The GNU Libc Reference manual has to be removed for licensing reasons.
But some files have a dependency on manual/errno.texi; the easiest
solution is to drop those dependencies and make sure that MAKEINFO=:
so that no target depends on manual/*.texi files.

This patch patches only manual/Makefile as rest of changes is in tarball.
---
 Makefile |  254 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 254 insertions(+)

--- /dev/null
+++ b/manual/Makefile
@@ -0,0 +1,254 @@
+# Copyright (C) 1992-1999,2000,2001,2002,2003,2004,2006
+#	Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, write to the Free
+# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307 USA.
+
+# Makefile for the GNU C Library manual.
+
+subdir := manual
+export subdir := $(subdir)
+
+# Allow override
+INSTALL_INFO = install-info
+
+.PHONY: all dvi pdf info html
+all: dvi
+dvi: libc.dvi
+pdf: libc.pdf
+
+# Get glibc's configuration info.
+ifneq (,$(wildcard ../Makeconfig))
+include ../Makeconfig
+else
+MAKEINFO = makeinfo
+TEXI2DVI = texi2dvi
+AWK = gawk
+endif
+
+TEXI2PDF = texi2dvi --pdf
+
+ifneq ($(strip $(MAKEINFO)),:)
+all: info
+info: libc.info
+endif
+
+# scripts we use
+ifndef move-if-change
+move-if-change = ./move-if-change
+endif
+mkinstalldirs = $(..)scripts/mkinstalldirs
+
+chapters = $(addsuffix .texi, \
+		       intro errno memory ctype string charset locale	\
+		       message search pattern io stdio llio filesys	\
+		       pipe socket terminal syslog math arith time	\
+		       resource setjmp signal startup process job nss	\
+		       users sysinfo conf crypt debug)
+add-chapters = $(wildcard $(foreach d, $(add-ons), ../$d/$d.texi))
+appendices = lang.texi header.texi install.texi maint.texi contrib.texi \
+	     freemanuals.texi
+
+-include texis
+texis: texis.awk $(chapters) $(add-chapters) $(appendices) lesser.texi fdl.texi
+	$(AWK) -f $^ > $@.T
+	mv -f $@.T $@
+
+nonexamples = $(filter-out $(add-chapters) %.c.texi, $(texis))
+examples = $(filter-out $(foreach d, $(add-ons), ../$d/%.c.texi), \
+			$(filter %.c.texi, $(texis)))
+
+# Kludge: implicit rule so Make knows the one command does it all.
+chapters.% top-menu.%: libc-texinfo.sh $(texis) Makefile
+	AWK=$(AWK) $(SHELL) $< '$(chapters)' '$(add-chapters)' '$(appendices)'
+
+libc.dvi libc.pdf libc.info: chapters.texi top-menu.texi dir-add.texi \
+			     libm-err.texi
+libc.dvi libc.pdf: texinfo.tex
+
+html: libc/index.html
+libc/index.html: chapters.texi top-menu.texi dir-add.texi libm-err.texi
+	$(MAKEINFO) --html libc.texinfo
+
+# Generate the summary from the Texinfo source files for each chapter.
+summary.texi: stamp-summary ;
+stamp-summary: summary.awk $(filter-out summary.texi, $(texis))
+	$(AWK) -f $^ | sort -t'' -df -k 1,1 | tr '\014' '\012' > summary-tmp
+	$(move-if-change) summary-tmp summary.texi
+	touch $@
+
+# Generate a file which can be added to the `dir' content to provide direct
+# access to the documentation of the function, variables, and other
+# definitions.
+dir-add.texi: xtract-typefun.awk $(texis)
+	(echo "@dircategory GNU C library functions and macros";	\
+	 echo "@direntry";						\
+	 $(AWK) -f $^ | sort;						\
+	 echo "@end direntry") > $@.new
+	mv -f $@.new $@
+
+# The table with the math errors is generated.
+libm-err.texi: stamp-libm-err
+stamp-libm-err: libm-err-tab.pl $(wildcard $(foreach dir,$(sysdirs),\
+						     $(dir)/libm-test-ulps))
+	pwd=`pwd`; \
+	$(PERL) $< $$pwd/.. > libm-err-tmp
+	$(move-if-change) libm-err-tmp libm-err.texi
+	touch $@
+
+# Generate Texinfo files from the C source for the example programs.
+%.c.texi: examples/%.c
+	sed -e 's,[{}],@&,g'				\
+	    -e 's,/\*\(@.*\)\*/,\1,g'			\
+	    -e 's,/\*  *,/* @r{,g' -e 's,  *\*/,} */,'	\
+	    -e 's/\(@[a-z][a-z]*\)@{\([^}]*\)@}/\1{\2}/g'\
+	    $< | expand > $@.new
+	mv -f $@.new $@
+
+%.info: %.texinfo
+	LANGUAGE=C LC_ALL=C $(MAKEINFO) $<
+
+%.dvi: %.texinfo
+	$(TEXI2DVI) $<
+
+%.pdf: %.texinfo
+	$(TEXI2PDF) $<
+
+# Distribution.
+minimal-dist = summary.awk texis.awk tsort.awk libc-texinfo.sh libc.texinfo \
+	       libm-err.texi stamp-libm-err				    \
+	       $(filter-out summary.texi, $(nonexamples))		    \
+	       $(patsubst %.c.texi,examples/%.c, $(examples))
+
+doc-only-dist = Makefile COPYING.LIB
+distribute = $(minimal-dist) $(examples) stdio-fp.c	\
+	     libc.info* libc.?? libc.??s texinfo.tex	\
+	     xtract-typefun.awk dir-add.texi dir libm-err-tab.pl
+export distribute := $(distribute)
+
+tar-it = tar chovf $@ $^
+
+manual.tar: $(doc-only-dist) $(minimal-dist) ; $(tar-it)
+mandist.tar: $(doc-only-dist) $(distribute) ; $(tar-it)
+
+edition := $(shell sed -n 's/^@set EDITION \([0-9][0-9.]*\)[^0-9.]*.*$$/\1/p' \
+		       libc.texinfo)
+
+glibc-doc-$(edition).tar: $(doc-only-dist) $(distribute)
+	@rm -f glibc-doc-$(edition)
+	ln -s . glibc-doc-$(edition)
+	tar chovf $@ $(addprefix glibc-doc-$(edition)/,$^)
+	rm -f glibc-doc-$(edition)
+
+%.Z: %
+	compress -c $< > $@.new
+	mv -f $@.new $@
+%.gz: %
+	gzip -9 -c $< > $@.new
+	mv -f $@.new $@
+%.uu: %
+	uuencode $< < $< > $@.new
+	mv -f $@.new $@
+
+.PHONY: mostlyclean distclean realclean clean
+mostlyclean:
+	-rm -f libc.dvi libc.pdf libc.tmp libc.info*
+	-rm -f $(objpfx)stubs
+	-rm -f $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
+clean: mostlyclean
+distclean: clean
+indices = cp fn pg tp vr ky
+realclean: distclean
+	-rm -f texis summary.texi stamp-summary *.c.texi dir-add.texi
+	-rm -f $(foreach index,$(indices),libc.$(index) libc.$(index)s)
+	-rm -f libc.log libc.aux libc.toc dir-add.texinfo
+	-rm -f top-menu.texi chapters.texi
+
+.PHONY: install subdir_install installdirs install-data
+install-data subdir_install: install
+ifneq ($(strip $(MAKEINFO)),:)
+install: $(inst_infodir)/libc.info
+	@if $(SHELL) -c '$(INSTALL_INFO) --version' >/dev/null 2>&1; then \
+	 test -f $(inst_infodir)/dir || $(INSTALL_DATA) dir $(inst_infodir);\
+	 $(INSTALL_INFO) --info-dir=$(inst_infodir) $(inst_infodir)/libc.info;\
+	else : ; fi
+endif
+# Catchall implicit rule for other installation targets from the parent.
+install-%: ;
+
+$(inst_infodir)/libc.info: libc.info installdirs
+	for file in $<*; do \
+	  $(INSTALL_DATA) $$file $(@D)/$$file; \
+	done
+
+installdirs:
+	$(mkinstalldirs) $(inst_infodir)
+
+.PHONY: dist
+dist: # glibc-doc-$(edition).tar.gz
+
+ifneq (,$(wildcard ../Make-dist))
+dist: ../Make-dist
+	$(MAKE) -f $< $(Make-dist-args)
+endif
+
+ifndef ETAGS
+ETAGS = etags -T
+endif
+TAGS: $(minimal-dist)
+	$(ETAGS) -o $@ $^
+
+# The parent makefile sometimes invokes us with targets `subdir_REAL-TARGET'.
+subdir_%: % ;
+# For targets we don't define, do nothing.
+subdir_%: ;
+
+# These are targets that each glibc subdirectory is expected to understand.
+# ../Rules defines them for code subdirectories; for us, they are no-ops.
+# None of these should be `subdir_TARGET'; those targets are transformed
+# by the implicit rule above into `TARGET' deps.
+glibc-targets	:= lib objects objs others tests xtests lint.out echo-headers
+.PHONY: $(glibc-targets)
+$(glibc-targets):
+
+# Create stamp files if they don't exist, so the parent makefile's rules for
+# updating the library archives are happy with us, and never think we have
+# changed the library.
+lib: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
+ifdef objpfx
+.PHONY: stubs
+stubs: $(objpfx)stubs
+endif
+$(objpfx)stubs ../po/manual.pot $(objpfx)stamp%:
+	$(make-target-directory)
+	touch $@
+
+# Make the target directory if it doesn't exist, using the `mkinstalldirs'
+# script that does `mkdir -p' even if `mkdir' doesn't support that flag.
+define make-target-directory
+$(addprefix $(mkinstalldirs) ,\
+	    $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
+endef
+
+# The top-level glibc Makefile expects subdir_install to update the stubs file.
+subdir_install: stubs
+
+# Get rid of these variables if they came from the parent.
+routines =
+aux =
+sources =
+objects =
+headers =
