openjdk9-bootstrap: fix build with gcc12

srcpkgs/openjdk9-bootstrap/patches/fix-pointer-comparison-gcc12.patch

@@ -0,0 +1,22 @@
+--- a/hotspot/src/share/vm/opto/lcm.cpp
++++ b/hotspot/src/share/vm/opto/lcm.cpp
+@@ -60,7 +60,7 @@
+ // Check whether val is not-null-decoded compressed oop,
+ // i.e. will grab into the base of the heap if it represents NULL.
+ static bool accesses_heap_base_zone(Node *val) {
+-  if (Universe::narrow_oop_base() > 0) { // Implies UseCompressedOops.
++  if (Universe::narrow_oop_base() > (address)0) { // Implies UseCompressedOops.
+     if (val && val->is_Mach()) {
+       if (val->as_Mach()->ideal_Opcode() == Op_DecodeN) {
+         // This assumes all Decodes with TypePtr::NotNull are matched to nodes that
+--- a/hotspot/src/share/vm/memory/virtualspace.cpp
++++ b/hotspot/src/share/vm/memory/virtualspace.cpp
+@@ -581,7 +581,7 @@ ReservedHeapSpace::ReservedHeapSpace(siz
+   assert(markOopDesc::encode_pointer_as_mark(&_base[size])->decode_pointer() == &_base[size],
+          "area must be distinguishable from marks for mark-sweep");
+
+-  if (base() > 0) {
++  if (base() > (char*)0) {
+     MemTracker::record_virtual_memory_type((address)base(), mtJavaHeap);
+   }
+ }