Remove version generation approach.

Makefile

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 248 matching lines @@
 NACL_BUILDS = $(foreach mode,$(MODES), \
                    $(addsuffix .$(mode),$(NACL_ARCHES)))
 # Generates corresponding test targets, e.g. "ia32.release.check".
 CHECKS = $(addsuffix .check,$(BUILDS))
 QUICKCHECKS = $(addsuffix .quickcheck,$(BUILDS))
 ANDROID_CHECKS = $(addsuffix .check,$(ANDROID_BUILDS))
 NACL_CHECKS = $(addsuffix .check,$(NACL_BUILDS))
 # File where previously used GYPFLAGS are stored.
 ENVFILE = $(OUTDIR)/environment
 
-.PHONY: all check clean builddeps dependencies $(ENVFILE).new native version \
+.PHONY: all check clean builddeps dependencies $(ENVFILE).new native \
         qc quickcheck $(QUICKCHECKS) turbocheck \
         $(addsuffix .quickcheck,$(MODES)) $(addsuffix .quickcheck,$(ARCHES)) \
         $(ARCHES) $(MODES) $(BUILDS) $(CHECKS) $(addsuffix .clean,$(ARCHES)) \
         $(addsuffix .check,$(MODES)) $(addsuffix .check,$(ARCHES)) \
         $(ANDROID_ARCHES) $(ANDROID_BUILDS) $(ANDROID_CHECKS) \
         must-set-ANDROID_NDK_ROOT_OR_TOOLCHAIN \
         $(NACL_ARCHES) $(NACL_BUILDS) $(NACL_CHECKS) \
         must-set-NACL_SDK_ROOT
 
 # Target definitions. "all" is the default.
 all: $(DEFAULT_MODES)
 
-# Target for generating the v8 version file from git tags.
-version:
-        build/generate_version.py
-
 # Special target for the buildbots to use. Depends on $(OUTDIR)/Makefile
 # having been created before.
-buildbot: version
+buildbot:
         $(MAKE) -C "$(OUTDIR)" BUILDTYPE=$(BUILDTYPE) \
                 builddir="$(abspath $(OUTDIR))/$(BUILDTYPE)"
 
 # Compile targets. MODES and ARCHES are convenience targets.
 .SECONDEXPANSION:
 $(MODES): $(addsuffix .$$@,$(DEFAULT_ARCHES))
 
 $(ARCHES): $(addprefix $$@.,$(DEFAULT_MODES))
 
 # Defines how to build a particular target (e.g. ia32.release).
-$(BUILDS): $(OUTDIR)/Makefile.$$@ version
+$(BUILDS): $(OUTDIR)/Makefile.$$@
         @$(MAKE) -C "$(OUTDIR)" -f Makefile.$@ \
                  BUILDTYPE=$(shell echo $(subst .,,$(suffix $@)) | \
                              python -c "print \
                              raw_input().replace('opt', '').capitalize()") \
                  builddir="$(shell pwd)/$(OUTDIR)/$@"
 
-native: $(OUTDIR)/Makefile.native version
+native: $(OUTDIR)/Makefile.native
         @$(MAKE) -C "$(OUTDIR)" -f Makefile.native \
                  BUILDTYPE=Release \
                  builddir="$(shell pwd)/$(OUTDIR)/$@"
 
 $(ANDROID_ARCHES): $(addprefix $$@.,$(MODES))
 
 $(ANDROID_BUILDS): $(GYPFILES) $(ENVFILE) build/android.gypi \
-                   must-set-ANDROID_NDK_ROOT_OR_TOOLCHAIN Makefile.android \
-                   version
+                   must-set-ANDROID_NDK_ROOT_OR_TOOLCHAIN Makefile.android
         @$(MAKE) -f Makefile.android $@ \
                 ARCH="$(basename $@)" \
                 MODE="$(subst .,,$(suffix $@))" \
                 OUTDIR="$(OUTDIR)" \
                 GYPFLAGS="$(GYPFLAGS)"
 
 $(NACL_ARCHES): $(addprefix $$@.,$(MODES))
 
 $(NACL_BUILDS): $(GYPFILES) $(ENVFILE) \
-                   Makefile.nacl must-set-NACL_SDK_ROOT version
+                   Makefile.nacl must-set-NACL_SDK_ROOT
         @$(MAKE) -f Makefile.nacl $@ \
                 ARCH="$(basename $@)" \
                 MODE="$(subst .,,$(suffix $@))" \
                 OUTDIR="$(OUTDIR)" \
                 GYPFLAGS="$(GYPFLAGS)"
 
 # Test targets.
 check: all
         @tools/run-tests.py $(TESTJOBS) --outdir=$(OUTDIR) \
             --arch=$(shell echo $(DEFAULT_ARCHES) | sed -e 's/ /,/g') \
@@ skipping 79 matching lines @@
         rm -rf $(OUTDIR)/$(basename $@).release
         rm -rf $(OUTDIR)/$(basename $@).debug
         rm -rf $(OUTDIR)/$(basename $@).optdebug
         find $(OUTDIR) -regex '.*\(host\|target\)\.$(basename $@).*\.mk' -delete
 
 native.clean:
         rm -f $(OUTDIR)/Makefile.native
         rm -rf $(OUTDIR)/native
         find $(OUTDIR) -regex '.*\(host\|target\)\.native\.mk' -delete
 
-version.clean:
-        rm -f src/version_gen.cc
-
-clean: $(addsuffix .clean, $(ARCHES) $(ANDROID_ARCHES) $(NACL_ARCHES)) native.clean gtags.clean version.clean
+clean: $(addsuffix .clean, $(ARCHES) $(ANDROID_ARCHES) $(NACL_ARCHES)) native.clean gtags.clean
 
 # GYP file generation targets.
 OUT_MAKEFILES = $(addprefix $(OUTDIR)/Makefile.,$(BUILDS))
 $(OUT_MAKEFILES): $(GYPFILES) $(ENVFILE)
         $(eval CXX_TARGET_ARCH:=$(shell $(CXX) -v 2>&1 | grep ^Target: | \
                 cut -f 2 -d " " | cut -f 1 -d "-" ))
         $(eval CXX_TARGET_ARCH:=$(subst aarch64,arm64,$(CXX_TARGET_ARCH)))
         $(eval CXX_TARGET_ARCH:=$(subst x86_64,x64,$(CXX_TARGET_ARCH)))
         $(eval V8_TARGET_ARCH:=$(subst .,,$(suffix $(basename $@))))
         PYTHONPATH="$(shell pwd)/tools/generate_shim_headers:$(shell pwd)/build:$(PYTHONPATH):$(shell pwd)/build/gyp/pylib:$(PYTHONPATH)" \
@@ skipping 59 matching lines @@
 # We need to manually set the stack limit here, to work around bugs in
 # gmake-3.81 and global-5.7.1 on recent 64-bit Linux systems.
 GPATH GRTAGS GSYMS GTAGS: gtags.files $(shell cat gtags.files 2> /dev/null)
         @bash -c 'ulimit -s 10240 && GTAGSFORCECPP=yes gtags -i -q -f $<'
 
 gtags.clean:
         rm -f gtags.files GPATH GRTAGS GSYMS GTAGS
 
 dependencies builddeps:
         $(error Use 'gclient sync' instead)