Fix _newlib_version.h logic to support building gcc with newlib.

newlib/Makefile.am

@@ -214,8 +214,7 @@ stmp-targ-include: config.status
 	-rm -rf targ-include stmp-targ-include
 	$(MAKE) targ-include/sys \
 		targ-include/machine \
-		targ-include/bits \
-		targ-include/newlib.h
+		targ-include/bits
 	-for i in $(srcdir)/libc/machine/$(machine_dir)/machine/*.h; do \
 	    if [ -f $$i ]; then \
 	      cp $$i targ-include/machine/`basename $$i`; \
@@ -271,6 +270,7 @@ stmp-targ-include: config.status
 	      cp $$i targ-include/machine/`basename $$i`; \
 	    else true; fi ; \
 	  done
+	$(MAKE) targ-include/newlib.h
 	touch $@
 
 CLEANFILES = stmp-targ-include

newlib/Makefile.in

@@ -973,8 +973,7 @@ stmp-targ-include: config.status
 	-rm -rf targ-include stmp-targ-include
 	$(MAKE) targ-include/sys \
 		targ-include/machine \
-		targ-include/bits \
-		targ-include/newlib.h
+		targ-include/bits
 	-for i in $(srcdir)/libc/machine/$(machine_dir)/machine/*.h; do \
 	    if [ -f $$i ]; then \
 	      cp $$i targ-include/machine/`basename $$i`; \
@@ -1030,6 +1029,7 @@ stmp-targ-include: config.status
 	      cp $$i targ-include/machine/`basename $$i`; \
 	    else true; fi ; \
 	  done
+	$(MAKE) targ-include/newlib.h
 	touch $@
 
 install-data-local:	install-toollibLIBRARIES

newlib/aclocal.m4

@@ -1009,4 +1009,9 @@ AC_SUBST([am__tar])
 AC_SUBST([am__untar])
 ]) # _AM_PROG_TAR
 
+m4_include([../libtool.m4])
+m4_include([../ltoptions.m4])
+m4_include([../ltsugar.m4])
+m4_include([../ltversion.m4])
+m4_include([../lt~obsolete.m4])
 m4_include([acinclude.m4])

newlib/libc/include/_newlib_version.h

@@ -0,0 +1,2 @@
+/* dummy file for external tools to use.  Real file is created by
+   newlib configuration. */