16 files changed, 14933 insertions, 432 deletions
diff --git a/toolchain/binutils/Makefile.inc b/toolchain/binutils/Makefile.inc
index 4448a7b51..06b5d3105 100644
--- a/toolchain/binutils/Makefile.inc
+++ b/toolchain/binutils/Makefile.inc
@@ -7,8 +7,8 @@ ifeq ($(ADK_LINUX_AVR32),y)
 PKG_VERSION:=		2.21
 PKG_MD5SUM:=		c84c5acc9d266f1a7044b51c85a823f5
 else
-PKG_VERSION:=		2.22
-PKG_MD5SUM:=		ee0f10756c84979622b992a4a61ea3f5
+PKG_VERSION:=		2.23.2
+PKG_MD5SUM:=		4f8fa651e35ef262edc01d60fb45702e
 endif
 
 PKG_RELEASE:=		1
diff --git a/toolchain/binutils/patches/2.22/musl-cross.patch b/toolchain/binutils/patches/2.22/musl-cross.patch
new file mode 100644
index 000000000..47af7bbb8
--- /dev/null
+++ b/toolchain/binutils/patches/2.22/musl-cross.patch
@@ -0,0 +1,81 @@
+diff -Nur binutils-2.22.orig/bfd/elf32-ppc.c binutils-2.22/bfd/elf32-ppc.c
+--- binutils-2.22.orig/bfd/elf32-ppc.c	2011-11-21 10:29:21.000000000 +0100
++++ binutils-2.22/bfd/elf32-ppc.c	2013-09-14 12:51:24.000000000 +0200
+@@ -2987,10 +2987,6 @@
+   edir->elf.needs_plt |= eind->elf.needs_plt;
+   edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed;
+ 
+-  /* If we were called to copy over info for a weak sym, that's all.  */
+-  if (eind->elf.root.type != bfd_link_hash_indirect)
+-    return;
+-
+   if (eind->dyn_relocs != NULL)
+     {
+       if (edir->dyn_relocs != NULL)
+@@ -3022,6 +3018,16 @@
+       eind->dyn_relocs = NULL;
+     }
+ 
++  /* If we were called to copy over info for a weak sym, that's all.
++     You might think dyn_relocs need not be copied over;  After all,
++     both syms will be dynamic or both non-dynamic so we're just
++     moving reloc accounting around.  However, ELIMINATE_COPY_RELOCS 
++     code in ppc_elf_adjust_dynamic_symbol needs to check for
++     dyn_relocs in read-only sections, and it does so on what is the
++     DIR sym here.  */
++  if (eind->elf.root.type != bfd_link_hash_indirect)
++    return;
++
+   /* Copy over the GOT refcount entries that we may have already seen to
+      the symbol which just became indirect.  */
+   edir->elf.got.refcount += eind->elf.got.refcount;
+diff -Nur binutils-2.22.orig/bfd/elf64-ppc.c binutils-2.22/bfd/elf64-ppc.c
+--- binutils-2.22.orig/bfd/elf64-ppc.c	2011-11-21 10:29:24.000000000 +0100
++++ binutils-2.22/bfd/elf64-ppc.c	2013-09-14 12:51:24.000000000 +0200
+@@ -4435,10 +4435,6 @@
+   edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak;
+   edir->elf.needs_plt |= eind->elf.needs_plt;
+ 
+-  /* If we were called to copy over info for a weak sym, that's all.  */
+-  if (eind->elf.root.type != bfd_link_hash_indirect)
+-    return;
+-
+   /* Copy over any dynamic relocs we may have on the indirect sym.  */
+   if (eind->dyn_relocs != NULL)
+     {
+@@ -4471,6 +4467,16 @@
+       eind->dyn_relocs = NULL;
+     }
+ 
++  /* If we were called to copy over info for a weak sym, that's all.
++     You might think dyn_relocs need not be copied over;  After all,
++     both syms will be dynamic or both non-dynamic so we're just
++     moving reloc accounting around.  However, ELIMINATE_COPY_RELOCS 
++     code in ppc64_elf_adjust_dynamic_symbol needs to check for
++     dyn_relocs in read-only sections, and it does so on what is the
++     DIR sym here.  */
++  if (eind->elf.root.type != bfd_link_hash_indirect)
++    return;
++
+   /* Copy over got entries that we may have already seen to the
+      symbol which just became indirect.  */
+   if (eind->elf.got.glist != NULL)
+diff -Nur binutils-2.22.orig/config.sub binutils-2.22/config.sub
+--- binutils-2.22.orig/config.sub	2011-06-06 12:36:06.000000000 +0200
++++ binutils-2.22/config.sub	2013-09-14 12:51:24.000000000 +0200
+@@ -125,6 +125,7 @@
+ maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+ case $maybe_os in
+   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
++  linux-musl* | \
+   linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+   knetbsd*-gnu* | netbsd*-gnu* | \
+   kopensolaris*-gnu* | \
+@@ -1335,6 +1336,7 @@
+ 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+ 	      | -mingw32* | -linux-gnu* | -linux-android* \
+ 	      | -linux-newlib* | -linux-uclibc* \
++	      | -linux-musl* \
+ 	      | -uxpv* | -beos* | -mpeix* | -udk* \
+ 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+ 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
diff --git a/toolchain/binutils/patches/2.22/musl.patch b/toolchain/binutils/patches/2.22/musl.patch
deleted file mode 100644
index 4ea53c18f..000000000
--- a/toolchain/binutils/patches/2.22/musl.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-diff -Nur binutils-2.22.orig/config.sub binutils-2.22/config.sub
---- binutils-2.22.orig/config.sub	2011-06-06 12:36:06.000000000 +0200
-+++ binutils-2.22/config.sub	2013-08-11 14:40:22.308115171 +0200
-@@ -126,6 +126,7 @@
- case $maybe_os in
-   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
-   linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
-+  linux-musl* | \
-   knetbsd*-gnu* | netbsd*-gnu* | \
-   kopensolaris*-gnu* | \
-   storm-chaos* | os2-emx* | rtmk-nova*)
-@@ -1334,7 +1335,7 @@
- 	      | -chorusos* | -chorusrdb* | -cegcc* \
- 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
- 	      | -mingw32* | -linux-gnu* | -linux-android* \
--	      | -linux-newlib* | -linux-uclibc* \
-+	      | -linux-newlib* | -linux-uclibc* | -linux-musl* \
- 	      | -uxpv* | -beos* | -mpeix* | -udk* \
- 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
- 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
diff --git a/toolchain/binutils/patches/2.23.2/musl-cross.patch b/toolchain/binutils/patches/2.23.2/musl-cross.patch
new file mode 100644
index 000000000..c1a4fbfec
--- /dev/null
+++ b/toolchain/binutils/patches/2.23.2/musl-cross.patch
@@ -0,0 +1,19 @@
+diff -Nur binutils-2.23.2.orig/config.sub binutils-2.23.2/config.sub
+--- binutils-2.23.2.orig/config.sub	2012-04-25 17:53:25.000000000 +0200
++++ binutils-2.23.2/config.sub	2013-09-15 15:10:00.000000000 +0200
+@@ -123,6 +123,7 @@
+ maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+ case $maybe_os in
+   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
++  linux-musl* | \
+   linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+   knetbsd*-gnu* | netbsd*-gnu* | \
+   kopensolaris*-gnu* | \
+@@ -1361,6 +1362,7 @@
+ 	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+ 	      | -mingw32* | -linux-gnu* | -linux-android* \
+ 	      | -linux-newlib* | -linux-uclibc* \
++	      | -linux-musl* \
+ 	      | -uxpv* | -beos* | -mpeix* | -udk* \
+ 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+ 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
diff --git a/toolchain/eglibc/Makefile.inc b/toolchain/eglibc/Makefile.inc
index 7fc25305c..e2aec51aa 100644
--- a/toolchain/eglibc/Makefile.inc
+++ b/toolchain/eglibc/Makefile.inc
@@ -2,9 +2,9 @@
 # material, please see the LICENCE file in the top-level directory.
 
 PKG_NAME:=		eglibc
-PKG_VERSION:=		2.17
+PKG_VERSION:=		2.18
 PKG_RELEASE:=		1
-PKG_MD5SUM:=		7bbee592be7d7fcacdc9dda931db9bec
+PKG_MD5SUM:=		2e4aad1b953daa997debe48fe10862cc
 PKG_SITES:=		http://openadk.org/distfiles/
 EGLIBC_CONFOPTS:=	--build=$(GNU_HOST_NAME) \
 			--without-cvs \
diff --git a/toolchain/eglibc/patches/eglibc-cross.patch b/toolchain/eglibc/patches/eglibc-cross.patch
index b77801f37..893345f2b 100644
--- a/toolchain/eglibc/patches/eglibc-cross.patch
+++ b/toolchain/eglibc/patches/eglibc-cross.patch
@@ -1,6 +1,6 @@
-diff -Nur eglibc-2.16.orig/libc/sunrpc/rpc/types.h eglibc-2.16/libc/sunrpc/rpc/types.h
---- eglibc-2.16.orig/libc/sunrpc/rpc/types.h	2012-07-31 09:00:24.000000000 +0200
-+++ eglibc-2.16/libc/sunrpc/rpc/types.h	2012-07-31 10:08:35.000000000 +0200
+diff -Nur eglibc-2.18.orig/libc/sunrpc/rpc/types.h eglibc-2.18/libc/sunrpc/rpc/types.h
+--- eglibc-2.18.orig/libc/sunrpc/rpc/types.h	2013-09-13 10:20:22.000000000 +0200
++++ eglibc-2.18/libc/sunrpc/rpc/types.h	2013-09-13 10:49:06.000000000 +0200
 @@ -69,19 +69,25 @@
  #include <sys/types.h>
  #endif
@@ -39,9 +39,9 @@ diff -Nur eglibc-2.16.orig/libc/sunrpc/rpc/types.h eglibc-2.16/libc/sunrpc/rpc/t
  # define __daddr_t_defined
  #endif
  
-diff -Nur eglibc-2.16.orig/libc/sunrpc/rpc_main.c eglibc-2.16/libc/sunrpc/rpc_main.c
---- eglibc-2.16.orig/libc/sunrpc/rpc_main.c	2012-07-31 09:00:24.000000000 +0200
-+++ eglibc-2.16/libc/sunrpc/rpc_main.c	2012-07-31 09:22:22.000000000 +0200
+diff -Nur eglibc-2.18.orig/libc/sunrpc/rpc_main.c eglibc-2.18/libc/sunrpc/rpc_main.c
+--- eglibc-2.18.orig/libc/sunrpc/rpc_main.c	2013-09-13 10:20:22.000000000 +0200
++++ eglibc-2.18/libc/sunrpc/rpc_main.c	2013-09-13 10:49:34.000000000 +0200
 @@ -38,7 +38,11 @@
  #include <stdio.h>
  #include <string.h>
@@ -51,9 +51,9 @@ diff -Nur eglibc-2.16.orig/libc/sunrpc/rpc_main.c eglibc-2.16/libc/sunrpc/rpc_ma
 +#else
  #include <libintl.h>
 +#endif
+ #include <locale.h>
  #include <ctype.h>
  #include <sys/types.h>
- #include <sys/param.h>
 @@ -958,10 +962,12 @@
  	abort ();
        temp = rindex (cmd->infile, '.');
@@ -70,9 +70,9 @@ diff -Nur eglibc-2.16.orig/libc/sunrpc/rpc_main.c eglibc-2.16/libc/sunrpc/rpc_ma
  
      }
    else
-diff -Nur eglibc-2.16.orig/libc/sunrpc/rpc_scan.c eglibc-2.16/libc/sunrpc/rpc_scan.c
---- eglibc-2.16.orig/libc/sunrpc/rpc_scan.c	2012-07-31 09:00:24.000000000 +0200
-+++ eglibc-2.16/libc/sunrpc/rpc_scan.c	2012-07-31 09:22:22.000000000 +0200
+diff -Nur eglibc-2.18.orig/libc/sunrpc/rpc_scan.c eglibc-2.18/libc/sunrpc/rpc_scan.c
+--- eglibc-2.18.orig/libc/sunrpc/rpc_scan.c	2013-09-13 10:20:22.000000000 +0200
++++ eglibc-2.18/libc/sunrpc/rpc_scan.c	2013-09-13 10:49:06.000000000 +0200
 @@ -37,7 +37,11 @@
  #include <stdio.h>
  #include <ctype.h>
diff --git a/toolchain/gcc/Makefile b/toolchain/gcc/Makefile
index b2ae0ea42..2bc954347 100644
--- a/toolchain/gcc/Makefile
+++ b/toolchain/gcc/Makefile
@@ -62,7 +62,7 @@ GCC_CONFOPTS+=		--enable-tls
 endif
 
 ifeq ($(ARCH),powerpc)
-GCC_CONFOPTS+=		--disable-target-optspace
+GCC_CONFOPTS+=		--disable-target-optspace --with-long-double-64 --enable-secureplt
 else
 GCC_CONFOPTS+=		--enable-target-optspace
 endif
@@ -149,8 +149,6 @@ $(GCC_BUILD_DIR_INITIAL)/.compiled: $(GCC_BUILD_DIR_INITIAL)/.configured
 
 $(WRKBUILD)/.configured: $(GCC_BUILD_DIR_INITIAL)/.compiled
 	PATH='$(TARGET_PATH)' $(MAKE) -C $(GCC_BUILD_DIR_INITIAL) install-gcc install-target-libgcc
-	# -lgcc_eh workaround
-	(cd $(STAGING_HOST_DIR)/lib/gcc/$(REAL_GNU_TARGET_NAME)/$(PKG_VERSION) && ln -sf libgcc.a libgcc_eh.a)
 	touch $@
 
 $(GCC_BUILD_DIR_FINAL)/.configured:
diff --git a/toolchain/gcc/patches/4.7.3/musl-cross.patch b/toolchain/gcc/patches/4.7.3/musl-cross.patch
new file mode 100644
index 000000000..bbba746b0
--- /dev/null
+++ b/toolchain/gcc/patches/4.7.3/musl-cross.patch
@@ -0,0 +1,861 @@
+diff -Nur gcc-4.7.3.orig/config.sub gcc-4.7.3/config.sub
+--- gcc-4.7.3.orig/config.sub	2012-08-06 16:34:27.000000000 +0200
++++ gcc-4.7.3/config.sub	2013-09-16 15:39:42.000000000 +0200
+@@ -4,7 +4,7 @@
+ #   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ #   2011 Free Software Foundation, Inc.
+ 
+-timestamp='2011-10-29'
++timestamp='2011-03-23'
+ 
+ # This file is (in principle) common to ALL GNU software.
+ # The presence of a machine in this file suggests that SOME GNU software
+@@ -125,6 +125,7 @@
+ maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+ case $maybe_os in
+   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
++  linux-musl* | \
+   linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+   knetbsd*-gnu* | netbsd*-gnu* | \
+   kopensolaris*-gnu* | \
+@@ -251,17 +252,13 @@
+ 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+ 	| am33_2.0 \
+ 	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
+-        | be32 | be64 \
+ 	| bfin \
+ 	| c4x | clipper \
+ 	| d10v | d30v | dlx | dsp16xx \
+-	| epiphany \
+ 	| fido | fr30 | frv \
+ 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+-	| hexagon \
+ 	| i370 | i860 | i960 | ia64 \
+ 	| ip2k | iq2000 \
+-	| le32 | le64 \
+ 	| lm32 \
+ 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
+ 	| maxq | mb | microblaze | mcore | mep | metag \
+@@ -295,7 +292,7 @@
+ 	| pdp10 | pdp11 | pj | pjl \
+ 	| powerpc | powerpc64 | powerpc64le | powerpcle \
+ 	| pyramid \
+-	| rl78 | rx \
++	| rx \
+ 	| score \
+ 	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+ 	| sh64 | sh64le \
+@@ -304,7 +301,7 @@
+ 	| spu \
+ 	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+ 	| ubicom32 \
+-	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
++	| v850 | v850e \
+ 	| we32k \
+ 	| x86 | xc16x | xstormy16 | xtensa \
+ 	| z8k | z80)
+@@ -361,7 +358,6 @@
+ 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+ 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+ 	| avr-* | avr32-* \
+-	| be32-* | be64-* \
+ 	| bfin-* | bs2000-* \
+ 	| c[123]* | c30-* | [cjt]90-* | c4x-* \
+ 	| clipper-* | craynv-* | cydra-* \
+@@ -370,10 +366,8 @@
+ 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+ 	| h8300-* | h8500-* \
+ 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+-	| hexagon-* \
+ 	| i*86-* | i860-* | i960-* | ia64-* \
+ 	| ip2k-* | iq2000-* \
+-	| le32-* | le64-* \
+ 	| lm32-* \
+ 	| m32c-* | m32r-* | m32rle-* \
+ 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+@@ -407,7 +401,7 @@
+ 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+ 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+ 	| pyramid-* \
+-	| rl78-* | romp-* | rs6000-* | rx-* \
++	| romp-* | rs6000-* | rx-* \
+ 	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+ 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+ 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+@@ -415,11 +409,10 @@
+ 	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+ 	| tahoe-* \
+ 	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+-	| tile*-* \
++	| tile-* | tilegx-* \
+ 	| tron-* \
+ 	| ubicom32-* \
+-	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+-	| vax-* \
++	| v850-* | v850e-* | vax-* \
+ 	| we32k-* \
+ 	| x86-* | x86_64-* | xc16x-* | xps100-* \
+ 	| xstormy16-* | xtensa*-* \
+@@ -820,10 +813,6 @@
+ 		basic_machine=i370-ibm
+ 		os=-mvs
+ 		;;
+-	nacl)
+-		basic_machine=le32-unknown
+-		os=-nacl
+-		;;
+ 	ncr3000)
+ 		basic_machine=i486-ncr
+ 		os=-sysv4
+@@ -1132,8 +1121,13 @@
+ 		basic_machine=t90-cray
+ 		os=-unicos
+ 		;;
++	# This must be matched before tile*.
++	tilegx*)
++		basic_machine=tilegx-unknown
++		os=-linux-gnu
++		;;
+ 	tile*)
+-		basic_machine=$basic_machine-unknown
++		basic_machine=tile-unknown
+ 		os=-linux-gnu
+ 		;;
+ 	tx39)
+@@ -1346,6 +1340,7 @@
+ 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+ 	      | -mingw32* | -linux-gnu* | -linux-android* \
+ 	      | -linux-newlib* | -linux-uclibc* \
++	      | -linux-musl* \
+ 	      | -uxpv* | -beos* | -mpeix* | -udk* \
+ 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+ 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+diff -Nur gcc-4.7.3.orig/fixincludes/mkfixinc.sh gcc-4.7.3/fixincludes/mkfixinc.sh
+--- gcc-4.7.3.orig/fixincludes/mkfixinc.sh	2011-09-22 16:00:17.000000000 +0200
++++ gcc-4.7.3/fixincludes/mkfixinc.sh	2013-09-16 15:39:42.000000000 +0200
+@@ -20,7 +20,8 @@
+     powerpc-*-eabi*    | \
+     powerpc-*-rtems*   | \
+     powerpcle-*-eabisim* | \
+-    powerpcle-*-eabi* )
++    powerpcle-*-eabi* | \
++    *-musl* )
+ 	#  IF there is no include fixing,
+ 	#  THEN create a no-op fixer and exit
+ 	(echo "#! /bin/sh" ; echo "exit 0" ) > ${target}
+diff -Nur gcc-4.7.3.orig/gcc/config/arm/linux-eabi.h gcc-4.7.3/gcc/config/arm/linux-eabi.h
+--- gcc-4.7.3.orig/gcc/config/arm/linux-eabi.h	2011-11-02 16:03:19.000000000 +0100
++++ gcc-4.7.3/gcc/config/arm/linux-eabi.h	2013-09-16 15:39:42.000000000 +0200
+@@ -64,6 +64,23 @@
+ #undef  GLIBC_DYNAMIC_LINKER
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
+ 
++/* For ARM musl currently supports two dynamic linkers:
++   - ld-musl-arm.so.1 - for the EABI-derived soft-float ABI
++   - ld-musl-armhf.so.1 - for the EABI-derived hard-float ABI.
++   musl does not support the legacy OABI (i.e. broken) mode.
++   All the dynamic linkers live in /lib.
++   We default to soft-float, but this can be overridden by changing both
++   MUSL_DYNAMIC_LINKER_DEFAULT and TARGET_DEFAULT_FLOAT_ABI.  */
++#undef  MUSL_DYNAMIC_LINKER
++#define MUSL_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-musl-arm.so.1"
++#define MUSL_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-musl-armhf.so.1"
++#define MUSL_DYNAMIC_LINKER_DEFAULT MUSL_DYNAMIC_LINKER_SOFT_FLOAT
++
++#define MUSL_DYNAMIC_LINKER \
++  "%{mfloat-abi=hard:" MUSL_DYNAMIC_LINKER_HARD_FLOAT "} \
++   %{mfloat-abi=soft*:" MUSL_DYNAMIC_LINKER_SOFT_FLOAT "} \
++   %{!mfloat-abi=*:" MUSL_DYNAMIC_LINKER_DEFAULT "}"
++
+ /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
+    use the GNU/Linux version, not the generic BPABI version.  */
+ #undef  LINK_SPEC
+diff -Nur gcc-4.7.3.orig/gcc/config/i386/linux64.h gcc-4.7.3/gcc/config/i386/linux64.h
+--- gcc-4.7.3.orig/gcc/config/i386/linux64.h	2011-07-07 17:38:34.000000000 +0200
++++ gcc-4.7.3/gcc/config/i386/linux64.h	2013-09-16 15:39:42.000000000 +0200
+@@ -31,3 +31,7 @@
+ #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
+ #define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
++
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1"
++#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-x32.so.1"
+diff -Nur gcc-4.7.3.orig/gcc/config/i386/linux.h gcc-4.7.3/gcc/config/i386/linux.h
+--- gcc-4.7.3.orig/gcc/config/i386/linux.h	2011-06-03 20:30:39.000000000 +0200
++++ gcc-4.7.3/gcc/config/i386/linux.h	2013-09-16 15:39:42.000000000 +0200
+@@ -22,3 +22,4 @@
+ 
+ #define GNU_USER_LINK_EMULATION "elf_i386"
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
+diff -Nur gcc-4.7.3.orig/gcc/config/linux.h gcc-4.7.3/gcc/config/linux.h
+--- gcc-4.7.3.orig/gcc/config/linux.h	2012-08-14 15:59:04.000000000 +0200
++++ gcc-4.7.3/gcc/config/linux.h	2013-09-16 15:39:42.000000000 +0200
+@@ -33,10 +33,12 @@
+ #define OPTION_GLIBC  (DEFAULT_LIBC == LIBC_GLIBC)
+ #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
+ #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
++#define OPTION_MUSL   (DEFAULT_LIBC == LIBC_MUSL)
+ #else
+ #define OPTION_GLIBC  (linux_libc == LIBC_GLIBC)
+ #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
+ #define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
++#define OPTION_MUSL   (linux_libc == LIBC_MUSL)
+ #endif
+ 
+ #define GNU_USER_TARGET_OS_CPP_BUILTINS()			\
+@@ -54,18 +56,21 @@
+    uClibc or Bionic is the default C library and whether
+    -muclibc or -mglibc or -mbionic has been passed to change the default.  */
+ 
+-#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LD1, LD2, LD3)	\
+-  "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:" LD1 "}}"
++#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LIBC4, LD1, LD2, LD3, LD4)	\
++  "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:%{" LIBC4 ":" LD4 ";:" LD1 "}}}"
+ 
+ #if DEFAULT_LIBC == LIBC_GLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
+-  CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", G, U, B)
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++  CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", "mmusl", G, U, B, M)
+ #elif DEFAULT_LIBC == LIBC_UCLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
+-  CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", U, G, B)
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++  CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", "mmusl", U, G, B, M)
+ #elif DEFAULT_LIBC == LIBC_BIONIC
+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
+-  CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", B, G, U)
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++  CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", "mmusl", B, G, U, M)
++#elif DEFAULT_LIBC == LIBC_MUSL
++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
++  CHOOSE_DYNAMIC_LINKER1 ("mmusl", "mglibc", "muclibc", "mbionic", M, G, U, B)
+ #else
+ #error "Unsupported DEFAULT_LIBC"
+ #endif /* DEFAULT_LIBC */
+@@ -85,21 +90,21 @@
+ 
+ #define GNU_USER_DYNAMIC_LINKER						\
+   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,	\
+-			 BIONIC_DYNAMIC_LINKER)
++			 BIONIC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
+ #define GNU_USER_DYNAMIC_LINKER32					\
+   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \
+-			 BIONIC_DYNAMIC_LINKER32)
++			 BIONIC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
+ #define GNU_USER_DYNAMIC_LINKER64					\
+   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \
+-			 BIONIC_DYNAMIC_LINKER64)
++			 BIONIC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
+ #define GNU_USER_DYNAMIC_LINKERX32					\
+   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERX32, UCLIBC_DYNAMIC_LINKERX32, \
+-			 BIONIC_DYNAMIC_LINKERX32)
++			 BIONIC_DYNAMIC_LINKERX32, MUSL_DYNAMIC_LINKERX32)
+ 
+ /* Determine whether the entire c99 runtime
+    is present in the runtime library.  */
+ #undef TARGET_C99_FUNCTIONS
+-#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
++#define TARGET_C99_FUNCTIONS (OPTION_GLIBC || OPTION_MUSL)
+ 
+ /* Whether we have sincos that follows the GNU extension.  */
+ #undef TARGET_HAS_SINCOS
+@@ -108,3 +113,74 @@
+ /* Whether we have Bionic libc runtime */
+ #undef TARGET_HAS_BIONIC
+ #define TARGET_HAS_BIONIC (OPTION_BIONIC)
++
++/* musl avoids problematic includes by rearranging the include directories.
++ * Unfortunately, this is mostly duplicated from cppdefault.c */
++#if DEFAULT_LIBC == LIBC_MUSL
++#define INCLUDE_DEFAULTS_MUSL_GPP			\
++    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1,		\
++      GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },		\
++    { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1,		\
++      GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 },		\
++    { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1,	\
++      GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
++
++#ifdef LOCAL_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_LOCAL			\
++    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },		\
++    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
++#else
++#define INCLUDE_DEFAULTS_MUSL_LOCAL
++#endif
++
++#ifdef PREFIX_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_PREFIX			\
++    { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0},
++#else
++#define INCLUDE_DEFAULTS_MUSL_PREFIX
++#endif
++
++#ifdef CROSS_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_CROSS			\
++    { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0},
++#else
++#define INCLUDE_DEFAULTS_MUSL_CROSS
++#endif
++
++#ifdef TOOL_INCLUDE_DIR
++#define INCLUDE_DEFAULTS_MUSL_TOOL			\
++    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0},
++#else
++#define INCLUDE_DEFAULTS_MUSL_TOOL
++#endif
++
++#ifdef NATIVE_SYSTEM_HEADER_DIR
++#define INCLUDE_DEFAULTS_MUSL_NATIVE			\
++    { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 },	\
++    { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
++#else
++#define INCLUDE_DEFAULTS_MUSL_NATIVE
++#endif
++
++#if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
++# undef INCLUDE_DEFAULTS_MUSL_LOCAL
++# define INCLUDE_DEFAULTS_MUSL_LOCAL
++# undef INCLUDE_DEFAULTS_MUSL_NATIVE
++# define INCLUDE_DEFAULTS_MUSL_NATIVE
++#else
++# undef INCLUDE_DEFAULTS_MUSL_CROSS
++# define INCLUDE_DEFAULTS_MUSL_CROSS
++#endif
++
++#undef INCLUDE_DEFAULTS
++#define INCLUDE_DEFAULTS				\
++  {							\
++    INCLUDE_DEFAULTS_MUSL_GPP				\
++    INCLUDE_DEFAULTS_MUSL_PREFIX			\
++    INCLUDE_DEFAULTS_MUSL_CROSS				\
++    INCLUDE_DEFAULTS_MUSL_TOOL				\
++    INCLUDE_DEFAULTS_MUSL_NATIVE			\
++    { GCC_INCLUDE_DIR, "GCC", 0, 1, 0, 0 },		\
++    { 0, 0, 0, 0, 0, 0 }				\
++  }
++#endif
+diff -Nur gcc-4.7.3.orig/gcc/config/linux.opt gcc-4.7.3/gcc/config/linux.opt
+--- gcc-4.7.3.orig/gcc/config/linux.opt	2010-09-29 16:51:52.000000000 +0200
++++ gcc-4.7.3/gcc/config/linux.opt	2013-09-16 15:39:42.000000000 +0200
+@@ -30,3 +30,7 @@
+ muclibc
+ Target Report RejectNegative Var(linux_libc,LIBC_UCLIBC) Negative(mbionic)
+ Use uClibc C library
++
++mmusl
++Target Report RejectNegative Var(linux_libc,LIBC_MUSL) Negative(mglibc)
++Use musl C library
+diff -Nur gcc-4.7.3.orig/gcc/config/mips/linux.h gcc-4.7.3/gcc/config/mips/linux.h
+--- gcc-4.7.3.orig/gcc/config/mips/linux.h	2011-07-19 20:00:27.000000000 +0200
++++ gcc-4.7.3/gcc/config/mips/linux.h	2013-09-16 15:39:43.000000000 +0200
+@@ -19,3 +19,5 @@
+ <http://www.gnu.org/licenses/>.  */
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
++
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips.so.1"
+diff -Nur gcc-4.7.3.orig/gcc/config/rs6000/linux64.h gcc-4.7.3/gcc/config/rs6000/linux64.h
+--- gcc-4.7.3.orig/gcc/config/rs6000/linux64.h	2012-03-12 17:16:51.000000000 +0100
++++ gcc-4.7.3/gcc/config/rs6000/linux64.h	2013-09-16 15:39:43.000000000 +0200
+@@ -362,17 +362,21 @@
+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld64.so.1"
+ #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
+ #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-powerpc.so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-powerpc64.so.1"
+ #if DEFAULT_LIBC == LIBC_UCLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
+ #elif DEFAULT_LIBC == LIBC_GLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}"
++#elif DEFAULT_LIBC == LIBC_MUSL
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}"
+ #else
+ #error "Unsupported DEFAULT_LIBC"
+ #endif
+ #define GNU_USER_DYNAMIC_LINKER32 \
+-  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32)
++  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
+ #define GNU_USER_DYNAMIC_LINKER64 \
+-  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
++  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
+ 
+ 
+ #define LINK_OS_LINUX_SPEC32 "-m elf32ppclinux %{!shared: %{!static: \
+diff -Nur gcc-4.7.3.orig/gcc/config/rs6000/secureplt.h gcc-4.7.3/gcc/config/rs6000/secureplt.h
+--- gcc-4.7.3.orig/gcc/config/rs6000/secureplt.h	2007-08-02 12:49:31.000000000 +0200
++++ gcc-4.7.3/gcc/config/rs6000/secureplt.h	2013-09-16 15:39:43.000000000 +0200
+@@ -18,3 +18,4 @@
+ <http://www.gnu.org/licenses/>.  */
+ 
+ #define CC1_SECURE_PLT_DEFAULT_SPEC "-msecure-plt"
++#define LINK_SECURE_PLT_DEFAULT_SPEC "--secure-plt"
+diff -Nur gcc-4.7.3.orig/gcc/config/rs6000/sysv4.h gcc-4.7.3/gcc/config/rs6000/sysv4.h
+--- gcc-4.7.3.orig/gcc/config/rs6000/sysv4.h	2012-04-30 19:39:01.000000000 +0200
++++ gcc-4.7.3/gcc/config/rs6000/sysv4.h	2013-09-16 15:39:43.000000000 +0200
+@@ -566,6 +566,9 @@
+ #ifndef CC1_SECURE_PLT_DEFAULT_SPEC
+ #define CC1_SECURE_PLT_DEFAULT_SPEC ""
+ #endif
++#ifndef LINK_SECURE_PLT_DEFAULT_SPEC
++#define LINK_SECURE_PLT_DEFAULT_SPEC ""
++#endif
+ 
+ /* Pass -G xxx to the compiler and set correct endian mode.  */
+ #define	CC1_SPEC "%{G*} %(cc1_cpu) \
+@@ -626,7 +629,8 @@
+ %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
+ %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
+     %{mcall-i960-old: --oformat elf32-powerpcle} \
+-  }}}}"
++  }}}} \
++%{!mbss-plt: %{!msecure-plt: %(link_secure_plt_default)}}"
+ 
+ /* Any specific OS flags.  */
+ #define LINK_OS_SPEC "\
+@@ -804,15 +808,18 @@
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+ #define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-powerpc.so.1"
+ #if DEFAULT_LIBC == LIBC_UCLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
++#elif DEFAULT_LIBC == LIBC_MUSL
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}"
+ #elif !defined (DEFAULT_LIBC) || DEFAULT_LIBC == LIBC_GLIBC
+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}"
+ #else
+ #error "Unsupported DEFAULT_LIBC"
+ #endif
+ #define GNU_USER_DYNAMIC_LINKER \
+-  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER)
++  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
+ 
+ #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
+   %{rdynamic:-export-dynamic} \
+@@ -938,6 +945,7 @@
+   { "cc1_endian_little",	CC1_ENDIAN_LITTLE_SPEC },		\
+   { "cc1_endian_default",	CC1_ENDIAN_DEFAULT_SPEC },		\
+   { "cc1_secure_plt_default",	CC1_SECURE_PLT_DEFAULT_SPEC },		\
++  { "link_secure_plt_default",	LINK_SECURE_PLT_DEFAULT_SPEC },		\
+   { "cpp_os_ads",		CPP_OS_ADS_SPEC },			\
+   { "cpp_os_yellowknife",	CPP_OS_YELLOWKNIFE_SPEC },		\
+   { "cpp_os_mvme",		CPP_OS_MVME_SPEC },			\
+diff -Nur gcc-4.7.3.orig/gcc/config.gcc gcc-4.7.3/gcc/config.gcc
+--- gcc-4.7.3.orig/gcc/config.gcc	2013-03-06 23:54:11.000000000 +0100
++++ gcc-4.7.3/gcc/config.gcc	2013-09-16 15:39:43.000000000 +0200
+@@ -522,7 +522,7 @@
+ esac
+ 
+ # Common C libraries.
+-tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3"
++tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4"
+ 
+ # Common parts for widely ported systems.
+ case ${target} in
+@@ -625,6 +625,9 @@
+     *-*-*uclibc*)
+       tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
+       ;;
++    *-*-*musl*)
++      tm_defines="$tm_defines DEFAULT_LIBC=LIBC_MUSL"
++      ;;
+     *)
+       tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
+       ;;
+@@ -2092,6 +2095,10 @@
+ 	    powerpc*-*-linux*paired*)
+ 		tm_file="${tm_file} rs6000/750cl.h" ;;
+ 	esac
++        case ${target} in
++            *-linux*-musl*)
++                enable_secureplt=yes ;;
++        esac
+ 	if test x${enable_secureplt} = xyes; then
+ 		tm_file="rs6000/secureplt.h ${tm_file}"
+ 	fi
+diff -Nur gcc-4.7.3.orig/gcc/configure gcc-4.7.3/gcc/configure
+--- gcc-4.7.3.orig/gcc/configure	2013-02-06 16:23:55.000000000 +0100
++++ gcc-4.7.3/gcc/configure	2013-09-16 15:39:43.000000000 +0200
+@@ -26815,7 +26815,8 @@
+          gcc_cv_libc_provides_ssp=yes
+       fi
+ 	;;
+-       *-*-gnu*)
++       *-*-gnu* | \
++       *-linux-musl*)
+ 	 # Avoid complicated tests (see
+ 	 # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
+ 	 # simply assert that glibc does provide this, which is true for all
+@@ -26902,6 +26903,9 @@
+       gcc_cv_target_dl_iterate_phdr=no
+     fi
+     ;;
++  *-linux-musl*)
++    gcc_cv_target_dl_iterate_phdr=yes
++    ;;
+ esac
+ 
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+diff -Nur gcc-4.7.3.orig/gcc/configure.ac gcc-4.7.3/gcc/configure.ac
+--- gcc-4.7.3.orig/gcc/configure.ac	2013-02-06 16:23:55.000000000 +0100
++++ gcc-4.7.3/gcc/configure.ac	2013-09-16 15:39:43.000000000 +0200
+@@ -4692,7 +4692,8 @@
+          gcc_cv_libc_provides_ssp=yes
+       fi]
+ 	;;
+-       *-*-gnu*)
++       *-*-gnu* | \
++       *-linux-musl*)
+ 	 # Avoid complicated tests (see
+ 	 # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
+ 	 # simply assert that glibc does provide this, which is true for all
+@@ -4762,6 +4763,9 @@
+       gcc_cv_target_dl_iterate_phdr=no
+     fi
+     ;;
++  *-linux-musl*)
++    gcc_cv_target_dl_iterate_phdr=yes
++    ;;
+ esac
+ GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+diff -Nur gcc-4.7.3.orig/gcc/ginclude/stddef.h gcc-4.7.3/gcc/ginclude/stddef.h
+--- gcc-4.7.3.orig/gcc/ginclude/stddef.h	2012-02-12 02:06:04.000000000 +0100
++++ gcc-4.7.3/gcc/ginclude/stddef.h	2013-09-16 15:39:43.000000000 +0200
+@@ -184,6 +184,7 @@
+ #ifndef _GCC_SIZE_T
+ #ifndef _SIZET_
+ #ifndef __size_t
++#ifndef __DEFINED_size_t /* musl */
+ #define __size_t__	/* BeOS */
+ #define __SIZE_T__	/* Cray Unicos/Mk */
+ #define _SIZE_T
+@@ -200,6 +201,7 @@
+ #define ___int_size_t_h
+ #define _GCC_SIZE_T
+ #define _SIZET_
++#define __DEFINED_size_t /* musl */
+ #if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \
+   || defined(__FreeBSD_kernel__)
+ /* __size_t is a typedef on FreeBSD 5, must not trash it. */
+@@ -215,6 +217,7 @@
+ typedef long ssize_t;
+ #endif /* __BEOS__ */
+ #endif /* !(defined (__GNUG__) && defined (size_t)) */
++#endif /* __DEFINED_size_t */
+ #endif /* __size_t */
+ #endif /* _SIZET_ */
+ #endif /* _GCC_SIZE_T */
+diff -Nur gcc-4.7.3.orig/libgcc/unwind-dw2-fde-dip.c gcc-4.7.3/libgcc/unwind-dw2-fde-dip.c
+--- gcc-4.7.3.orig/libgcc/unwind-dw2-fde-dip.c	2012-10-06 23:55:06.000000000 +0200
++++ gcc-4.7.3/libgcc/unwind-dw2-fde-dip.c	2013-09-16 15:39:43.000000000 +0200
+@@ -47,28 +47,13 @@
+ #include "unwind-compat.h"
+ #include "gthr.h"
+ 
+-#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
+-    && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
+-	|| (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))
+-# define USE_PT_GNU_EH_FRAME
+-#endif
+-
+-#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
+-    && defined(__FreeBSD__) && __FreeBSD__ >= 7
+-# define ElfW __ElfN
+-# define USE_PT_GNU_EH_FRAME
+-#endif
+-
+-#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
+-    && defined(__OpenBSD__)
+-# define ElfW(type) Elf_##type
+-# define USE_PT_GNU_EH_FRAME
+-#endif
+-
+-#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
+-    && defined(TARGET_DL_ITERATE_PHDR) \
+-    && defined(__sun__) && defined(__svr4__)
++#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) && defined(TARGET_DL_ITERATE_PHDR)
+ # define USE_PT_GNU_EH_FRAME
++# ifdef __OpenBSD__
++#  define ElfW(type) Elf_##typ
++# elif defined(__Free