make/hotspot/gensrc/GensrcAdlc.gmk

rev 60628 : 8248498: Add build system support for Windows AArch64
Reviewed-by:
Contributed-by: mbeckwit, luhenry, burban

@@ -86,10 +86,14 @@
     ADLCFLAGS += -DLINUX=1 -D_GNU_SOURCE=1
   else ifeq ($(call isTargetOs, aix), true)
     ADLCFLAGS += -DAIX=1
   else ifeq ($(call isTargetOs, macosx), true)
     ADLCFLAGS += -D_ALLBSD_SOURCE=1 -D_GNU_SOURCE=1
+  else ifeq ($(call isTargetOs, windows), true)
+    ifeq ($(call isTargetCpuBits, 64), true)
+      ADLCFLAGS += -D_WIN64=1
+    endif
   endif
 
   ifeq ($(call isTargetOs, windows), false)
     # NOTE: Windows adlc flags was different in the old build. Is this really
     # correct?