win32/Makefile.sub: install precompiled header to prefix

This is needed to run JIT from the installed ruby binary.

Even after this, we're hitting another error though.

start compilation: a@-e:1 -> C:\Users\k0kubun\AppData\Local\Temp/_ruby_mjit_p9712u0.c
Starting process: cl cl -nologo -LD -DMJIT_HEADER -MD -Zi -W2 -wd4100 -wd4127 -wd4210 -wd4214 -wd4255 -wd4574 -wd4668 -wd4710 -wd4711 -wd4820 -wd4996 -we4028 -we4142 -O2sy- -Zm600 -DRUBY_EXPORT -I. -I.ext/include/x64-mswin64_140 -I../ruby/include -I../ruby -I../ruby/enc/unicode/10.0.0 -DRUBY_DEVEL=1 -DCANONICALIZATION_FOR_MATHN -D_WIN32_WINNT=0x0600 -FeC:\Users\k0kubun\AppData\Local\Temp/_ruby_mjit_p9712u0.so -FoC:\Users\k0kubun\AppData\Local\Temp/_ruby_mjit_p9712u0.obj -YuC:/usr/include/ruby-2.6.0/x64-mswin64_140/rb_mjit_header-2.6.0.pch C:/usr/include/ruby-2.6.0/x64-mswin64_140/rb_mjit_header-2.6.0.obj -TcC:\Users\k0kubun\AppData\Local\Temp/_ruby_mjit_p9712u0.c -link -LIBPATH:C:/usr/lib x64-vcruntime140-ruby260.lib -incremental:no -debug -opt:ref -opt:icf -dll
_ruby_mjit_p9712u0.c
C:\Users\k0kubun\AppData\Local\Temp/_ruby_mjit_p9712u0.c(1): error C2859: C:\usr\bin\vc140.pdb is not the pdb file that was used when this precompiled header was created, recreate the precompiled header.
compile_c_to_so: compile error: 2
Failed to generate so: C:\Users\k0kubun\AppData\Local\Temp/_ruby_mjit_p9712u0.so


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64947 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

win32/Makefile.sub

@@ -1299,6 +1299,8 @@ $(MJIT_PRECOMPILED_HEADER): $(MJIT_PRECOMPILED_HEADER_NAME)
 	$(Q) $(MAKEDIRS) $(MJIT_HEADER_INSTALL_DIR)
 	$(Q) $(MAKE_LINK) $(MJIT_PRECOMPILED_HEADER_NAME) $@
 	$(Q) $(MAKE_LINK) $(MJIT_PRECOMPILED_HEADER_NAME:.pch=.)$(OBJEXT) $(MJIT_HEADER_INSTALL_DIR)/$(MJIT_PRECOMPILED_HEADER_NAME:.pch=.)$(OBJEXT)
+	$(Q) $(MAKE_LINK) $(MJIT_PRECOMPILED_HEADER_NAME) $(prefix)/$@
+	$(Q) $(MAKE_LINK) $(MJIT_PRECOMPILED_HEADER_NAME:.pch=.)$(OBJEXT) $(prefix)/$(MJIT_HEADER_INSTALL_DIR)/$(MJIT_PRECOMPILED_HEADER_NAME:.pch=.)$(OBJEXT)
 
 INSNS	= opt_sc.inc optinsn.inc optunifs.inc insns.inc insns_info.inc \
 	  vmtc.inc vm.inc mjit_compile.inc