fex: 2511 -> 2512 (#468350)

pkgs/by-name/fe/fex/package.nix

@@ -95,13 +95,13 @@ let
 in
 llvmPackages.stdenv.mkDerivation (finalAttrs: {
   pname = "fex";
-  version = "2511";
+  version = "2512";
 
   src = fetchFromGitHub {
     owner = "FEX-Emu";
     repo = "FEX";
     tag = "FEX-${finalAttrs.version}";
-    hash = "sha256-CulENHssPkCXI+oyVKwf3GN5bjxUok2+AHsoOQ+Mchc=";
+    hash = "sha256-G61FdzNctTp8jarTcnBXd+MQpMxnPqd33hblvi9UXNo=";
 
     leaveDotGit = true;
     postFetch = ''
@@ -192,7 +192,6 @@ llvmPackages.stdenv.mkDerivation (finalAttrs: {
   cmakeFlags = [
     (lib.cmakeFeature "USE_LINKER" "lld")
     (lib.cmakeFeature "OVERRIDE_VERSION" finalAttrs.version)
-    (lib.cmakeBool "BUILD_TESTING" finalAttrs.finalPackage.doCheck)
     (lib.cmakeBool "BUILD_THUNKS" true)
     (lib.cmakeBool "BUILD_FEXCONFIG" withQt)
     (lib.cmakeFeature "X86_32_TOOLCHAIN_FILE" "${toolchain32}")
@@ -202,8 +201,21 @@ llvmPackages.stdenv.mkDerivation (finalAttrs: {
 
   strictDeps = true;
 
-  # Unsupported on non-4K page size kernels (e.g. Apple Silicon)
+  # Running the tests isn't supported on non-4K pagesize systems, but the build
+  # itself doesn't require 4K pagesize. So, to avoid breaking the build, enable
+  # checkPhase by default (so that the check inputs are included) and then
+  # manually disable it if we're running on a non-4K pagesize system.
   doCheck = true;
+  preConfigure = ''
+    if [ "$(getconf PAGESIZE)" != "4096" ]; then
+      echo "Disabling checkPhase due to non-4K pagesize environment"
+      unset doCheck
+      cmakeFlagsArray+=("-DBUILD_TESTING:BOOL=FALSE")
+    else
+      echo "Keeping checkPhase as-is"
+      cmakeFlagsArray+=("${lib.cmakeBool "BUILD_TESTING" finalAttrs.doCheck}")
+    fi
+  '';
 
   nativeCheckInputs = [ nasm ];
   checkInputs = [ catch2_3 ];