toolchain: The glorious return of glibc, ver 2.21

It's the eglibc packaging with a bit of spit-polishing. And testing. :-)

[blogic: merged glibc and eglibc into 1 and made eglibc a glibc variant]

Signed-off-by: Jeff Waugh <jdub@bethesignal.org>
Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 44701

19 files changed, 1586 insertions, 0 deletions

diff --git a/toolchain/glibc/Config.in b/toolchain/glibc/Config.in
new file mode 100644
index 0000000..72d306e
--- /dev/null
+++ b/toolchain/glibc/Config.in
@@ -0,0 +1,26 @@
+choice
+	prompt "(e)glibc version"
+	depends on TOOLCHAINOPTS && USE_GLIBC
+	default EGLIBC_USE_VERSION_2_19
+	help
+	  Select the version of glibc you wish to use.
+
+	config EGLIBC_USE_VERSION_2_15
+		bool "eglibc 2.15"
+		select EGLIBC_VERSION_2_15
+		depends on BROKEN
+
+	config EGLIBC_USE_VERSION_2_19
+		bool "eglibc 2.19"
+		select EGLIBC_VERSION_2_19
+
+	config GLIBC_USE_VERSION_2_21
+		bool "glibc 2.21"
+		select GLIBC_VERSION_2_21
+
+endchoice
+
+menu "eglibc configuration"
+	depends on TOOLCHAINOPTS && USE_GLIBC && (EGLIBC_USE_VERSION_2_15 || EGLIBC_USE_VERSION_2_19)
+	source toolchain/glibc/config/Config.in
+endmenu
diff --git a/toolchain/glibc/Config.version b/toolchain/glibc/Config.version
new file mode 100644
index 0000000..b4b2fcb
--- /dev/null
+++ b/toolchain/glibc/Config.version
@@ -0,0 +1,27 @@
+if USE_GLIBC
+
+config GLIBC_VERSION
+	string
+	default "2.15" if EGLIBC_VERSION_2_15
+	default "2.19" if EGLIBC_VERSION_2_19
+	default "2.21" if GLIBC_VERSION_2_21
+
+config EGLIBC_VERSION_2_15
+	bool
+
+config EGLIBC_VERSION_2_19
+	default y if !TOOLCHAINOPTS
+	bool
+
+config GLIBC_VERSION_2_21
+	default y if !TOOLCHAINOPTS
+	bool
+
+config GLIBC_REVISION
+	string
+	default "18909" if EGLIBC_VERSION_2_15
+	default "25243" if EGLIBC_VERSION_2_19
+	default "4e42b5b8f8" if GLIBC_VERSION_2_21
+	default ""
+
+endif
diff --git a/toolchain/glibc/Makefile b/toolchain/glibc/Makefile
new file mode 100644
index 0000000..f880db8
--- /dev/null
+++ b/toolchain/glibc/Makefile
@@ -0,0 +1,31 @@
+PATH_PREFIX := .
+VARIANT:=final
+HOST_BUILD_PARALLEL:=0
+
+include ./common.mk
+
+define Host/Compile
+	$(MAKE) -C $(CUR_BUILD_DIR) \
+		PARALLELMFLAGS="$(HOST_JOBS)" \
+		BUILD_CFLAGS="$(HOST_CFLAGS)" \
+		all
+endef
+
+define Host/Install
+	$(call Host/SetToolchainInfo)
+	$(MAKE) -C $(CUR_BUILD_DIR) \
+		BUILD_CFLAGS="$(HOST_CFLAGS)" \
+		install_root="$(TOOLCHAIN_DIR)" \
+		install
+	( cd $(TOOLCHAIN_DIR) ; \
+		for d in lib usr/lib ; do \
+		  for f in libc.so libpthread.so libgcc_s.so ; do \
+		    if [ -f $$$$d/$$$$f -a ! -L $$$$d/$$$$f ] ; then \
+		      $(SED) 's,/usr/lib/,,g;s,/lib/,,g' $$$$d/$$$$f ; \
+		    fi \
+		  done \
+		done \
+	)
+endef
+
+$(eval $(call HostBuild))
diff --git a/toolchain/glibc/common.mk b/toolchain/glibc/common.mk
new file mode 100644
index 0000000..e985de6
--- /dev/null
+++ b/toolchain/glibc/common.mk
@@ -0,0 +1,118 @@
+#
+# Copyright (C) 2006-2011 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=glibc
+PKG_VERSION:=$(call qstrip,$(CONFIG_GLIBC_VERSION))
+PKG_REVISION:=$(call qstrip,$(CONFIG_GLIBC_REVISION))
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=git://sourceware.org/git/glibc.git
+PKG_SOURCE_VERSION:=$(PKG_REVISION)
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)-r$(PKG_REVISION)
+PKG_SOURCE:=$(PKG_SOURCE_SUBDIR).tar.bz2
+
+GLIBC_PATH:=
+ifneq ($(CONFIG_EGLIBC_VERSION_2_15),)
+  GLIBC_PATH:=libc/
+  PKG_SOURCE_PROTO:=svn
+  PKG_SOURCE:=$(PKG_SOURCE_SUBDIR).tar.bz2
+  PKG_SOURCE_URL:=svn://svn.eglibc.org/branches/eglibc-2_15
+endif
+ifneq ($(CONFIG_EGLIBC_VERSION_2_19),)
+  GLIBC_PATH:=libc/
+  PKG_SOURCE_PROTO:=svn
+  PKG_SOURCE:=$(PKG_SOURCE_SUBDIR).tar.bz2
+  PKG_SOURCE_URL:=svn://svn.eglibc.org/branches/eglibc-2_19
+endif
+
+PATCH_DIR:=$(PATH_PREFIX)/patches/$(PKG_VERSION)
+
+HOST_BUILD_DIR:=$(BUILD_DIR_TOOLCHAIN)/$(PKG_SOURCE_SUBDIR)
+CUR_BUILD_DIR:=$(HOST_BUILD_DIR)-$(VARIANT)
+
+include $(INCLUDE_DIR)/toolchain-build.mk
+
+HOST_STAMP_PREPARED:=$(HOST_BUILD_DIR)/.prepared
+HOST_STAMP_CONFIGURED:=$(CUR_BUILD_DIR)/.configured
+HOST_STAMP_BUILT:=$(CUR_BUILD_DIR)/.built
+HOST_STAMP_INSTALLED:=$(TOOLCHAIN_DIR)/stamp/.glibc_$(VARIANT)_installed
+
+ifeq ($(ARCH),mips64)
+  ifdef CONFIG_MIPS64_ABI_N64
+    TARGET_CFLAGS += -mabi=64
+  endif
+  ifdef CONFIG_MIPS64_ABI_N32
+    TARGET_CFLAGS += -mabi=n32
+  endif
+  ifdef CONFIG_MIPS64_ABI_O32
+    TARGET_CFLAGS += -mabi=32
+  endif
+endif
+
+GLIBC_CONFIGURE:= \
+	BUILD_CC="$(HOSTCC)" \
+	$(TARGET_CONFIGURE_OPTS) \
+	CFLAGS="$(TARGET_CFLAGS)" \
+	libc_cv_slibdir="/lib" \
+	use_ldconfig=no \
+	$(HOST_BUILD_DIR)/$(GLIBC_PATH)configure \
+		--prefix= \
+		--build=$(GNU_HOST_NAME) \
+		--host=$(REAL_GNU_TARGET_NAME) \
+		--with-headers=$(TOOLCHAIN_DIR)/include \
+		--disable-profile \
+		--disable-werror \
+		--without-gd \
+		--without-cvs \
+		--enable-add-ons \
+		--$(if $(CONFIG_SOFT_FLOAT),without,with)-fp
+
+export libc_cv_ssp=no
+export ac_cv_header_cpuid_h=yes
+export HOST_CFLAGS := $(HOST_CFLAGS) -idirafter $(CURDIR)/$(PATH_PREFIX)/include
+
+define Host/SetToolchainInfo
+	$(SED) 's,^\(LIBC_TYPE\)=.*,\1=$(PKG_NAME),' $(TOOLCHAIN_DIR)/info.mk
+ifneq ($(CONFIG_GLIBC_VERSION_2_21),)
+	$(SED) 's,^\(LIBC_URL\)=.*,\1=http://www.gnu.org/software/libc/,' $(TOOLCHAIN_DIR)/info.mk
+else
+	$(SED) 's,^\(LIBC_URL\)=.*,\1=http://www.eglibc.org/,' $(TOOLCHAIN_DIR)/info.mk
+endif
+	$(SED) 's,^\(LIBC_VERSION\)=.*,\1=$(PKG_VERSION),' $(TOOLCHAIN_DIR)/info.mk
+	$(SED) 's,^\(LIBC_SO_VERSION\)=.*,\1=$(PKG_VERSION),' $(TOOLCHAIN_DIR)/info.mk
+endef
+
+define Host/Configure
+	[ -f $(HOST_BUILD_DIR)/.autoconf ] || { \
+		cd $(HOST_BUILD_DIR)/$(GLIBC_PATH); \
+		autoconf --force && \
+		touch $(HOST_BUILD_DIR)/.autoconf; \
+	}
+	mkdir -p $(CUR_BUILD_DIR)
+	grep 'CONFIG_EGLIBC_OPTION_' $(TOPDIR)/.config | sed -e "s,\\(# \)\\?CONFIG_EGLIBC_\\(.*\\),\\1\\2,g" > $(CUR_BUILD_DIR)/option-groups.config
+	( cd $(CUR_BUILD_DIR); rm -f config.cache; \
+		$(GLIBC_CONFIGURE) \
+	);
+endef
+
+define Host/Prepare
+	$(call Host/Prepare/Default)
+	ln -snf $(PKG_SOURCE_SUBDIR) $(BUILD_DIR_TOOLCHAIN)/$(PKG_NAME)
+ifeq ($(CONFIG_GLIBC_VERSION_2_21),)
+	$(SED) 's,y,n,' $(HOST_BUILD_DIR)/libc/option-groups.defaults
+ifneq ($(CONFIG_EGLIBC_VERSION_2_15),)
+	ln -sf ../ports $(HOST_BUILD_DIR)/libc/
+endif
+endif
+endef
+
+define Host/Clean
+	rm -rf $(CUR_BUILD_DIR)* \
+		$(BUILD_DIR_TOOLCHAIN)/$(LIBC)-dev \
+		$(BUILD_DIR_TOOLCHAIN)/$(PKG_NAME)
+endef
diff --git a/toolchain/glibc/config/Config.in b/toolchain/glibc/config/Config.in
new file mode 100644
index 0000000..6f02223
--- /dev/null
+++ b/toolchain/glibc/config/Config.in
@@ -0,0 +1,903 @@
+config EGLIBC_OPTION_EGLIBC_ADVANCED_INET6
+	bool "IPv6 Advanced Sockets API support (RFC3542)"
+	default y
+	select EGLIBC_OPTION_EGLIBC_INET
+	help
+	  This option group includes the functions specified by RFC 3542,
+	  "Advanced Sockets Application Program Interface (API) for
+	  IPv6".
+
+	  This option group includes the following functions:
+
+		inet6_opt_append
+		inet6_opt_find
+		inet6_opt_finish
+		inet6_opt_get_val
+		inet6_opt_init
+		inet6_option_alloc
+		inet6_option_append
+		inet6_option_find
+		inet6_option_init
+		inet6_option_next
+		inet6_option_space
+		inet6_opt_next
+		inet6_opt_set_val
+		inet6_rth_add
+		inet6_rth_getaddr
+		inet6_rth_init
+		inet6_rth_reverse
+		inet6_rth_segments
+		inet6_rth_space
+
+
+config EGLIBC_OPTION_EGLIBC_BACKTRACE
+	bool "Functions for producing backtraces"
+	default y
+	help
+	  This option group includes functions for producing a list of
+	  the function calls that are currently active in a thread, from
+	  within the thread itself.  These functions are often used
+	  within signal handlers, to produce diagnostic output.
+
+	  This option group includes the following functions:
+
+		backtrace
+		backtrace_symbols
+		backtrace_symbols_fd
+
+
+config EGLIBC_OPTION_EGLIBC_BIG_MACROS
+	bool "Use extensive inline code"
+	default y
+	help
+	  This option group specifies whether certain pieces of code
+	  should be inlined to achieve maximum speed.  If this option
+	  group is not selected, function calls will be used instead,
+	  hence reducing the library footprint.
+
+
+config EGLIBC_OPTION_EGLIBC_BSD
+	bool "BSD-specific functions, and their compatibility stubs"
+	default y
+	help
+	  This option group includes functions specific to BSD kernels.
+	  A number of these functions have stub versions that are also
+	  included in libraries built for non-BSD systems for
+	  compatibility.
+
+	  This option group includes the following functions:
+
+		chflags
+		fchflags
+		lchmod
+		revoke
+		setlogin
+
+
+config EGLIBC_OPTION_EGLIBC_CXX_TESTS
+	bool "Tests that link against the standard C++ library."
+	default y
+	select EGLIBC_OPTION_POSIX_WIDE_CHAR_DEVICE_IO
+	select EGLIBC_OPTION_EGLIBC_LIBM
+	help
+	  This option group does not include any C library functions;
+	  instead, it controls which EGLIBC tests an ordinary 'make
+	  tests' runs.  With this group disabled, tests that would
+	  normally link against the standard C++ library are not
+	  run.
+
+	  The standard C++ library depends on the math library 'libm' and
+	  the wide character I/O functions included in EGLIBC.  If those
+	  option groups are disabled, this test must also be disabled.
+
+
+config EGLIBC_OPTION_EGLIBC_CATGETS
+	bool "Functions for accessing message catalogs"
+	default y
+	select EGLIBC_OPTION_EGLIBC_LOCALE_CODE
+	help
+	  This option group includes functions for accessing message
+	  catalogs: catopen, catclose, and catgets.
+
+	  This option group depends on the EGLIBC_OPTION_EGLIBC_LOCALE_CODE
+	  option group; if you disable that, you must also disable this.
+
+
+config EGLIBC_OPTION_EGLIBC_CHARSETS
+	bool "iconv/gconv character set conversion libraries"
+	default y
+	help
+
+	  This option group includes support for character sets other
+	  than ASCII (ANSI_X3.4-1968) and Unicode and ISO-10646 in their
+	  various encodings.  This affects both the character sets
+	  supported by the wide and multibyte character functions, and
+	  those supported by the 'iconv' functions.
+
+	  With this option group disabled, EGLIBC supports only the
+	  following character sets:
+
+		ANSI_X3.4         - ASCII
+		ANSI_X3.4-1968
+		ANSI_X3.4-1986
+		ASCII
+		CP367
+		CSASCII
+		IBM367
+		ISO-IR-6
+		ISO646-US
+		ISO_646.IRV:1991
+		OSF00010020
+		US
+		US-ASCII
+
+		10646-1:1993      - ISO 10646, in big-endian UCS4 form
+		10646-1:1993/UCS4
+		CSUCS4
+		ISO-10646
+		ISO-10646/UCS4
+		OSF00010104
+		OSF00010105
+		OSF00010106
+		UCS-4
+		UCS-4BE
+		UCS4
+
+		UCS-4LE           - ISO 10646, in little-endian UCS4 form
+
+		ISO-10646/UTF-8   - ISO 10646, in UTF-8 form
+		ISO-10646/UTF8
+		ISO-IR-193
+		OSF05010001
+		UTF-8
+		UTF8
+
+		ISO-10646/UCS2    - ISO 10646, in target-endian UCS2 form
+		OSF00010100
+		OSF00010101
+		OSF00010102
+		UCS-2
+		UCS2
+
+		UCS-2BE           - ISO 10646, in big-endian UCS2 form
+		UNICODEBIG
+
+		UCS-2LE           - ISO 10646, in little-endian UCS2 form
+		UNICODELITTLE
+
+		WCHAR_T           - EGLIBC's internal form (target-endian,
+							32-bit ISO 10646)
+
+
+config EGLIBC_OPTION_EGLIBC_CRYPT
+	bool "Encryption library"
+	default y
+	help
+	  This option group includes the `libcrypt' library which
+	  provides functions for one-way encryption.  Supported
+	  encryption algorithms include MD5, SHA-256, SHA-512 and DES.
+
+
+config EGLIBC_OPTION_EGLIBC_CRYPT_UFC
+	bool "Ultra fast `crypt' implementation"
+	default y
+	select EGLIBC_OPTION_EGLIBC_CRYPT
+	help
+	  This option group provides ultra fast DES-based implementation of
+	  the `crypt' function.  When this option group is disabled,
+	  (a) the library will not provide the setkey[_r] and encrypt[_r]
+	  functions and (b) the crypt[_r] function will return NULL and set the
+	  errno to ENOSYS if /salt/ passed does not correspond to either MD5,
+	  SHA-256 or SHA-512 algorithm.
+
+
+config EGLIBC_OPTION_EGLIBC_DB_ALIASES
+	bool "Functions for accessing the mail aliases database"
+	default y
+	help
+	  This option group includes functions for looking up mail
+	  aliases in '/etc/aliases' or using nsswitch.  It includes the
+	  following functions:
+
+		endaliasent
+		getaliasbyname
+		getaliasbyname_r
+		getaliasent
+		getaliasent_r
+		setaliasent
+
+	  When this option group is disabled, the NSS service libraries
+	  also lack support for querying their mail alias tables.
+
+
+config EGLIBC_OPTION_EGLIBC_ENVZ
+	bool "Functions for handling envz-style environment vectors."
+	default y
+	help
+	  This option group contains functions for creating and operating
+	  on envz vectors.  An "envz vector" is a vector of strings in a
+	  contiguous block of memory, where each element is a name-value
+	  pair, and elements are separated from their neighbors by null
+	  characters.
+
+	  This option group includes the following functions:
+
+		envz_add        envz_merge 
+		envz_entry      envz_remove
+		envz_get        envz_strip 
+
+
+config EGLIBC_OPTION_EGLIBC_FCVT
+	bool "Functions for converting floating-point numbers to strings"
+	default y
+	help
+	  This option group includes functions for converting
+	  floating-point numbers to strings.
+
+	  This option group includes the following functions:
+
+		ecvt           qecvt
+		ecvt_r         qecvt_r
+		fcvt           qfcvt
+		fcvt_r         qfcvt_r
+		gcvt           qgcvt
+
+
+config EGLIBC_OPTION_EGLIBC_FMTMSG
+	bool "Functions for formatting messages"
+	default y
+	help
+	  This option group includes the following functions:
+
+		addseverity    fmtmsg
+
+
+config EGLIBC_OPTION_EGLIBC_FSTAB
+	bool "Access functions for 'fstab'"
+	default y
+	help
+	  This option group includes functions for reading the mount
+	  point specification table, '/etc/fstab'.  These functions are
+	  not included in the POSIX standard, which provides the
+	  'getmntent' family of functions instead.
+
+	  This option group includes the following functions:
+
+		endfsent       getfsspec
+		getfsent       setfsent
+		getfsfile
+
+
+config EGLIBC_OPTION_EGLIBC_FTRAVERSE
+	bool "Functions for traversing file hierarchies"
+	default y
+	help
+	  This option group includes functions for traversing file
+	  UNIX file hierachies.
+
+	  This option group includes the following functions:
+
+		fts_open       ftw
+		fts_read       nftw
+		fts_children   ftw64
+		fts_set        nftw64
+		fts_close
+
+
+config EGLIBC_OPTION_EGLIBC_GETLOGIN
+	bool "The getlogin function"
+	default y
+	select EGLIBC_OPTION_EGLIBC_UTMP
+	help
+	  This function group includes the 'getlogin' and 'getlogin_r'
+	  functions, which return the user name associated by the login
+	  activity with the current process's controlling terminal.
+
+	  With this option group disabled, the 'glob' function will not
+	  fall back on 'getlogin' to find the user's login name for tilde
+	  expansion when the 'HOME' environment variable is not set.
+
+
+config EGLIBC_OPTION_EGLIBC_IDN
+	bool "International domain names support"
+	default y
+	help
+	  This option group includes the `libcidn' library which
+	  provides support for international domain names.
+
+
+config EGLIBC_OPTION_EGLIBC_INET
+	bool "Networking support"
+	default y
+	help
+	  This option group includes networking-specific functions and
+	  data.  With EGLIBC_OPTION_EGLIBC_INET disabled, the EGLIBC
+	  installation and API changes as follows:
+
+	  - The following libraries are not installed:
+
+		libanl
+		libnsl
+		libnss_compat
+		libnss_dns
+		libnss_hesiod
+		libnss_nis
+		libnss_nisplus
+		libresolv
+		 
+	  - The following functions and variables are omitted from libc:
+
+		authdes_create           hstrerror              svc_fdset
+		authdes_getucred         htonl                  svc_getreq
+		authdes_pk_create        htons                  svc_getreq_common
+		authnone_create          if_freenameindex       svc_getreq_poll
+		authunix_create          if_indextoname         svc_getreqset
+		authunix_create_default  if_nameindex           svc_max_pollfd
+		bindresvport             if_nametoindex         svc_pollfd
+		callrpc                  in6addr_any            svcraw_create
+		cbc_crypt                in6addr_loopback       svc_register
+		clnt_broadcast           inet6_opt_append       svc_run
+		clnt_create              inet6_opt_find         svc_sendreply
+		clnt_pcreateerror        inet6_opt_finish       svctcp_create
+		clnt_perrno              inet6_opt_get_val      svcudp_bufcreate
+		clnt_perror              inet6_opt_init         svcudp_create
+		clntraw_create           inet6_option_alloc     svcudp_enablecache
+		clnt_spcreateerror       inet6_option_append    svcunix_create
+		clnt_sperrno             inet6_option_find      svcunixfd_create
+		clnt_sperror             inet6_option_init      svc_unregister
+		clnttcp_create           inet6_option_next      user2netname
+		clntudp_bufcreate        inet6_option_space     xdecrypt
+		clntudp_create           inet6_opt_next         xdr_accepted_reply
+		clntunix_create          inet6_opt_set_val      xdr_array
+		des_setparity            inet6_rth_add          xdr_authdes_cred
+		ecb_crypt                inet6_rth_getaddr      xdr_authdes_verf
+		endaliasent              inet6_rth_init         xdr_authunix_parms
+		endhostent               inet6_rth_reverse      xdr_bool
+		endnetent                inet6_rth_segments     xdr_bytes
+		endnetgrent              inet6_rth_space        xdr_callhdr
+		endprotoent              inet_addr              xdr_callmsg
+		endrpcent                inet_aton              xdr_char
+		endservent               inet_lnaof             xdr_cryptkeyarg
+		ether_aton               inet_makeaddr          xdr_cryptkeyarg2
+		ether_aton_r             inet_netof             xdr_cryptkeyres
+		ether_hostton            inet_network           xdr_des_block
+		ether_line               inet_nsap_addr         xdr_double
+		ether_ntoa               inet_nsap_ntoa         xdr_enum
+		ether_ntoa_r             inet_ntoa              xdr_float
+		ether_ntohost            inet_ntop              xdr_free
+		freeaddrinfo             inet_pton              xdr_getcredres
+		freeifaddrs              innetgr                xdr_hyper
+		gai_strerror             iruserok               xdr_int
+		getaddrinfo              iruserok_af            xdr_int16_t
+		getaliasbyname           key_decryptsession     xdr_int32_t
+		getaliasbyname_r         key_decryptsession_pk  xdr_int64_t
+		getaliasent              key_encryptsession     xdr_int8_t
+		getaliasent_r            key_encryptsession_pk  xdr_keybuf
+		gethostbyaddr            key_gendes             xdr_key_netstarg
+		gethostbyaddr_r          key_get_conv           xdr_key_netstres
+		gethostbyname            key_secretkey_is_set   xdr_keystatus
+		gethostbyname2           key_setnet             xdr_long
+		gethostbyname2_r         key_setsecret          xdr_longlong_t
+		gethostbyname_r          netname2host           xdrmem_create
+		gethostent               netname2user           xdr_netnamestr
+		gethostent_r             ntohl                  xdr_netobj
+		getifaddrs               ntohs                  xdr_opaque
+		getipv4sourcefilter      passwd2des             xdr_opaque_auth
+		get_myaddress            pmap_getmaps           xdr_pmap
+		getnameinfo              pmap_getport           xdr_pmaplist
+		getnetbyaddr             pmap_rmtcall           xdr_pointer
+		getnetbyaddr_r           pmap_set               xdr_quad_t
+		getnetbyname             pmap_unset             xdrrec_create
+		getnetbyname_r           rcmd                   xdrrec_endofrecord
+		getnetent                rcmd_af                xdrrec_eof
+		getnetent_r              registerrpc            xdrrec_skiprecord
+		getnetgrent              res_init               xdr_reference
+		getnetgrent_r            rexec                  xdr_rejected_reply
+		getnetname               rexec_af               xdr_replymsg
+		getprotobyname           rexecoptions           xdr_rmtcall_args
+		getprotobyname_r         rpc_createerr          xdr_rmtcallres
+		getprotobynumber         rresvport              xdr_short
+		getprotobynumber_r       rresvport_af           xdr_sizeof
+		getprotoent              rtime                  xdrstdio_create
+		getprotoent_r            ruserok                xdr_string
+		getpublickey             ruserok_af             xdr_u_char
+		getrpcbyname             ruserpass              xdr_u_hyper
+		getrpcbyname_r           setaliasent            xdr_u_int
+		getrpcbynumber           sethostent             xdr_uint16_t
+		getrpcbynumber_r         setipv4sourcefilter    xdr_uint32_t
+		getrpcent                setnetent              xdr_uint64_t
+		getrpcent_r              setnetgrent            xdr_uint8_t
+		getrpcport               setprotoent            xdr_u_long
+		getsecretkey             setrpcent              xdr_u_longlong_t
+		getservbyname            setservent             xdr_union
+		getservbyname_r          setsourcefilter        xdr_unixcred
+		getservbyport            svcauthdes_stats       xdr_u_quad_t
+		getservbyport_r          svcerr_auth            xdr_u_short
+		getservent               svcerr_decode          xdr_vector
+		getservent_r             svcerr_noproc          xdr_void
+		getsourcefilter          svcerr_noprog          xdr_wrapstring
+		h_errlist                svcerr_progvers        xencrypt
+		h_errno                  svcerr_systemerr       xprt_register
+		herror                   svcerr_weakauth        xprt_unregister
+		h_nerr                   svc_exit
+		host2netname             svcfd_create
+
+	  - The rpcgen, nscd, and rpcinfo commands are not installed.
+
+	  - The 'rpc' file (a text file listing RPC services) is not installed.
+
+	  Socket-related system calls do not fall in this option group,
+	  because many are also used for other inter-process
+	  communication mechanisms.  For example, the 'syslog' routines
+	  use Unix-domain sockets to communicate with the syslog daemon;
+	  syslog is valuable in non-networked contexts.
+
+
+config EGLIBC_OPTION_EGLIBC_INET_ANL
+	bool "Asynchronous name lookup"
+	default y
+	select EGLIBC_OPTION_EGLIBC_INET
+	help
+	  This option group includes the `libanl' library which
+	  provides support for asynchronous name lookup.
+
+
+config EGLIBC_OPTION_EGLIBC_LIBM
+	bool "libm (math library)"
+	default y
+	help
+	  This option group includes the 'libm' library, containing
+	  mathematical functions.  If this option group is omitted, then
+	  an EGLIBC installation does not include shared or unshared versions
+	  of the math library.
+
+	  Note that this does not remove all floating-point related
+	  functionality from EGLIBC; for example, 'printf' and 'scanf'
+	  can still print and read floating-point values with this option
+	  group disabled.
+
+	  Note that the ISO Standard C++ library 'libstdc++' depends on
+	  EGLIBC's math library 'libm'.  If you disable this option
+	  group, you will not be able to build 'libstdc++' against the
+	  resulting EGLIBC installation.
+
+
+config EGLIBC_OPTION_EGLIBC_LIBM_BIG
+	bool "Math library size"
+	default y
+	help
+	  This option group enables default configuration of the math library.
+	  Not selecting this option group removes most of the extended and
+	  double precision math functions and replaces them with wrappers
+	  to the single precision couterparts.
+	  Doing so greatly degrades quality of calculations carried
+	  out by the functions of the math library, but also significantly
+	  reduces the size of the libm.
+	  This option group is useful for systems that do not rely on precise
+	  floating point math.
+
+
+config EGLIBC_OPTION_EGLIBC_LOCALES
+	bool "Locale definitions"
+	default y
+	help
+	  This option group includes all locale definitions other than
+	  that for the "C" locale.  If this option group is omitted, then
+	  only the "C" locale is supported.
+
+
+config EGLIBC_OPTION_EGLIBC_LOCALE_CODE
+	bool "Locale functions"
+	default y
+	select EGLIBC_OPTION_POSIX_C_LANG_WIDE_CHAR
+	help
+	  This option group includes locale support functions, programs,
+	  and libraries.  With EGLIBC_OPTION_EGLIBC_LOCALE_CODE disabled,
+	  EGLIBC supports only the 'C' locale (also known as 'POSIX'),
+	  and ignores the settings of the 'LANG' and 'LC_*' environment
+	  variables.
+
+	  With EGLIBC_OPTION_EGLIBC_LOCALE_CODE disabled, the following
+	  functions are omitted from libc:
+
+		duplocale   localeconv  nl_langinfo    rpmatch  strfmon_l
+		freelocale  newlocale   nl_langinfo_l  strfmon  uselocale
+
+	  Furthermore, only the LC_CTYPE and LC_TIME categories of the
+	  standard "C" locale are available.
+
+	  The EGLIBC_OPTION_EGLIBC_CATGETS option group depends on this option
+	  group; if you disable EGLIBC_OPTION_EGLIBC_LOCALE_CODE, you must also
+	  disable EGLIBC_OPTION_EGLIBC_CATGETS.
+
+
+config EGLIBC_OPTION_EGLIBC_MEMUSAGE
+	bool "Memory profiling library"
+	default y
+	help
+	  This option group includes the `libmemusage' library and
+	  the `memusage' and `memusagestat' utilities.
+	  These components provide memory profiling functions.
+
+	  EGLIBC_OPTION_EGLIBC_MEMUSAGE_DEFAULT_BUFFER_SIZE
+
+	  Libmemusage library buffers the profiling data in memory
+	  before writing it out to disk.  By default, the library
+	  allocates 1.5M buffer, which can be substantial for some
+	  systems.  EGLIBC_OPTION_EGLIBC_MEMUSAGE_DEFAULT_BUFFER_SIZE option
+	  allows to change the default buffer size.  It specifies
+	  the number of entries the buffer should have.
+	  On most architectures one buffer entry amounts to 48 bytes,
+	  so setting this option to the value of 512 will reduce the size of
+	  the memory buffer to 24K.
+
+
+config EGLIBC_OPTION_EGLIBC_NIS
+	bool "Support for NIS, NIS+, and the special 'compat' services."
+	default n
+	select EGLIBC_OPTION_EGLIBC_INET
+	select EGLIBC_OPTION_EGLIBC_SUNRPC
+	help
+	  This option group includes the NIS, NIS+, and 'compat' Name
+	  Service Switch service libraries.  When it is disabled, those
+	  services libraries are not installed; you should remove any
+	  references to them from your 'nsswitch.conf' file.
+
+	  This option group depends on the EGLIBC_OPTION_EGLIBC_INET option
+	  group; you must enable that to enable this option group.
+
+
+config EGLIBC_OPTION_EGLIBC_NSSWITCH
+	bool "Name service switch (nsswitch) support"
+	default y
+	select EGLIBC_OPTION_EGLIBC_INET
+	help
+
+	  This option group includes support for the 'nsswitch' facility.
+	  With this option group enabled, all EGLIBC functions for
+	  accessing various system databases (passwords and groups;
+	  networking; aliases; public keys; and so on) consult the
+	  '/etc/nsswitch.conf' configuration file to decide how to handle
+	  queries.
+
+	  With this option group disabled, EGLIBC uses a fixed list of
+	  services to satisfy queries on each database, as requested by
+	  configuration files specified when EGLIBC is built.  Your
+	  'option-groups.config' file must set the following two
+	  variables:
+
+	  EGLIBC_OPTION_EGLIBC_NSSWITCH_FIXED_CONFIG
+
+		Set this to the name of a file whose contents observe the
+		same syntax as an ordinary '/etc/nsswitch.conf' file.  The
+		EGLIBC build process parses this file just as EGLIBC would
+		at run time if EGLIBC_NSSWITCH were enabled, and
+		produces a C library that uses the nsswitch service
+		libraries to search for database entries as this file
+		specifies, instead of consulting '/etc/nsswitch.conf' at run
+		time.
+
+		This should be an absolute filename.  The EGLIBC build
+		process may use it from several different working
+		directories.  It may include references to Makefile
+		variables like 'common-objpfx' (the top of the build tree,
+		with a trailing slash), or '..' (the top of the source tree,
+		with a trailing slash).
+
+		The EGLIBC source tree includes a sample configuration file
+		named 'nss/fixed-nsswitch.conf'; for simple configurations,
+		you will probably want to delete references to databases not
+		needed on your system.
+
+	  EGLIBC_OPTION_EGLIBC_NSSWITCH_FIXED_FUNCTIONS
+
+		The EGLIBC build process uses this file to decide which
+		functions to make available from which service libraries.
+		The file 'nss/fixed-nsswitch.functions' serves as a sample
+		configuration file for this setting, and explains its syntax
+		and meaning in more detail.
+
+		This should be an absolute file name.  The EGLIBC build
+		process may use it from several different working
+		directories.  It may include references to Makefile
+		variables like 'common-objpfx' (the top of the build tree,
+		with a trailing slash), or '..' (the top of the source tree,
+		with a trailing slash).
+
+		Be sure to mention each function in each service you wish to
+		use.  If you do not mention a service's function here, the
+		EGLIBC database access functions will not find it, even if
+		it is listed in the EGLIBC_OPTION_EGLIBC_NSSWITCH_FIXED_CONFIG
+		file.
+
+	  In this arrangement, EGLIBC will not use the 'dlopen' and
+	  'dlsym' functions to find database access functions.  Instead,
+	  libc hard-codes references to the service libraries' database
+	  access functions.  You must explicitly link your program
+	  against the name service libraries (those whose names start
+	  with 'libnss_', in the sysroot's '/lib' directory) whose
+	  functions you intend to use.  This arrangement helps
+	  system-wide static analysis tools decide which functions a
+	  system actually uses.
+
+	  Note that some nsswitch service libraries require other option
+	  groups to be enabled; for example, the EGLIBC_OPTION_EGLIBC_INET
+	  option group must be enabled to use the 'libnss_dns.so.2'
+	  service library, which uses the Domain Name System network
+	  protocol to answer queries.
+
+
+config EGLIBC_OPTION_EGLIBC_RCMD
+	bool "Support for 'rcmd' and related library functions"
+	default y
+	select EGLIBC_OPTION_EGLIBC_INET
+	help
+	  This option group includes functions for running commands on
+	  remote machines via the 'rsh' protocol, and doing authentication
+	  related to those functions.  This also includes functions that
+	  use the 'rexec' protocol.
+
+	  This option group includes the following functions:
+
+		rcmd            ruserok
+		rcmd_af         ruserok_af
+		rexec           iruserok
+		rexec_af        iruserok_af
+		rresvport       ruserpass
+		rresvport_af
+
+
+config EGLIBC_OPTION_EGLIBC_RTLD_DEBUG
+	bool "Runtime linker debug print outs"
+	default y
+	help
+	  This option group enables debug output of the runtime linker
+	  which is activated via LD_DEBUG and LD_TRACE_PRELINKING
+	  environment variables.  Disabling this option group yields
+	  a smaller runtime linker binary.
+	  BEWARE: Disabling this option group is likely to break
+	  the `ldd' utility which may also be used by the prelinker.
+	  In particular, the `--unused' ldd option will not work correctly.
+
+
+config EGLIBC_OPTION_EGLIBC_SPAWN
+	bool "Support for POSIX posix_spawn functions"
+	default y
+	help
+	  This option group includes the POSIX functions for executing
+	  programs in child processes without using 'fork' or 'vfork'.
+
+	  This option group includes the following functions:
+
+		posix_spawn
+		posix_spawnattr_destroy
+		posix_spawnattr_getflags
+		posix_spawnattr_getpgroup
+		posix_spawnattr_getschedparam
+		posix_spawnattr_getschedpolicy
+		posix_spawnattr_getsigdefault
+		posix_spawnattr_getsigmask
+		posix_spawnattr_init
+		posix_spawnattr_setflags
+		posix_spawnattr_setpgroup
+		posix_spawnattr_setschedparam
+		posix_spawnattr_setschedpolicy
+		posix_spawnattr_setsigdefault
+		posix_spawnattr_setsigmask
+		posix_spawn_file_actions_addclose
+		posix_spawn_file_actions_adddup2
+		posix_spawn_file_actions_addopen
+		posix_spawn_file_actions_destroy
+		posix_spawn_file_actions_init
+		posix_spawnp
+
+	  This option group also provides the ability for the iconv,
+	  localedef, and locale programs to operate transparently on
+	  compressed charset definitions.  When this option group is
+	  disabled, those programs will only operate on uncompressed
+	  charmap files.
+
+
+config EGLIBC_OPTION_EGLIBC_STREAMS
+	bool "Support for accessing STREAMS."
+	default y
+	help
+	  This option group includes functions for reading and writing
+	  messages to and from STREAMS.  The STREAMS interface provides a
+	  uniform mechanism for implementing networking services and other
+	  character-based I/O.  (STREAMS are not to be confused with
+	  <stdio.h> FILE objects, also called 'streams'.)
+
+	  This option group includes the following functions:
+
+		getmsg          putpmsg
+		getpmsg         fattach
+		isastream       fdetach
+		putmsg
+
+
+config EGLIBC_OPTION_EGLIBC_SUNRPC
+	bool "Support for the Sun 'RPC' protocol."
+	default n
+	select EGLIBC_OPTION_EGLIBC_INET
+	help
+	  This option group includes support for the Sun RPC protocols,
+	  including the 'rpcgen' and 'rpcinfo' programs.
+
+
+config EGLIBC_OPTION_EGLIBC_UTMP
+	bool "Older access functions for 'utmp' login records"
+	default y
+	help
+	  This option group includes the older 'utent' family of
+	  functions for accessing user login records in the 'utmp' file.
+	  POSIX omits these functions in favor of the 'utxent' family,
+	  and they are obsolete on systems other than Linux.
+
+	  This option group includes the following functions:
+
+		endutent
+		getutent
+		getutent_r
+		getutid
+		getutid_r
+		getutline
+		getutline_r
+		logwtmp
+		pututline
+		setutent
+		updwtmp
+		utmpname
+
+	  This option group includes the following libraries:
+
+		libutil.so (and libutil.a)
+
+
+config EGLIBC_OPTION_EGLIBC_UTMPX
+	bool "POSIX access functions for 'utmp' login records"
+	default y
+	select EGLIBC_OPTION_EGLIBC_UTMP    
+	help
+	  This option group includes the POSIX functions for reading and
+	  writing user login records in the 'utmp' file (usually
+	  '/var/run/utmp').  The POSIX functions operate on 'struct
+	  utmpx' structures, as opposed to the family of older 'utent'
+	  functions, which operate on 'struct utmp' structures.
+
+	  This option group includes the following functions:
+
+		endutxent
+		getutmp
+		getutmpx
+		getutxent
+		getutxid
+		getutxline
+		pututxline
+		setutxent
+		updwtmpx
+		utmpxname
+
+
+config EGLIBC_OPTION_EGLIBC_WORDEXP
+	bool "Shell-style word expansion"
+	default y
+	help
+	  This option group includes the 'wordexp' function for
+	  performing word expansion in the manner of the shell, and the
+	  accompanying 'wordfree' function.
+
+
+config EGLIBC_OPTION_POSIX_C_LANG_WIDE_CHAR
+	bool "ISO C library wide character functions, excluding I/O"
+	default y
+	help
+	  This option group includes the functions defined by the ISO C
+	  standard for working with wide and multibyte characters in
+	  memory.  Functions for reading and writing wide and multibyte
+	  characters from and to files call in the
+	  EGLIBC_OPTION_POSIX_WIDE_CHAR_DEVICE_IO option group.
+
+	  This option group includes the following functions:
+
+		btowc         mbsinit       wcscspn       wcstoll
+		iswalnum      mbsrtowcs     wcsftime      wcstombs
+		iswalpha      mbstowcs      wcslen        wcstoul
+		iswblank      mbtowc        wcsncat       wcstoull
+		iswcntrl      swprintf      wcsncmp       wcstoumax
+		iswctype      swscanf       wcsncpy       wcsxfrm
+		iswdigit      towctrans     wcspbrk       wctob
+		iswgraph      towlower      wcsrchr       wctomb
+		iswlower      towupper      wcsrtombs     wctrans
+		iswprint      vswprintf     wcsspn        wctype
+		iswpunct      vswscanf      wcsstr        wmemchr
+		iswspace      wcrtomb       wcstod        wmemcmp
+		iswupper      wcscat        wcstof        wmemcpy
+		iswxdigit     wcschr        wcstoimax     wmemmove
+		mblen         wcscmp        wcstok        wmemset
+		mbrlen        wcscoll       wcstol
+		mbrtowc       wcscpy        wcstold
+
+
+config EGLIBC_OPTION_POSIX_REGEXP
+	bool "Regular expressions"
+	default y
+	help
+	  This option group includes the POSIX regular expression
+	  functions, and the associated non-POSIX extensions and
+	  compatibility functions.
+
+	  With EGLIBC_OPTION_POSIX_REGEXP disabled, the following functions are
+	  omitted from libc:
+
+		re_comp                 re_max_failures         regcomp
+		re_compile_fastmap      re_search               regerror
+		re_compile_pattern      re_search_2             regexec
+		re_exec                 re_set_registers        regfree
+		re_match                re_set_syntax           rpmatch
+		re_match_2              re_syntax_options
+
+	  Furthermore, the compatibility regexp interface defined in the
+	  <regexp.h> header file, 'compile', 'step', and 'advance', is
+	  omitted.
+
+
+config EGLIBC_OPTION_POSIX_REGEXP_GLIBC
+	bool "Regular expressions from GLIBC"
+	default y
+	select EGLIBC_OPTION_POSIX_REGEXP
+	help
+	  This option group specifies which regular expression
+	  library to use.  The choice is between regex
+	  implementation from GLIBC and regex implementation from
+	  libiberty.  The GLIBC variant is fully POSIX conformant and
+	  optimized for speed; regex from libiberty is more than twice
+	  as small while still is enough for most practical purposes.
+
+
+config EGLIBC_OPTION_POSIX_WIDE_CHAR_DEVICE_IO
+	bool "Input and output functions for wide characters"
+	default y
+	select EGLIBC_OPTION_POSIX_C_LANG_WIDE_CHAR
+	help
+	  This option group includes functions for reading and writing
+	  wide characters to and from <stdio.h> streams.
+
+	  This option group includes the following functions:
+
+		fgetwc        fwprintf      putwchar      vwscanf
+		fgetws        fwscanf       ungetwc       wprintf
+		fputwc        getwc         vfwprintf     wscanf
+		fputws        getwchar      vfwscanf
+		fwide         putwc         vwprintf
+
+	  This option group further includes the following unlocked
+	  variants of the above functions:
+
+		fgetwc_unlocked           getwc_unlocked
+		fgetws_unlocked           getwchar_unlocked
+		fputwc_unlocked           putwc_unlocked
+		fputws_unlocked           putwchar_unlocked
+					
+	  Note that the GNU standard C++ library, 'libstdc++.so', uses
+	  some of these functions; you will not be able to link or run
+	  C++ programs if you disable this option group.
+
+	  This option group also affects the behavior of the following
+	  functions:
+
+		fdopen
+		fopen
+		fopen64
+		freopen
+		freopen64
+
+	  These functions all take an OPENTYPE parameter which may
+	  contain a string of the form ",ccs=CHARSET", indicating that
+	  the underlying file uses the character set named CHARSET.
+	  This produces a wide-oriented stream, which is only useful
+	  when the functions included in this option group are present.
+	  If the user attempts to open a file specifying a character set
+	  in the OPENTYPE parameter, and EGLIBC was built with this
+	  option group disabled, the function returns NULL, and sets
+	  errno to EINVAL.
diff --git a/toolchain/glibc/headers/Makefile b/toolchain/glibc/headers/Makefile
new file mode 100644
index 0000000..f9f411b
--- /dev/null
+++ b/toolchain/glibc/headers/Makefile
@@ -0,0 +1,27 @@
+PATH_PREFIX:=..
+VARIANT:=headers
+
+include ../common.mk
+
+define Host/Compile
+
+endef
+
+define Host/Install
+	$(call Host/SetToolchainInfo)
+	mkdir -p $(BUILD_DIR_TOOLCHAIN)/$(LIBC)-dev/{include,lib}
+	$(MAKE) -C $(CUR_BUILD_DIR) \
+		BUILD_CFLAGS="$(HOST_CFLAGS)" \
+		install_root="$(BUILD_DIR_TOOLCHAIN)/$(LIBC)-dev" \
+		install-bootstrap-headers=yes \
+		install-headers
+	$(MAKE) -C $(CUR_BUILD_DIR) \
+		csu/subdir_lib
+	( cd $(CUR_BUILD_DIR); \
+		$(CP) csu/crt1.o csu/crti.o csu/crtn.o $(BUILD_DIR_TOOLCHAIN)/$(LIBC)-dev/lib/ \
+	)
+	$(TARGET_CC) -nostdlib -nostartfiles -shared -x c /dev/null \
+		-o $(BUILD_DIR_TOOLCHAIN)/$(LIBC)-dev/lib/libc.so
+endef
+
+$(eval $(call HostBuild))
diff --git a/toolchain/glibc/include/libintl.h b/toolchain/glibc/include/libintl.h
new file mode 100644
index 0000000..69cb887
--- /dev/null
+++ b/toolchain/glibc/include/libintl.h
@@ -0,0 +1,6 @@
+#ifndef __FAKE_LIBINTL_H
+#define __FAKE_LIBINTL_H
+
+#define _(X) (X)
+
+#endif
diff --git a/toolchain/glibc/patches/2.15/001-fix_autoconf_macro.patch b/toolchain/glibc/patches/2.15/001-fix_autoconf_macro.patch
new file mode 100644
index 0000000..55b26c7
--- /dev/null
+++ b/toolchain/glibc/patches/2.15/001-fix_autoconf_macro.patch
@@ -0,0 +1,48 @@
+--- a/libc/aclocal.m4
++++ b/libc/aclocal.m4
+@@ -88,6 +88,12 @@
+ fi
+ rm -fr contest*])
+ 
++dnl Test a compiler option or options with an empty input file.
++dnl LIBC_TRY_CC_OPTION([options], [action-if-true], [action-if-false])
++AC_DEFUN([LIBC_TRY_CC_OPTION],
++[AS_IF([AC_TRY_COMMAND([${CC-cc} $1 -xc /dev/null -S -o /dev/null])],
++ [$2], [$3])])
++
+ AC_DEFUN([LIBC_PROG_BINUTILS],
+ [# Was a --with-binutils option given?
+ if test -n "$path_binutils"; then
+--- a/libc/configure
++++ b/libc/configure
+@@ -7404,7 +7404,14 @@
+ else
+   libc_cv_cc_nofma=
+ for opt in -ffp-contract=off -mno-fused-madd; do
+-  LIBC_TRY_CC_OPTION($opt, libc_cv_cc_nofma=$opt; break)
++  if { ac_try='${CC-cc} $opt -xc /dev/null -S -o /dev/null'
++  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
++  (eval $ac_try) 2>&5
++  ac_status=$?
++  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
++  test $ac_status = 0; }; }; then :
++  libc_cv_cc_nofma=$opt; break
++fi
+ done
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_cc_nofma" >&5
+--- a/libc/configure.in
++++ b/libc/configure.in
+@@ -2238,10 +2238,9 @@
+ 		 libc_cv_cc_submachine, [dnl
+   libc_cv_cc_submachine=no
+   for opt in "-march=$submachine" "-mcpu=$submachine"; do
+-    if AC_TRY_COMMAND([${CC-cc} $opt -xc /dev/null -S -o /dev/null]); then
++    LIBC_TRY_CC_OPTION([$opt], [
+       libc_cv_cc_submachine="$opt"
+-      break
+-    fi
++      break], [])
+   done])
+   if test "x$libc_cv_cc_submachine" = xno; then
+     AC_MSG_ERROR([${CC-cc} does not support $submachine])
diff --git a/toolchain/glibc/patches/2.15/005-versions.patch b/toolchain/glibc/patches/2.15/005-versions.patch
new file mode 100644
index 0000000..da9d2ba
--- /dev/null
+++ b/toolchain/glibc/patches/2.15/005-versions.patch
@@ -0,0 +1,11 @@
+--- a/libc/configure.in
++++ b/libc/configure.in
+@@ -1037,7 +1037,7 @@
+   critic_missing="$critic_missing gcc")
+ AC_CHECK_PROG_VER(MAKE, gnumake gmake make, --version,
+   [GNU Make[^0-9]*\([0-9][0-9.]*\)],
+-  [3.79* | 3.[89]*], critic_missing="$critic_missing make")
++  [3.79* | 3.[89]* | 4.* ], critic_missing="$critic_missing make")
+ 
+ AC_CHECK_PROG_VER(MSGFMT, gnumsgfmt gmsgfmt msgfmt, --version,
+   [GNU gettext.* \([0-9]*\.[0-9.]*\)],
diff --git a/toolchain/glibc/patches/2.15/050-all_glibc-2.14-leak-revert-crash.patch b/toolchain/glibc/patches/2.15/050-all_glibc-2.14-leak-revert-crash.patch
new file mode 100644
index 0000000..d1e19aa
--- /dev/null
+++ b/toolchain/glibc/patches/2.15/050-all_glibc-2.14-leak-revert-crash.patch
@@ -0,0 +1,110 @@
+partially revert commit 4bff6e0175ed195871f4e01cc4c4c33274b8f6e3 - caused segmentation faults in dlopen
+
+References:
+http://comments.gmane.org/gmane.comp.lib.glibc.user/1227
+http://sourceware.org/ml/libc-alpha/2011-06/msg00006.html
+
+diff --git a/libc/elf/dl-close.c b/libc/elf/dl-close.c
+index 4b17bf8..733cc1b 100644
+--- a/libc/elf/dl-close.c
++++ b/libc/elf/dl-close.c
+@@ -119,17 +119,8 @@ _dl_close_worker (struct link_map *map)
+   if (map->l_direct_opencount > 0 || map->l_type != lt_loaded
+       || dl_close_state != not_pending)
+     {
+-      if (map->l_direct_opencount == 0)
+-	{
+-	  if (map->l_type == lt_loaded)
+-	    dl_close_state = rerun;
+-	  else if (map->l_type == lt_library)
+-	    {
+-	      struct link_map **oldp = map->l_initfini;
+-	      map->l_initfini = map->l_orig_initfini;
+-	      _dl_scope_free (oldp);
+-	    }
+-	}
++      if (map->l_direct_opencount == 0 && map->l_type == lt_loaded)
++	dl_close_state = rerun;
+ 
+       /* There are still references to this object.  Do nothing more.  */
+       if (__builtin_expect (GLRO_dl_debug_mask & DL_DEBUG_FILES, 0))
+diff --git a/libc/elf/dl-deps.c b/libc/elf/dl-deps.c
+index 51cb2fa..eddcbf0 100644
+--- a/libc/elf/dl-deps.c
++++ b/libc/elf/dl-deps.c
+@@ -489,6 +489,7 @@ _dl_map_object_deps (struct link_map *map,
+ 		  nneeded * sizeof needed[0]);
+ 	  atomic_write_barrier ();
+ 	  l->l_initfini = l_initfini;
++	  l->l_free_initfini = 1;
+ 	}
+ 
+       /* If we have no auxiliary objects just go on to the next map.  */
+@@ -689,6 +690,7 @@ Filters not supported with LD_TRACE_PRELINKING"));
+   l_initfini[nlist] = NULL;
+   atomic_write_barrier ();
+   map->l_initfini = l_initfini;
++  map->l_free_initfini = 1;
+   if (l_reldeps != NULL)
+     {
+       atomic_write_barrier ();
+@@ -697,7 +699,7 @@ Filters not supported with LD_TRACE_PRELINKING"));
+       _dl_scope_free (old_l_reldeps);
+     }
+   if (old_l_initfini != NULL)
+-      map->l_orig_initfini = old_l_initfini;
++    _dl_scope_free (old_l_initfini);
+ 
+   if (errno_reason)
+     _dl_signal_error (errno_reason == -1 ? 0 : errno_reason, objname,
+diff --git a/libc/elf/dl-libc.c b/libc/elf/dl-libc.c
+index f44fa10..7563093 100644
+--- a/libc/elf/dl-libc.c
++++ b/libc/elf/dl-libc.c
+@@ -284,6 +284,10 @@ libc_freeres_fn (free_mem)
+ 	      if (! old->dont_free)
+ 		free (old);
+ 	    }
++
++	  /* Free the initfini dependency list.  */
++	  if (l->l_free_initfini)
++	    free (l->l_initfini);
+ 	}
+ 
+       if (__builtin_expect (GL(dl_ns)[ns]._ns_global_scope_alloc, 0) != 0
+diff --git a/libc/elf/rtld.c b/libc/elf/rtld.c
+index b93a01f..2fc83ce 100644
+--- a/libc/elf/rtld.c
++++ b/libc/elf/rtld.c
+@@ -2277,6 +2277,7 @@ ERROR: ld.so: object '%s' cannot be loaded as audit interface: %s; ignored.\n",
+ 	      lnp->dont_free = 1;
+ 	      lnp = lnp->next;
+ 	    }
++	  l->l_free_initfini = 0;
+ 
+ 	  if (l != &GL(dl_rtld_map))
+ 	    _dl_relocate_object (l, l->l_scope, GLRO(dl_lazy) ? RTLD_LAZY : 0,
+diff --git a/libc/include/link.h b/libc/include/link.h
+index e877104..b1b4065 100644
+--- a/libc/include/link.h
++++ b/libc/include/link.h
+@@ -192,6 +192,9 @@ struct link_map
+ 						 during LD_TRACE_PRELINKING=1
+ 						 contains any DT_SYMBOLIC
+ 						 libraries.  */
++    unsigned int l_free_initfini:1; /* Nonzero if l_initfini can be
++				       freed, ie. not allocated with
++				       the dummy malloc in ld.so.  */
+ 
+     /* Collected information about own RPATH directories.  */
+     struct r_search_path_struct l_rpath_dirs;
+@@ -240,9 +243,6 @@ struct link_map
+ 
+     /* List of object in order of the init and fini calls.  */
+     struct link_map **l_initfini;
+-    /* The init and fini list generated at startup, saved when the
+-       object is also loaded dynamically.  */
+-    struct link_map **l_orig_initfini;
+ 
+     /* List of the dependencies introduced through symbol binding.  */
+     struct link_map_reldeps
diff --git a/toolchain/glibc/patches/2.15/100-fix_cross_rpcgen.patch b/toolchain/glibc/patches/2.15/100-fix_cross_rpcgen.patch
new file mode 100644
index 0000000..8fe5cf3
--- /dev/null
+++ b/toolchain/glibc/patches/2.15/100-fix_cross_rpcgen.patch
@@ -0,0 +1,71 @@
+--- a/libc/sunrpc/proto.h
++++ b/libc/sunrpc/proto.h
+@@ -56,12 +56,14 @@ void add_type(int len, const char *type)
+    $build's C library and $host's GLIBC.  */
+ #ifdef _CROSS_RPCGEN_
+ 
++#undef stpcpy
++
+ /* Rather then defining _GNU_SOURCE before including $build's <string.h>
+    we just declare stpcpy here.  */
+ extern char *stpcpy (char *, const char *);
+ 
+-/* Use $build's i18n support as we can't use $host's.  */
+-#define _(X) (gettext (X))
++/* Do not use i18n support  */
++#define _(X) (X)
+ 
+ /* rpcgen sources check for __GNU_LIBRARY__ to tweak for GLIBC code
+    that rpcgen generates.  The proper fix would be to rename all those checks
+--- a/libc/sunrpc/rpc/types.h
++++ b/libc/sunrpc/rpc/types.h
+@@ -70,18 +70,23 @@ typedef unsigned long rpcport_t;
+ #endif
+ 
+ #ifndef __u_char_defined
+-typedef __u_char u_char;
+-typedef __u_short u_short;
+-typedef __u_int u_int;
+-typedef __u_long u_long;
+-typedef __quad_t quad_t;
+-typedef __u_quad_t u_quad_t;
+-typedef __fsid_t fsid_t;
++typedef unsigned char u_char;
++typedef unsigned short u_short;
++typedef unsigned int u_int;
++typedef unsigned long u_long;
++#if __WORDSIZE == 64
++typedef long int quad_t;
++typedef unsigned long int u_quad_t;
++#elif defined __GLIBC_HAVE_LONG_LONG
++typedef long long int quad_t;
++typedef unsigned long long int u_quad_t;
++#endif
++typedef u_quad_t fsid_t;
+ # define __u_char_defined
+ #endif
+-#ifndef __daddr_t_defined
+-typedef __daddr_t daddr_t;
+-typedef __caddr_t caddr_t;
++#if !defined(__daddr_t_defined) && defined(linux)
++typedef long int daddr_t;
++typedef char *caddr_t;
+ # define __daddr_t_defined
+ #endif
+ 
+--- a/libc/sunrpc/rpc_main.c
++++ b/libc/sunrpc/rpc_main.c
+@@ -997,9 +997,10 @@ mkfile_output (struct commandline *cmd)
+ 	abort ();
+       temp = rindex (cmd->infile, '.');
+       cp = stpcpy (mkfilename, "Makefile.");
+-      if (temp != NULL)
+-	*((char *) stpncpy (cp, cmd->infile, temp - cmd->infile)) = '\0';
+-      else
++      if (temp != NULL) {
++        strncpy(cp, cmd->infile, temp - cmd->infile);
++        cp[temp - cmd->infile - 1] = 0;
++      } else
+ 	stpcpy (cp, cmd->infile);
+ 
+     }
diff --git a/toolchain/glibc/patches/2.15/110-fix_cross_zic.patch b/toolchain/glibc/patches/2.15/110-fix_cross_zic.patch
new file mode 100644
index 0000000..221eb28
--- /dev/null
+++ b/toolchain/glibc/patches/2.15/110-fix_cross_zic.patch
@@ -0,0 +1,27 @@
+--- a/libc/timezone/zic.c
++++ b/libc/timezone/zic.c
+@@ -8,6 +8,8 @@ static char	elsieid[] = "@(#)zic.c	8.19"
+ #ifdef CROSS_ZIC
+ #define REPORT_BUGS_TO ""
+ #define PKGVERSION ""
++#undef _
++#define _(X) (X)
+ #else
+ #include "config.h"
+ #endif
+@@ -490,6 +492,7 @@ char *	argv[];
+ #ifdef unix
+ 	(void) umask(umask(S_IWGRP | S_IWOTH) | (S_IWGRP | S_IWOTH));
+ #endif /* defined unix */
++#ifndef CROSS_ZIC
+ #if HAVE_GETTEXT
+ 	(void) setlocale(LC_ALL, "");
+ #ifdef TZ_DOMAINDIR
+@@ -497,6 +500,7 @@ char *	argv[];
+ #endif /* defined TEXTDOMAINDIR */
+ 	(void) textdomain(TZ_DOMAIN);
+ #endif /* HAVE_GETTEXT */
++#endif
+ 	progname = argv[0];
+ 	if (TYPE_BIT(zic_t) < 64) {
+ 		(void) fprintf(stderr, "%s: %s\n", progname,
diff --git a/toolchain/glibc/patches/2.15/120-use_host_cflags.patch b/toolchain/glibc/patches/2.15/120-use_host_cflags.patch
new file mode 100644
index 0000000..4c58fb4
--- /dev/null
+++ b/toolchain/glibc/patches/2.15/120-use_host_cflags.patch
@@ -0,0 +1,22 @@
+--- a/libc/sunrpc/Makefile
++++ b/libc/sunrpc/Makefile
+@@ -175,7 +175,7 @@ $(objpfx)rpcgen: $(addprefix $(objpfx),$
+ 	$(+link)
+ 
+ $(addprefix $(objpfx)cross-,$(rpcgen-objs)): $(objpfx)cross-%.o: %.c
+-	gcc $< -c -D_RPC_THREAD_SAFE_ -D_CROSS_RPCGEN_ \
++	gcc $< -c -D_RPC_THREAD_SAFE_ -D_CROSS_RPCGEN_ $(HOST_CFLAGS) \
+ 		$(OUTPUT_OPTION) $(compile-mkdep-flags)
+ 
+ $(objpfx)cross-rpcgen: $(addprefix $(objpfx)cross-,$(rpcgen-objs))
+--- a/libc/timezone/Makefile
++++ b/libc/timezone/Makefile
+@@ -182,7 +182,7 @@ $(objpfx)zic: $(addprefix $(objpfx), $(z
+ 
+ $(addprefix $(objpfx)cross-,$(zic-objs)): $(objpfx)cross-%.o: %.c
+ 	gcc $< -c $(OUTPUT_OPTION) $(CFLAGS-$*.c) $(CPPFLAGS-$*) \
+-		-DCROSS_ZIC $(compile-mkdep-flags)
++		-DCROSS_ZIC $(HOST_CFLAGS) $(compile-mkdep-flags)
+ 
+ $(objpfx)cross-zic: $(addprefix $(objpfx)cross-,$(zic-objs))
+ 	gcc $(addprefix $(objpfx)cross-,$(zic-objs)) -o $@
diff --git a/toolchain/glibc/patches/2.15/200-add-dl-search-paths.patch b/toolchain/glibc/patches/2.15/200-add-dl-search-paths.patch
new file mode 100644
index 0000000..70e7e60
--- /dev/null
+++ b/toolchain/glibc/patches/2.15/200-add-dl-search-paths.patch
@@ -0,0 +1,14 @@
+add /usr/lib to default search path for the dynamic linker
+
+--- a/libc/Makeconfig
++++ b/libc/Makeconfig
+@@ -539,6 +539,9 @@
+ default-rpath = $(libdir)
+ endif
+ 
++# Add /usr/lib to default search path for the dynamic linker
++user-defined-trusted-dirs := /usr/lib
++
+ ifndef link-extra-libs
+ link-extra-libs = $(LDLIBS-$(@F))
+ link-extra-libs-static = $(link-extra-libs)
diff --git a/toolchain/glibc/patches/2.19/100-fix_cross_rpcgen.patch b/toolchain/glibc/patches/2.19/100-fix_cross_rpcgen.patch
new file mode 100644
index 0000000..5c0d45b
--- /dev/null
+++ b/toolchain/glibc/patches/2.19/100-fix_cross_rpcgen.patch
@@ -0,0 +1,52 @@
+--- a/libc/sunrpc/rpc/types.h
++++ b/libc/sunrpc/rpc/types.h
+@@ -75,18 +75,23 @@ typedef unsigned long rpcport_t;
+ #endif
+ 
+ #ifndef __u_char_defined
+-typedef __u_char u_char;
+-typedef __u_short u_short;
+-typedef __u_int u_int;
+-typedef __u_long u_long;
+-typedef __quad_t quad_t;
+-typedef __u_quad_t u_quad_t;
+-typedef __fsid_t fsid_t;
++typedef unsigned char u_char;
++typedef unsigned short u_short;
++typedef unsigned int u_int;
++typedef unsigned long u_long;
++#if __WORDSIZE == 64
++typedef long int quad_t;
++typedef unsigned long int u_quad_t;
++#elif defined __GLIBC_HAVE_LONG_LONG
++typedef long long int quad_t;
++typedef unsigned long long int u_quad_t;
++#endif
++typedef u_quad_t fsid_t;
+ # define __u_char_defined
+ #endif
+-#ifndef __daddr_t_defined
+-typedef __daddr_t daddr_t;
+-typedef __caddr_t caddr_t;
++#if !defined(__daddr_t_defined) && defined(linux)
++typedef long int daddr_t;
++typedef char *caddr_t;
+ # define __daddr_t_defined
+ #endif
+ 
+--- a/libc/sunrpc/rpc_main.c
++++ b/libc/sunrpc/rpc_main.c
+@@ -958,9 +958,10 @@ mkfile_output (struct commandline *cmd)
+ 	abort ();
+       temp = rindex (cmd->infile, '.');
+       cp = stpcpy (mkfilename, "Makefile.");
+-      if (temp != NULL)
+-	*((char *) stpncpy (cp, cmd->infile, temp - cmd->infile)) = '\0';
+-      else
++      if (temp != NULL) {
++        strncpy(cp, cmd->infile, temp - cmd->infile);
++        cp[temp - cmd->infile - 1] = 0;
++      } else
+ 	stpcpy (cp, cmd->infile);
+ 
+     }
diff --git a/toolchain/glibc/patches/2.19/200-add-dl-search-paths.patch b/toolchain/glibc/patches/2.19/200-add-dl-search-paths.patch
new file mode 100644
index 0000000..fa192ca
--- /dev/null
+++ b/toolchain/glibc/patches/2.19/200-add-dl-search-paths.patch
@@ -0,0 +1,14 @@
+add /usr/lib to default search path for the dynamic linker
+
+--- a/libc/Makeconfig
++++ b/libc/Makeconfig
+@@ -501,6 +501,9 @@ else
+ default-rpath = $(libdir)
+ endif
+ 
++# Add /usr/lib to default search path for the dynamic linker
++user-defined-trusted-dirs := /usr/lib
++
+ ifndef link-extra-libs
+ link-extra-libs = $(LDLIBS-$(@F))
+ link-extra-libs-static = $(link-extra-libs)
diff --git a/toolchain/glibc/patches/2.19/300-require-autoconf-2.69.patch b/toolchain/glibc/patches/2.19/300-require-autoconf-2.69.patch
new file mode 100644
index 0000000..623885c
--- /dev/null
+++ b/toolchain/glibc/patches/2.19/300-require-autoconf-2.69.patch
@@ -0,0 +1,13 @@
+Index: eglibc-2.19-r25243/libc/aclocal.m4
+===================================================================
+--- eglibc-2.19-r25243.orig/libc/aclocal.m4	2013-11-06 15:03:08.000000000 -0800
++++ eglibc-2.19-r25243/libc/aclocal.m4	2014-11-22 15:43:05.343256863 -0800
+@@ -1,7 +1,7 @@
+ dnl We require that everyone use exactly the same Autoconf version so that
+ dnl the internal functions defined and used by the main configure script
+ dnl match those expected by the fragments.
+-m4_define([GLIBC_AUTOCONF_VERSION], [2.68])
++m4_define([GLIBC_AUTOCONF_VERSION], [2.69])
+ m4_if(m4_defn([AC_AUTOCONF_VERSION]), GLIBC_AUTOCONF_VERSION, [],
+       [m4_fatal(m4_flatten(
+ Exactly version GLIBC_AUTOCONF_VERSION of Autoconf is required but you have
diff --git a/toolchain/glibc/patches/2.21/100-fix_cross_rpcgen.patch b/toolchain/glibc/patches/2.21/100-fix_cross_rpcgen.patch
new file mode 100644
index 0000000..6a5e537
--- /dev/null
+++ b/toolchain/glibc/patches/2.21/100-fix_cross_rpcgen.patch
@@ -0,0 +1,52 @@
+--- a/sunrpc/rpc/types.h
++++ b/sunrpc/rpc/types.h
+@@ -75,18 +75,23 @@ typedef unsigned long rpcport_t;
+ #endif
+ 
+ #ifndef __u_char_defined
+-typedef __u_char u_char;
+-typedef __u_short u_short;
+-typedef __u_int u_int;
+-typedef __u_long u_long;
+-typedef __quad_t quad_t;
+-typedef __u_quad_t u_quad_t;
+-typedef __fsid_t fsid_t;
++typedef unsigned char u_char;
++typedef unsigned short u_short;
++typedef unsigned int u_int;
++typedef unsigned long u_long;
++#if __WORDSIZE == 64
++typedef long int quad_t;
++typedef unsigned long int u_quad_t;
++#elif defined __GLIBC_HAVE_LONG_LONG
++typedef long long int quad_t;
++typedef unsigned long long int u_quad_t;
++#endif
++typedef u_quad_t fsid_t;
+ # define __u_char_defined
+ #endif
+-#ifndef __daddr_t_defined
+-typedef __daddr_t daddr_t;
+-typedef __caddr_t caddr_t;
++#if !defined(__daddr_t_defined) && defined(linux)
++typedef long int daddr_t;
++typedef char *caddr_t;
+ # define __daddr_t_defined
+ #endif
+ 
+--- a/sunrpc/rpc_main.c
++++ b/sunrpc/rpc_main.c
+@@ -958,9 +958,10 @@ mkfile_output (struct commandline *cmd)
+ 	abort ();
+       temp = rindex (cmd->infile, '.');
+       cp = stpcpy (mkfilename, "Makefile.");
+-      if (temp != NULL)
+-	*((char *) stpncpy (cp, cmd->infile, temp - cmd->infile)) = '\0';
+-      else
++      if (temp != NULL) {
++        strncpy(cp, cmd->infile, temp - cmd->infile);
++        cp[temp - cmd->infile - 1] = 0;
++      } else
+ 	stpcpy (cp, cmd->infile);
+ 
+     }
diff --git a/toolchain/glibc/patches/2.21/200-add-dl-search-paths.patch b/toolchain/glibc/patches/2.21/200-add-dl-search-paths.patch
new file mode 100644
index 0000000..a6200f7
--- /dev/null
+++ b/toolchain/glibc/patches/2.21/200-add-dl-search-paths.patch
@@ -0,0 +1,14 @@
+add /usr/lib to default search path for the dynamic linker
+
+--- a/Makeconfig
++++ b/Makeconfig
+@@ -501,6 +501,9 @@ else
+ default-rpath = $(libdir)
+ endif
+ 
++# Add /usr/lib to default search path for the dynamic linker
++user-defined-trusted-dirs := /usr/lib
++
+ ifndef link-extra-libs
+ link-extra-libs = $(LDLIBS-$(@F))
+ link-extra-libs-static = $(link-extra-libs)