Rename bin/ruby as exe/ruby

* common.mk, configure.in: rename the bin directory to run build
  executable as exe, to get rid of overwriting true files at the
  installation.  [ruby-dev:50250] [Bug #13911]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59937 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Makefile.in

@@ -414,7 +414,7 @@ clean-local::
 	$(Q)$(RM) ext/extinit.c ext/extinit.$(OBJEXT) ext/ripper/y.output \
 		enc/encinit.c enc/encinit.$(OBJEXT)
 	-$(Q)$(RM) $(pkgconfig_DATA)
-	-$(Q)$(RMALL) bin/$(PROGRAM) ruby-runner.h *.dSYM
+	-$(Q)$(RMALL) exe/ ruby-runner.h *.dSYM
 
 distclean-local::
 	$(Q)$(RM) ext/config.cache $(RBCONFIG) Doxyfile

common.mk

@@ -777,12 +777,12 @@ $(PLATFORM_D):
 	$(Q) $(MAKEDIRS) $(PLATFORM_DIR) $(@D)
 	@exit > $@
 
-bin/$(PROGRAM): ruby-runner.c ruby-runner.h $(TIMESTAMPDIR)/.bin.time
+exe/$(PROGRAM): ruby-runner.c ruby-runner.h exe/.time
 	$(Q) $(PURIFY) $(CC) $(CFLAGS) $(CPPFLAGS) -DRUBY_INSTALL_NAME=$(@F) $(LDFLAGS) $(LIBS) $(OUTFLAG)$@ $<
 
-$(TIMESTAMPDIR)/.bin.time:
-	$(Q) $(MAKEDIRS) bin $(@D)
-	$(Q) exit > $@
+exe/.time:
+	$(Q) $(MAKEDIRS) exe $(@D)
+	@exit > $@
 
 $(BUILTIN_ENCOBJS) $(BUILTIN_TRANSOBJS): $(ENC_TRANS_D)
 

configure.in

@@ -4028,7 +4028,7 @@ AS_CASE("$cross_compiling:${LIBPATHENV}", [yes:* | no:], [], [
     AC_MSG_CHECKING(whether wrapper for $LIBPATHENV is needed)
     AS_IF([env ${LIBPATHENV}=/lib /bin/sh -c ': ${'${LIBPATHENV}'?}' 2>/dev/null],
 	[AC_MSG_RESULT(no)],
-	[PREP="$PREP"' bin/$(PROGRAM)'
+	[PREP="$PREP"' exe/$(PROGRAM)'
 	AC_MSG_RESULT(yes)]
     )
 ])

tool/runruby.rb

@@ -74,7 +74,7 @@ env = {
   'RUBY_FIBER_MACHINE_STACK_SIZE' => '1',
 }
 
-runner = File.join(abs_archdir, "bin/ruby#{config['EXEEXT']}")
+runner = File.join(abs_archdir, "exe/ruby#{config['EXEEXT']}")
 runner = nil unless File.exist?(runner)
 abs_ruby = runner || File.expand_path(ruby)
 env["RUBY"] = abs_ruby