* Makefile.in (bootstrap): New target.

From-SVN: r15399

ChangeLog

+Wed Sep 10 21:29:54 1997  Jeffrey A Law  (law@cygnus.com)
+
+	* Makefile.in (bootstrap): New target.
+
 Wed Sep 10 15:19:22 1997  Jeffrey A Law  (law@cygnus.com)
 
 	* config.sub: Accept 'amigados' for backward compatability.

Makefile.in

@@ -1284,6 +1284,31 @@ all-bootstrap:
 	  true; \
 	fi
 
+# Building GCC uses some tools for rebuilding "source" files
+# like texinfo, bison/byacc, etc.  So we must depend on those.
+#
+# While building GCC, it may be necessary to run various target
+# programs like the assembler, linker, etc.  So we depend on
+# those too.
+#
+# In theory, on an SMP all those dependencies can be resolved
+# in parallel.
+#
+.PHONY: bootstrap
+bootstrap: all-texinfo all-bison all-byacc all-binutils all-gas all-ld
+	@r=`pwd`; export r; \
+	s=`cd $(srcdir); pwd`; export s; \
+	$(SET_LIB_PATH) \
+	echo "Bootstrapping the compiler with -O2 -g"; \
+	cd gcc; $(MAKE) $(GCC_FLAGS_TO_PASS) BOOT_CFLAGS="-O2 -g" bootstrap
+	@r=`pwd`; export r; \
+	s=`cd $(srcdir); pwd`; export s; \
+	$(SET_LIB_PATH) \
+	echo "Comparing stage2 and stage3 of the compiler"; \
+	cd gcc; $(MAKE) $(GCC_FLAGS_TO_PASS) BOOT_CFLAGS="-O2 -g" compare
+	@echo "Building runtime libraries"; \
+	$(MAKE) all
+
 .PHONY: check-gcc
 check-gcc:
 	@if [ -f ./gcc/Makefile ] ; then \