Try to fix Windows build

ujit_compile.c

@@ -512,7 +512,7 @@ rb_ujit_enabled_p(void)
 void
 rb_ujit_init(void)
 {
-    if (!ujit_scrape_successful && PLATFORM_SUPPORTED_P) {
+    if (!ujit_scrape_successful || !PLATFORM_SUPPORTED_P) {
         return;
     }
     // Initialize the code blocks

win32/Makefile.sub

@@ -1347,7 +1347,7 @@ $(MJIT_PRECOMPILED_HEADER): $(MJIT_PRECOMPILED_HEADER_NAME)
 	$(Q) $(MAKE_LINK) $(MJIT_PRECOMPILED_HEADER_NAME:.pch=.pdb) $(arch_hdrdir)/$(MJIT_PRECOMPILED_HEADER_NAME:.pch=.pdb)
 
 INSNS	= opt_sc.inc optinsn.inc optunifs.inc insns.inc insns_info.inc \
-	  vmtc.inc vm.inc mjit_compile.inc
+	  vmtc.inc vm.inc mjit_compile.inc ujit_examples.inc
 
 !if [exit > insns_rules.mk]
 !else if [for %I in ($(INSNS)) do \