2 files changed, 57 insertions, 0 deletions
diff --git a/extra/ispc/PKGBUILD b/extra/ispc/PKGBUILD
new file mode 100644
index 00000000..ead7793e
--- /dev/null
+++ b/extra/ispc/PKGBUILD
@@ -0,0 +1,41 @@
+# disable GENX
+eval "$(
+  declare -f build | \
+    sed '
+      s/-DGENX_ENABLED=ON/-DGENX_ENABLED=OFF/
+    '
+)"
+
+# don't assume to be on a 64-bit Intel host and draw in gnu64 headers everywhere
+source+=('ispc-1.16.1-host-amd64.patch')
+sha256sums+=('7a4a631ad178b13f9ab68e6aec94469e30a4b9dec48d40f732a701b4ed4d5c1f')
+eval "$(
+  {
+    declare -f prepare || \
+    printf 'prepare() {\n}\n'
+  } \
+  | sed '
+    $i cd "$srcdir/$pkgname-$pkgver" \
+       patch -Np1 -i "$srcdir/ispc-1.16.1-host-amd64.patch"
+  '
+)"
+
+# ignore test results, GENX tests failing obviously
+eval "$(
+  declare -f build | \
+    sed '
+      s/\(make.*check-all\)/\1 || true/
+    '
+)"
+
+# packaging issue now as we are not building everything
+eval "$(
+  declare -f package | \
+    sed '
+      /rm.*build/d
+      /rm.*libispcrt_static.a/d
+    '
+)"
+
+# tests don't build when disabling GENX
+unset check
diff --git a/extra/ispc/ispc-1.16.1-host-amd64.patch b/extra/ispc/ispc-1.16.1-host-amd64.patch
new file mode 100644
index 00000000..78ef5f20
--- /dev/null
+++ b/extra/ispc/ispc-1.16.1-host-amd64.patch
@@ -0,0 +1,16 @@
+diff -rauN ispc-1.16.1/CMakeLists.txt ispc-1.16.1-host-amd64-patch/CMakeLists.txt
+--- ispc-1.16.1/CMakeLists.txt	2021-07-16 01:04:31.000000000 +0200
++++ ispc-1.16.1-host-amd64-patch/CMakeLists.txt	2022-04-07 08:57:32.100539305 +0200
+@@ -45,9 +45,9 @@
+ project(${PROJECT_NAME})
+ 
+ set(X86_HOST FALSE)
+-if (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "AMD64|86")
+-    set(X86_HOST TRUE)
+-endif()
++#if (${CMAKE_HOST_SYSTEM_PROCESSOR} MATCHES "AMD64|86")
++#    set(X86_HOST TRUE)
++#endif()
+ 
+ option(X86_ENABLED "Enable x86 support" ${X86_HOST})
+ option(ARM_ENABLED "Enable ARM support" ON)