* Makefile (subdirs): Replace stdio with stdio-common and $(stdio).

	* configure.in: Grok arg --enable-libio.
	($stdio = libio): Define USE_IN_LIBIO.
	* config.h.in (USE_IN_LIBIO): Add #undef.
	* config.make.in (stdio): New variable, set by configure.
	* Makeconfig (stdio): New variable.
	* stdio.h [USE_IN_LIBIO]: Include libio/stdio.h instead of
	stdio/stdio.h.
	* stdio-common/Makefile: New file.
	* stdio/Makefile: Half the contents moved to stdio-common/Makefile.
	* stdio/_itoa.c: Moved to stdio-common.
	* stdio/_itoa.h: Moved to stdio-common.
	* stdio/asprintf.c: Moved to stdio-common.
	* stdio/bug1.c: Moved to stdio-common.
	* stdio/bug1.input: Moved to stdio-common.
	* stdio/bug2.c: Moved to stdio-common.
	* stdio/bug3.c: Moved to stdio-common.
	* stdio/bug4.c: Moved to stdio-common.
	* stdio/bug5.c: Moved to stdio-common.
	* stdio/bug6.c: Moved to stdio-common.
	* stdio/bug6.input: Moved to stdio-common.
	* stdio/bug7.c: Moved to stdio-common.
	* stdio/dprintf.c: Moved to stdio-common.
	* stdio/errnobug.c: Moved to stdio-common.
	* stdio/getline.c: Moved to stdio-common.
	* stdio/getw.c: Moved to stdio-common.
	* stdio/perror.c: Moved to stdio-common.
	* stdio/printf-parse.h: Moved to stdio-common.
	* stdio/printf-prs.c: Moved to stdio-common.
	* stdio/printf.c: Moved to stdio-common.
	* stdio/printf.h: Moved to stdio-common.
	* stdio/printf_fp.c: Moved to stdio-common.
	* stdio/psignal.c: Moved to stdio-common.
	* stdio/putw.c: Moved to stdio-common.
	* stdio/reg-printf.c: Moved to stdio-common.
	* stdio/scanf.c: Moved to stdio-common.
	* stdio/snprintf.c: Moved to stdio-common.
	* stdio/sprintf.c: Moved to stdio-common.
	* stdio/sscanf.c: Moved to stdio-common.
	* stdio/tempnam.c: Moved to stdio-common.
	* stdio/temptest.c: Moved to stdio-common.
	* stdio/test-fseek.c: Moved to stdio-common.
	* stdio/test-fwrite.c: Moved to stdio-common.
	* stdio/test-popen.c: Moved to stdio-common.
	* stdio/test_rdwr.c: Moved to stdio-common.
	* stdio/tmpfile.c: Moved to stdio-common.
	* stdio/tmpnam.c: Moved to stdio-common.
	* stdio/tst-fileno.c: Moved to stdio-common.
	* stdio/tst-printf.c: Moved to stdio-common.
	* stdio/tstgetln.c: Moved to stdio-common.
	* stdio/tstgetln.input: Moved to stdio-common.
	* stdio/tstscanf.c: Moved to stdio-common.
	* stdio/tstscanf.input: Moved to stdio-common.
	* stdio/vfprintf.c: Moved to stdio-common.
	* stdio/vfscanf.c: Moved to stdio-common.
	* stdio/vprintf.c: Moved to stdio-common.
	* stdio/xbug.c: Moved to stdio-common.
	* sysdeps/generic/Makefile (siglist.c rules): Do this in subdir
	stdio-common instead of stdio.
	* sysdeps/unix/Makefile (errlist.c rules): Likewise.
	* stdio-common/asprintf.c [USE_IN_LIBIO]: Call libio primitive
	function.
	* stdio-common/dprintf.c: Likewise.
	* stdio-common/printf.c: Likewise.
	* stdio-common/scanf.c: Likewise.
	* stdio-common/snprintf.c: Likewise.
	* stdio-common/sprintf.c: Likewise.
	* stdio-common/sscanf.c: Likewise.
	* stdio-common/vprintf.c: Likewise.

	* Makerules: Include $(+depfiles) directly instead of generating
	depend-$(subdir).
	(depend-$(subdir)): Target removed.
	(common-clean): Don't remove depend-$(subdir).

1 files changed, 3 insertions, 13 deletions

diff --git a/Makerules b/Makerules
index 56f8cc89e6..ac1ac39b48 100644
--- a/Makerules
+++ b/Makerules
@@ -301,19 +301,10 @@ endif
 			 $(filter-out $(addsuffix .d,$(omit-deps)),\
 				      $(+depfiles)))
 
-$(objpfx)depend-$(subdir): Makefile
 ifdef +depfiles
-	for file in $(+depfiles:$(objpfx)%=%); do \
-	  echo "include \$$(objpfx)$$file";	\
-	done > $@-tmp
-	mv -f $@-tmp $@
-else
-	cp /dev/null $@
-endif
-
 ifneq ($(no_deps),t)
-# Include the generated dependencies of the sources in this directory.
-include $(objpfx)depend-$(subdir)
+include $(+depfiles)
+endif
 endif
 
 # Maximize efficiency by minimizing the number of rules.
@@ -623,8 +614,7 @@ endef
 
 # Also remove the dependencies and generated source files.
 common-clean: common-mostlyclean
-	-rm -f $(objpfx)depend-$(subdir) $(+depfiles)
-	-rm -f $(addprefix $(objpfx),$(generated))
+	-rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles)
 
 # Produce a file `stub-$(subdir)' which contains `#define __stub_FUNCTION'
 # for each function which is a stub.  We grovel over all the .d files