Fixes
elf/librtld.os: In function `process_envvars': : undefined reference to `__access'
...
when building glibc-2.3.x on cygwin

Idea from
http://sources.redhat.com/ml/bug-glibc/2002-01/msg00071/glibc-2.2-cygin-shared.patch
Basically, make glibc use .oST as suffix for 'object static'
instead of .oS, since cygwin has trouble distinguishing .os from .oS
(Original patch had .on, but .oST is more mnemonic for 'object static')

glibc-linuxthreads-2.3.5 also requires a patch, see 
../glibc-linuxthreads-2.3.5/glibc-linuxthreads-2.3.5-cygwin.patch

[ forward ported to glibc-2.3.5 by Petr Cvachoucek:

Message-ID: <4282FCBA.3040000@unicontrols.cz>
Date: Thu, 12 May 2005 08:50:34 +0200
From: Petr Cvachoucek <cvachoucek@unicontrols.cz>
To: Dan Kegel <dank@kegel.com>
CC:  crossgcc@sources.redhat.com
Subject: Patches to build gcc 3.4.3 / glibc 2.3.5 on cygwin

Hi Dan,
following patches are needed to build gcc-3.4.3/glibc-2.3.5 toolchain
on cygwin. Tested to build toolchains for powerpc 604 and 750 targets.

-- 
                     Petr Cvachoucek
                     Unicontrols a.s.
                     http://www.unicontrols.cz
]

diff -aur glibc-2.3.5/Makeconfig glibc-2.3.5-cygwin/Makeconfig
--- glibc-2.3.5/Makeconfig	2005-02-16 11:50:19.000000000 +0100
+++ glibc-2.3.5-cygwin/Makeconfig	2005-05-11 08:24:51.046875000 +0200
@@ -449,7 +449,7 @@
 # run the linked programs.
 link-libc = -Wl,-rpath-link=$(rpath-link) \
 	    $(common-objpfx)libc.so$(libc.so-version) \
-	    $(common-objpfx)$(patsubst %,$(libtype.oS),c) $(gnulib)
+	    $(common-objpfx)$(patsubst %,$(libtype.oST),c) $(gnulib)
 # This is how to find at build-time things that will be installed there.
 rpath-dirs = math elf dlfcn nss nis rt resolv crypt
 endif
@@ -656,7 +656,7 @@
 # The compilation rules use $(CPPFLAGS-${SUFFIX}) and $(CFLAGS-${SUFFIX})
 # to pass different flags for each flavor.
 libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o))
-all-object-suffixes := .o .os .op .og .ob .oS
+all-object-suffixes := .o .os .op .og .ob .oST
 object-suffixes :=
 CPPFLAGS-.o = $(pic-default)
 CFLAGS-.o = $(filter %frame-pointer,$(+cflags))
@@ -712,14 +712,14 @@
 
 ifeq (yes,$(build-shared))
 # Build special library that contains the static-only routines for libc.
-object-suffixes-for-libc += .oS
+object-suffixes-for-libc += .oST
 
 # Must build the routines as PIC, though, because they can end up in (users')
 # shared objects.  We don't want to use CFLAGS-os because users may, for
 # example, make that processor-specific.
-CFLAGS-.oS = $(CFLAGS-.o) $(PIC-ccflag)
-CPPFLAGS-.oS = $(CPPFLAGS-.o) -DPIC -DLIBC_NONSHARED=1
-libtype.oS = lib%_nonshared.a
+CFLAGS-.oST = $(CFLAGS-.o) $(PIC-ccflag)
+CPPFLAGS-.oST = $(CPPFLAGS-.o) -DPIC -DLIBC_NONSHARED=1
+libtype.oST = lib%_nonshared.a
 endif
 
 # The assembler can generate debug information too.
diff -aur glibc-2.3.5/Makerules glibc-2.3.5-cygwin/Makerules
--- glibc-2.3.5/Makerules	2004-12-15 19:52:39.000000000 +0100
+++ glibc-2.3.5-cygwin/Makerules	2005-05-11 08:25:33.578125000 +0200
@@ -416,7 +416,7 @@
 # Bounded pointer thunks are only built for *.ob
 elide-bp-thunks = $(addprefix $(bppfx),$(bp-thunks))
 
-elide-routines.oS += $(filter-out $(static-only-routines),\
+elide-routines.oST += $(filter-out $(static-only-routines),\
 				  $(routines) $(aux) $(sysdep_routines)) \
 		     $(elide-bp-thunks)
 elide-routines.os += $(static-only-routines) $(elide-bp-thunks)
@@ -961,7 +961,7 @@
 install: $(inst_libdir)/libc.so
 $(inst_libdir)/libc.so: $(common-objpfx)format.lds \
 			$(common-objpfx)libc.so$(libc.so-version) \
-			$(inst_libdir)/$(patsubst %,$(libtype.oS),\
+			$(inst_libdir)/$(patsubst %,$(libtype.oST),\
 						  $(libprefix)$(libc-name)) \
 			$(+force)
 	(echo '/* GNU ld script';\
@@ -969,7 +969,7 @@
 	 echo '   the static library, so try that secondarily.  */';\
 	 cat $<; \
 	 echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
-	      '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
+	      '$(libdir)/$(patsubst %,$(libtype.oST),$(libprefix)$(libc-name))'\
 	      ')' \
 	) > $@.new
 	mv -f $@.new $@
diff -aur glibc-2.3.5/extra-lib.mk glibc-2.3.5-cygwin/extra-lib.mk
--- glibc-2.3.5/extra-lib.mk	2004-12-02 23:54:47.000000000 +0100
+++ glibc-2.3.5-cygwin/extra-lib.mk	2005-05-11 08:27:28.156250000 +0200
@@ -13,7 +13,7 @@
 
 ifneq (,$($(lib)-static-only-routines))
 ifneq (,$(filter yesyes%,$(build-shared)$(elf)$($(lib).so-version)))
-object-suffixes-$(lib) += $(filter-out $($(lib)-inhibit-o),.oS)
+object-suffixes-$(lib) += $(filter-out $($(lib)-inhibit-o),.oST)
 endif
 endif
 
@@ -29,7 +29,7 @@
 
 # Add each flavor of library to the lists of things to build and install.
 install-lib += $(foreach o,$(object-suffixes-$(lib)),$(lib:lib%=$(libtype$o)))
-extra-objs += $(foreach o,$(filter-out .os .oS,$(object-suffixes-$(lib))),\
+extra-objs += $(foreach o,$(filter-out .os .oST,$(object-suffixes-$(lib))),\
 			$(patsubst %,%$o,$(filter-out \
 					   $($(lib)-shared-only-routines),\
 					   $(all-$(lib)-routines))))
@@ -57,7 +57,7 @@
 
 
 # Use o-iterator.mk to generate a rule for each flavor of library.
-ifneq (,$(filter-out .os .oS,$(object-suffixes-$(lib))))
+ifneq (,$(filter-out .os .oST,$(object-suffixes-$(lib))))
 define o-iterator-doit
 $(objpfx)$(patsubst %,$(libtype$o),$(lib:lib%=%)): \
   $(patsubst %,$(objpfx)%$o,\
@@ -65,7 +65,7 @@
 			  $(all-$(lib)-routines))); \
 	$$(build-extra-lib)
 endef
-object-suffixes-left = $(filter-out .os .oS,$(object-suffixes-$(lib)))
+object-suffixes-left = $(filter-out .os .oST,$(object-suffixes-$(lib)))
 include $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-left))
 endif
 
@@ -77,9 +77,9 @@
 	$(build-extra-lib)
 endif
 
-ifneq (,$(filter .oS,$(object-suffixes-$(lib))))
-$(objpfx)$(patsubst %,$(libtype.oS),$(lib:lib%=%)): \
-  $(patsubst %,$(objpfx)%.oS,\
+ifneq (,$(filter .oST,$(object-suffixes-$(lib))))
+$(objpfx)$(patsubst %,$(libtype.oST),$(lib:lib%=%)): \
+  $(patsubst %,$(objpfx)%.oST,\
 	     $(filter $($(lib)-static-only-routines),\
 		      $(all-$(lib)-routines)))
 	$(build-extra-lib)
diff -aur glibc-2.3.5/nptl/Makefile glibc-2.3.5-cygwin/nptl/Makefile
--- glibc-2.3.5/nptl/Makefile	2005-02-16 09:45:56.000000000 +0100
+++ glibc-2.3.5-cygwin/nptl/Makefile	2005-05-11 08:26:01.812500000 +0200
@@ -360,7 +360,7 @@
 
 $(inst_libdir)/libpthread.so: $(common-objpfx)format.lds \
 			      $(objpfx)libpthread.so$(libpthread.so-version) \
-			      $(inst_libdir)/$(patsubst %,$(libtype.oS),\
+			      $(inst_libdir)/$(patsubst %,$(libtype.oST),\
 							$(libprefix)pthread) \
 			      $(+force)
 	(echo '/* GNU ld script';\
@@ -368,7 +368,7 @@
 	 echo '   the static library, so try that secondarily.  */';\
 	 cat $<; \
 	 echo 'GROUP ( $(slibdir)/libpthread.so$(libpthread.so-version)' \
-	      '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)pthread)'\
+	      '$(libdir)/$(patsubst %,$(libtype.oST),$(libprefix)pthread)'\
 	      ')' \
 	) > $@.new
 	mv -f $@.new $@
diff -aur glibc-2.3.5/sysdeps/sparc/sparc32/sparcv9/Makefile glibc-2.3.5-cygwin/sysdeps/sparc/sparc32/sparcv9/Makefile
--- glibc-2.3.5/sysdeps/sparc/sparc32/sparcv9/Makefile	2004-08-16 08:46:14.000000000 +0200
+++ glibc-2.3.5-cygwin/sysdeps/sparc/sparc32/sparcv9/Makefile	2005-05-11 08:26:25.937500000 +0200
@@ -10,4 +10,4 @@
 ASFLAGS-.op += -Wa,-Av9a
 ASFLAGS-.og += -Wa,-Av9a
 ASFLAGS-.ob += -Wa,-Av9a
-ASFLAGS-.oS += -Wa,-Av9a
+ASFLAGS-.oST += -Wa,-Av9a