package/llvm: fix host compile with gcc-13

Add upstream patch to fix host compile error on openSUSE Tumbleweed
(gcc-13.0.1).

Fixes:

  .../build/host-llvm-11.1.0/include/llvm/Support/Signals.h:117:8: error: variable or field ‘CleanupOnSignal’ declared void
    117 |   void CleanupOnSignal(uintptr_t Context);
        |        ^~~~~~~~~~~~~~~
  .../build/host-llvm-11.1.0/include/llvm/Support/Signals.h:117:24: error: ‘uintptr_t’ was not declared in this scope
    117 |   void CleanupOnSignal(uintptr_t Context);
        |                        ^~~~~~~~~
  .../build/host-llvm-11.1.0/include/llvm/Support/Signals.h:18:1: note: ‘uintptr_t’ is defined in header ‘<cstdint>’; did you forget to ‘#include <cstdint>’?
     17 | #include <string>
    +++ |+#include <cstdint>
     18 |

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/llvm/0002-Add-missing-cstdint-header-to-Signals.h.patch

@@ -0,0 +1,34 @@
+From c6c71ab47d658ab8f84e6a6066d476fd9632bbca Mon Sep 17 00:00:00 2001
+From: Sergei Trofimovich <slyich@gmail.com>
+Date: Mon, 23 May 2022 08:03:23 +0100
+Subject: [PATCH] Add missing <cstdint> header to Signals.h
+
+Without the change llvm build fails on this week's gcc-13 snapshot as:
+
+    [  0%] Building CXX object lib/Support/CMakeFiles/LLVMSupport.dir/Signals.cpp.o
+    In file included from llvm/lib/Support/Signals.cpp:14:
+    llvm/include/llvm/Support/Signals.h:119:8: error: variable or field 'CleanupOnSignal' declared void
+      119 |   void CleanupOnSignal(uintptr_t Context);
+          |        ^~~~~~~~~~~~~~~
+
+Upstream: https://github.com/llvm/llvm-project/commit/ff1681ddb303223973653f7f5f3f3435b48a1983.patch
+Signed-off-by: Peter Seiderer <ps.report@gmx.net>
+---
+ include/llvm/Support/Signals.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/include/llvm/Support/Signals.h b/include/llvm/Support/Signals.h
+index e0a18e72..148216b8 100644
+--- a/include/llvm/Support/Signals.h
++++ b/include/llvm/Support/Signals.h
+@@ -14,6 +14,7 @@
+ #ifndef LLVM_SUPPORT_SIGNALS_H
+ #define LLVM_SUPPORT_SIGNALS_H
+ 
++#include <cstdint>
+ #include <string>
+ 
+ namespace llvm {
+-- 
+2.40.1
+