
+    ]
+    ++ lib.optionals (stdenv.hostPlatform.isAarch -> lib.versionAtLeast stdenv.hostPlatform.parsed.cpu.version "6") [
+      # QEMU virtualized GPU (aka VirGL)
+      # Requires ATOMIC_INT_LOCK_FREE == 2.
+      "virtio-experimental"
     ]
     ++ lib.optionals stdenv.isAarch64 [
       "broadcom" # Broadcom VC5 (Raspberry Pi 4, aka V3D)

pkgs/os-specific/linux/systemd/default.nix

@@ -93,6 +93,7 @@
 , withHwdb ? true
 , withImportd ? !stdenv.hostPlatform.isMusl
 , withLibBPF ? lib.versionAtLeast buildPackages.llvmPackages.clang.version "10.0"
+    && stdenv.hostPlatform.isAarch -> lib.versionAtLeast stdenv.hostPlatform.parsed.cpu.version "6" # assumes hard floats
     && !stdenv.hostPlatform.isMips64   # see https://github.com/NixOS/nixpkgs/pull/194149#issuecomment-1266642211
 , withLocaled ? true
 , withLogind ? true