toolchain: switch to using gcc through package infrastructure

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

8 files changed, 628 insertions, 0 deletions

diff --git a/package/gcc/4.5.4/100-uclibc-conf.patch b/package/gcc/4.5.4/100-uclibc-conf.patch
new file mode 100644
index 000000000..cca8c8229
--- /dev/null
+++ b/package/gcc/4.5.4/100-uclibc-conf.patch
@@ -0,0 +1,33 @@
+--- gcc/gcc/config/--- gcc/contrib/regression/objs-gcc.sh
++++ gcc/contrib/regression/objs-gcc.sh
+@@ -105,6 +105,10 @@
+  then
+   make all-gdb all-dejagnu all-ld || exit 1
+   make install-gdb install-dejagnu install-ld || exit 1
++elif [ $H_REAL_TARGET = $H_REAL_HOST -a $H_REAL_TARGET = i686-pc-linux-uclibc ]
++ then
++  make all-gdb all-dejagnu all-ld || exit 1
++  make install-gdb install-dejagnu install-ld || exit 1
+ elif [ $H_REAL_TARGET = $H_REAL_HOST ] ; then
+   make bootstrap || exit 1
+   make install || exit 1
+--- gcc/libjava/classpath/ltconfig
++++ gcc/libjava/classpath/ltconfig
+@@ -603,7 +603,7 @@
+ 
+ # Transform linux* to *-*-linux-gnu*, to support old configure scripts.
+ case $host_os in
+-linux-gnu*) ;;
++linux-gnu*|linux-uclibc*) ;;
+ linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
+ esac
+ 
+@@ -1251,7 +1251,7 @@
+   ;;
+ 
+ # This must be Linux ELF.
+-linux-gnu*)
++linux*)
+   version_type=linux
+   need_lib_prefix=no
+   need_version=no
diff --git a/package/gcc/4.5.4/301-missing-execinfo_h.patch b/package/gcc/4.5.4/301-missing-execinfo_h.patch
new file mode 100644
index 000000000..0e2092f3f
--- /dev/null
+++ b/package/gcc/4.5.4/301-missing-execinfo_h.patch
@@ -0,0 +1,11 @@
+--- gcc-4.0.0/boehm-gc/include/gc.h-orig	2005-04-28 22:28:57.000000000 -0500
++++ gcc-4.0.0/boehm-gc/include/gc.h	2005-04-28 22:30:38.000000000 -0500
+@@ -500,7 +500,7 @@
+ #ifdef __linux__
+ # include <features.h>
+ # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
+-     && !defined(__ia64__)
++     && !defined(__ia64__) && !defined(__UCLIBC__)
+ #   ifndef GC_HAVE_BUILTIN_BACKTRACE
+ #     define GC_HAVE_BUILTIN_BACKTRACE
+ #   endif
diff --git a/package/gcc/4.5.4/302-c99-snprintf.patch b/package/gcc/4.5.4/302-c99-snprintf.patch
new file mode 100644
index 000000000..ba51a0e1d
--- /dev/null
+++ b/package/gcc/4.5.4/302-c99-snprintf.patch
@@ -0,0 +1,13 @@
+Index: gcc-4.3.0/libstdc++-v3/include/c_global/cstdio
+===================================================================
+--- gcc-4.3.0/libstdc++-v3/include/c_global/cstdio	(revision 129202)
++++ gcc-4.3.0/libstdc++-v3/include/c_global/cstdio	(working copy)
+@@ -144,7 +144,7 @@
+ 
+ _GLIBCXX_END_NAMESPACE
+ 
+-#if _GLIBCXX_USE_C99
++#if _GLIBCXX_USE_C99 || defined __UCLIBC__
+ 
+ #undef snprintf
+ #undef vfscanf
diff --git a/package/gcc/4.5.4/305-libmudflap-susv3-legacy.patch b/package/gcc/4.5.4/305-libmudflap-susv3-legacy.patch
new file mode 100644
index 000000000..374b1f865
--- /dev/null
+++ b/package/gcc/4.5.4/305-libmudflap-susv3-legacy.patch
@@ -0,0 +1,49 @@
+Index: gcc-4.2/libmudflap/mf-hooks2.c
+===================================================================
+--- gcc-4.2/libmudflap/mf-hooks2.c	(revision 119834)
++++ gcc-4.2/libmudflap/mf-hooks2.c	(working copy)
+@@ -427,7 +427,7 @@
+ {
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s, n, __MF_CHECK_WRITE, "bzero region");
+-  bzero (s, n);
++  memset (s, 0, n);
+ }
+ 
+ 
+@@ -437,7 +437,7 @@
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(src, n, __MF_CHECK_READ, "bcopy src");
+   MF_VALIDATE_EXTENT(dest, n, __MF_CHECK_WRITE, "bcopy dest");
+-  bcopy (src, dest, n);
++  memmove (dest, src, n);
+ }
+ 
+ 
+@@ -447,7 +447,7 @@
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s1, n, __MF_CHECK_READ, "bcmp 1st arg");
+   MF_VALIDATE_EXTENT(s2, n, __MF_CHECK_READ, "bcmp 2nd arg");
+-  return bcmp (s1, s2, n);
++  return n == 0 ? 0 : memcmp (s1, s2, n);
+ }
+ 
+ 
+@@ -456,7 +456,7 @@
+   size_t n = strlen (s);
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "index region");
+-  return index (s, c);
++  return strchr (s, c);
+ }
+ 
+ 
+@@ -465,7 +465,7 @@
+   size_t n = strlen (s);
+   TRACE ("%s\n", __PRETTY_FUNCTION__);
+   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "rindex region");
+-  return rindex (s, c);
++  return strrchr (s, c);
+ }
+ 
+ /* XXX:  stpcpy, memccpy */
diff --git a/package/gcc/4.5.4/810-arm-softfloat-libgcc.patch b/package/gcc/4.5.4/810-arm-softfloat-libgcc.patch
new file mode 100644
index 000000000..e6a30a3f0
--- /dev/null
+++ b/package/gcc/4.5.4/810-arm-softfloat-libgcc.patch
@@ -0,0 +1,38 @@
+[PATCH] add the correct symbols to libgcc for uclibc arm softfloat
+
+Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
+---
+ gcc/config/arm/linux-elf.h |    2 +-
+ gcc/config/arm/t-linux     |    6 +++++-
+ 2 files changed, 6 insertions(+), 2 deletions(-)
+
+Index: gcc-4.4.0/gcc/config/arm/t-linux
+===================================================================
+--- gcc-4.4.0.orig/gcc/config/arm/t-linux
++++ gcc-4.4.0/gcc/config/arm/t-linux
+@@ -4,7 +4,11 @@
+ 
+ LIB1ASMSRC = arm/lib1funcs.asm
+ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
+-	_arm_addsubdf3 _arm_addsubsf3
++	_arm_addsubdf3 _arm_addsubsf3 \
++	_arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
++	_arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
++	_arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
++	_arm_fixsfsi _arm_fixunssfsi
+ 
+ # MULTILIB_OPTIONS = mhard-float/msoft-float
+ # MULTILIB_DIRNAMES = hard-float soft-float
+Index: gcc-4.4.0/gcc/config/arm/linux-elf.h
+===================================================================
+--- gcc-4.4.0.orig/gcc/config/arm/linux-elf.h
++++ gcc-4.4.0/gcc/config/arm/linux-elf.h
+@@ -60,7 +60,7 @@
+    %{shared:-lc} \
+    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
+ 
+-#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
++#define LIBGCC_SPEC "-lgcc"
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
diff --git a/package/gcc/4.5.4/820-arm-unbreak-armv4t.patch b/package/gcc/4.5.4/820-arm-unbreak-armv4t.patch
new file mode 100644
index 000000000..8651afcd8
--- /dev/null
+++ b/package/gcc/4.5.4/820-arm-unbreak-armv4t.patch
@@ -0,0 +1,14 @@
+http://sourceware.org/ml/crossgcc/2008-05/msg00009.html
+
+diff -Nura gcc-4.5.1.orig/gcc/config/arm/linux-eabi.h gcc-4.5.1/gcc/config/arm/linux-eabi.h
+--- gcc-4.5.1.orig/gcc/config/arm/linux-eabi.h	2009-10-30 17:03:09.000000000 -0300
++++ gcc-4.5.1/gcc/config/arm/linux-eabi.h	2010-11-02 15:38:25.792208500 -0300
+@@ -44,7 +44,7 @@
+    The ARM10TDMI core is the default for armv5t, so set
+    SUBTARGET_CPU_DEFAULT to achieve this.  */
+ #undef  SUBTARGET_CPU_DEFAULT
+-#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
++#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi
+ 
+ /* TARGET_BIG_ENDIAN_DEFAULT is set in
+    config.gcc for big endian configurations.  */
diff --git a/package/gcc/4.5.4/830-arm-pr43440.patch b/package/gcc/4.5.4/830-arm-pr43440.patch
new file mode 100644
index 000000000..811d1f249
--- /dev/null
+++ b/package/gcc/4.5.4/830-arm-pr43440.patch
@@ -0,0 +1,345 @@
+http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43440
+
+--- gcc-4.4.4.orig/gcc/config/arm/aout.h
++++ gcc-4.4.4/gcc/config/arm/aout.h
+@@ -163,34 +163,49 @@
+   {"mvdx12", 39},				\
+   {"mvdx13", 40},				\
+   {"mvdx14", 41},				\
+-  {"mvdx15", 42},				\
+-  {"d0", 63}, {"q0", 63},			\
+-  {"d1", 65},					\
+-  {"d2", 67}, {"q1", 67},			\
+-  {"d3", 69},					\
+-  {"d4", 71}, {"q2", 71},			\
+-  {"d5", 73},					\
+-  {"d6", 75}, {"q3", 75},			\
+-  {"d7", 77},					\
+-  {"d8", 79}, {"q4", 79},			\
+-  {"d9", 81},					\
+-  {"d10", 83}, {"q5", 83},			\
+-  {"d11", 85},					\
+-  {"d12", 87}, {"q6", 87},			\
+-  {"d13", 89},					\
+-  {"d14", 91}, {"q7", 91},			\
+-  {"d15", 93},					\
+-  {"q8", 95},					\
+-  {"q9", 99},					\
+-  {"q10", 103},					\
+-  {"q11", 107},					\
+-  {"q12", 111},					\
+-  {"q13", 115},					\
+-  {"q14", 119},					\
+-  {"q15", 123}					\
++  {"mvdx15", 42}				\
+ }
+ #endif
+ 
++#ifndef OVERLAPPING_REGISTER_NAMES
++#define OVERLAPPING_REGISTER_NAMES       \
++{					 \
++  {"d0", 63, 2},			 \
++  {"d1", 65, 2},			 \
++  {"d2", 67, 2},			 \
++  {"d3", 69, 2},			 \
++  {"d4", 71, 2},			 \
++  {"d5", 73, 2},			 \
++  {"d6", 75, 2},			 \
++  {"d7", 77, 2},			 \
++  {"d8", 79, 2},			 \
++  {"d9", 81, 2},			 \
++  {"d10", 83, 2},			 \
++  {"d11", 85, 2},			 \
++  {"d12", 87, 2},			 \
++  {"d13", 89, 2},			 \
++  {"d14", 91, 2},			 \
++  {"d15", 93, 2},			 \
++  {"q0", 63, 4},			 \
++  {"q1", 67, 4},			 \
++  {"q2", 71, 4},			 \
++  {"q3", 75, 4},			 \
++  {"q4", 79, 4},			 \
++  {"q5", 83, 4},			 \
++  {"q6", 87, 4},			 \
++  {"q7", 91, 4},			 \
++  {"q8", 95, 4},			 \
++  {"q9", 99, 4},			 \
++  {"q10", 103, 4},			 \
++  {"q11", 107, 4},			 \
++  {"q12", 111, 4},			 \
++  {"q13", 115, 4},			 \
++  {"q14", 119, 4},			 \
++  {"q15", 123, 4}			 \
++}
++#endif
++
++
+ #ifndef NO_DOLLAR_IN_LABEL
+ #define NO_DOLLAR_IN_LABEL 1
+ #endif
+--- gcc-4.4.4.orig/gcc/output.h
++++ gcc-4.4.4/gcc/output.h
+@@ -169,6 +169,11 @@
+    Prefixes such as % are optional.  */
+ extern int decode_reg_name (const char *);
+ 
++/* Similar to decode_reg_name, but takes an extra parameter that is a
++   pointer to the number of (internal) registers described by the
++   external name.  */
++extern int decode_reg_name_and_count (const char *, int *);
++
+ extern void assemble_alias (tree, tree);
+ 
+ extern void default_assemble_visibility (tree, int);
+--- gcc-4.4.4.orig/gcc/reginfo.c
++++ gcc-4.4.4/gcc/reginfo.c
+@@ -800,39 +800,44 @@
+ fix_register (const char *name, int fixed, int call_used)
+ {
+   int i;
++  int reg, nregs;
+ 
+   /* Decode the name and update the primary form of
+      the register info.  */
+-
+-  if ((i = decode_reg_name (name)) >= 0)
++  if ((reg = decode_reg_name_and_count (name, &nregs)) >= 0)
+     {
+-      if ((i == STACK_POINTER_REGNUM
++      gcc_assert (nregs >= 1);
++      for (i = reg; i < reg + nregs; i++)
++      {
++        if ((i == STACK_POINTER_REGNUM
+ #ifdef HARD_FRAME_POINTER_REGNUM
+-	   || i == HARD_FRAME_POINTER_REGNUM
++             || i == HARD_FRAME_POINTER_REGNUM
+ #else
+-	   || i == FRAME_POINTER_REGNUM
++             || i == FRAME_POINTER_REGNUM
+ #endif
+-	   )
+-	  && (fixed == 0 || call_used == 0))
+-	{
+-	  static const char * const what_option[2][2] = {
+-	    { "call-saved", "call-used" },
+-	    { "no-such-option", "fixed" }};
++             )
++            && (fixed == 0 || call_used == 0))
++          {
++            static const char * const what_option[2][2] = {
++              { "call-saved", "call-used" },
++              { "no-such-option", "fixed" }};
+ 
+-	  error ("can't use '%s' as a %s register", name,
+-		 what_option[fixed][call_used]);
+-	}
+-      else
+-	{
+-	  fixed_regs[i] = fixed;
+-	  call_used_regs[i] = call_used;
++            error ("can't use '%s' as a %s register", name,
++                   what_option[fixed][call_used]);
++          }
++        else
++          {
++            fixed_regs[i] = fixed;
++            call_used_regs[i] = call_used;
+ #ifdef CALL_REALLY_USED_REGISTERS
+-	  if (fixed == 0)
+-	    call_really_used_regs[i] = call_used;
++             if (fixed == 0)
++               call_really_used_regs[i] = call_used;
+ #endif
+-	}
+-    }
+-  else
++           }
++        }
++      }
++    else
++
+     {
+       warning (0, "unknown register name: %s", name);
+     }
+--- gcc-4.4.4.orig/gcc/stmt.c
++++ gcc-4.4.4/gcc/stmt.c
+@@ -681,13 +681,14 @@
+   for (tail = clobbers; tail; tail = TREE_CHAIN (tail))
+     {
+       const char *regname;
++      int nregs;
+ 
+       if (TREE_VALUE (tail) == error_mark_node)
+ 	return;
+       regname = TREE_STRING_POINTER (TREE_VALUE (tail));
+ 
+-      i = decode_reg_name (regname);
+-      if (i >= 0 || i == -4)
++      i = decode_reg_name_and_count (regname, &nregs);
++      if (i == -4)
+ 	++nclobbers;
+       else if (i == -2)
+ 	error ("unknown register name %qs in %<asm%>", regname);
+@@ -695,14 +696,21 @@
+       /* Mark clobbered registers.  */
+       if (i >= 0)
+         {
+-	  /* Clobbering the PIC register is an error.  */
+-	  if (i == (int) PIC_OFFSET_TABLE_REGNUM)
+-	    {
+-	      error ("PIC register %qs clobbered in %<asm%>", regname);
+-	      return;
+-	    }
++        int reg;
+ 
+-	  SET_HARD_REG_BIT (clobbered_regs, i);
++        for (reg = i; reg < i + nregs; reg++)
++          {
++            ++nclobbers;
++
++            /* Clobbering the PIC register is an error.  */
++            if (reg == (int) PIC_OFFSET_TABLE_REGNUM)
++              {
++                error ("PIC register clobbered by %qs in %<asm%>", regname);
++                return;
++              }
++
++            SET_HARD_REG_BIT (clobbered_regs, reg);
++          }
+ 	}
+     }
+ 
+@@ -1012,8 +1020,9 @@
+       for (tail = clobbers; tail; tail = TREE_CHAIN (tail))
+ 	{
+ 	  const char *regname = TREE_STRING_POINTER (TREE_VALUE (tail));
+-	  int j = decode_reg_name (regname);
+-	  rtx clobbered_reg;
++	  int reg, nregs;
++          int j = decode_reg_name_and_count (regname, &nregs);
++          rtx clobbered_reg;
+ 
+ 	  if (j < 0)
+ 	    {
+@@ -1033,31 +1042,40 @@
+ 	      /* Ignore unknown register, error already signaled.  */
+ 	      continue;
+ 	    }
+-
+-	  /* Use QImode since that's guaranteed to clobber just one reg.  */
+-	  clobbered_reg = gen_rtx_REG (QImode, j);
+-
+-	  /* Do sanity check for overlap between clobbers and respectively
+-	     input and outputs that hasn't been handled.  Such overlap
+-	     should have been detected and reported above.  */
+-	  if (!clobber_conflict_found)
+-	    {
+-	      int opno;
+-
+-	      /* We test the old body (obody) contents to avoid tripping
+-		 over the under-construction body.  */
+-	      for (opno = 0; opno < noutputs; opno++)
+-		if (reg_overlap_mentioned_p (clobbered_reg, output_rtx[opno]))
+-		  internal_error ("asm clobber conflict with output operand");
+-
+-	      for (opno = 0; opno < ninputs - ninout; opno++)
+-		if (reg_overlap_mentioned_p (clobbered_reg,
+-					     ASM_OPERANDS_INPUT (obody, opno)))
+-		  internal_error ("asm clobber conflict with input operand");
++        
++          for (reg = j; reg < j + nregs; reg++)
++            {
++              /* Use QImode since that's guaranteed to clobber just
++               * one reg.  */
++              clobbered_reg = gen_rtx_REG (QImode, reg);
++
++              /* Do sanity check for overlap between clobbers and
++                 respectively input and outputs that hasn't been
++                 handled.  Such overlap should have been detected and
++                 reported above.  */
++              if (!clobber_conflict_found)
++                {
++                  int opno;
++
++                  /* We test the old body (obody) contents to avoid
++                     tripping over the under-construction body.  */
++                  for (opno = 0; opno < noutputs; opno++)
++                    if (reg_overlap_mentioned_p (clobbered_reg,
++                                                 output_rtx[opno]))
++                      internal_error
++                        ("asm clobber conflict with output operand");
++
++                  for (opno = 0; opno < ninputs - ninout; opno++)
++                    if (reg_overlap_mentioned_p (clobbered_reg,
++                                                 ASM_OPERANDS_INPUT (obody,
++                                                                     opno)))
++                      internal_error
++                        ("asm clobber conflict with input operand");
++                }
++  
++              XVECEXP (body, 0, i++)
++                = gen_rtx_CLOBBER (VOIDmode, clobbered_reg);
+ 	    }
+-
+-	  XVECEXP (body, 0, i++)
+-	    = gen_rtx_CLOBBER (VOIDmode, clobbered_reg);
+ 	}
+ 
+       emit_insn (body);
+--- gcc-4.4.4.orig/gcc/varasm.c
++++ gcc-4.4.4/gcc/varasm.c
+@@ -1031,8 +1031,11 @@
+    Prefixes such as % are optional.  */
+ 
+ int
+-decode_reg_name (const char *asmspec)
++decode_reg_name_and_count (const char *asmspec, int *pnregs)
+ {
++  /* Presume just one register is clobbered.  */
++   *pnregs = 1;
++
+   if (asmspec != 0)
+     {
+       int i;
+@@ -1058,6 +1061,25 @@
+ 	    && ! strcmp (asmspec, strip_reg_name (reg_names[i])))
+ 	  return i;
+ 
++#ifdef OVERLAPPING_REGISTER_NAMES
++      {
++      static const struct
++      {
++        const char *const name;
++        const int number;
++        const int nregs;
++      } table[] = OVERLAPPING_REGISTER_NAMES;
++
++      for (i = 0; i < (int) ARRAY_SIZE (table); i++)
++        if (table[i].name[0]
++            && ! strcmp (asmspec, table[i].name))
++          {
++            *pnregs = table[i].nregs;
++            return table[i].number;
++          }
++      }
++#endif /* OVERLAPPING_REGISTER_NAMES */
++
+ #ifdef ADDITIONAL_REGISTER_NAMES
+       {
+ 	static const struct { const char *const name; const int number; } table[]
+@@ -1081,6 +1103,15 @@
+ 
+   return -1;
+ }
++
++int
++decode_reg_name (const char *name)
++{
++   int count;
++   return decode_reg_name_and_count (name, &count);
++}
++
++
+ 
+ /* Return true if DECL's initializer is suitable for a BSS section.  */
+ 
diff --git a/package/gcc/4.5.4/powerpc-link-with-math-lib.patch.conditional b/package/gcc/4.5.4/powerpc-link-with-math-lib.patch.conditional
new file mode 100644
index 000000000..7e75e87f2
--- /dev/null
+++ b/package/gcc/4.5.4/powerpc-link-with-math-lib.patch.conditional
@@ -0,0 +1,125 @@
+http://gcc.gnu.org/ml/gcc-patches/2008-10/msg00269.html
+
+On glibc the libc.so carries a copy of the math function copysignl() but
+on uClibc math functions like copysignl() live in libm. Since libgcc_s
+contains unresolved symbols, any attempt to link against libgcc_s
+without explicitely specifying -lm fails, resulting in a broken
+bootstrap of the compiler.
+
+Forward port to gcc 4.5.1 by Gustavo Zacarias <gustavo@zacarias.com.ar>
+
+diff -Nura gcc-4.5.1.orig/gcc/config/t-slibgcc-elf-ver gcc-4.5.1/gcc/config/t-slibgcc-elf-ver
+--- gcc-4.5.1.orig/gcc/config/t-slibgcc-elf-ver	2010-11-03 14:35:08.644904042 -0300
++++ gcc-4.5.1/gcc/config/t-slibgcc-elf-ver	2010-11-03 14:35:56.332904024 -0300
+@@ -27,7 +27,7 @@
+ SHLIB_OBJS = @shlib_objs@
+ SHLIB_DIR = @multilib_dir@
+ SHLIB_SLIBDIR_QUAL = @shlib_slibdir_qual@
+-SHLIB_LC = -lc
++SHLIB_LC = @libgcc_libm@ -lc
+ SHLIB_MAKE_SOLINK = $(LN_S) $(SHLIB_SONAME) $(SHLIB_DIR)/$(SHLIB_SOLINK)
+ SHLIB_INSTALL_SOLINK = $(LN_S) $(SHLIB_SONAME) \
+ 	$$(DESTDIR)$$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)
+diff -Nura gcc-4.5.1.orig/libgcc/Makefile.in gcc-4.5.1/libgcc/Makefile.in
+--- gcc-4.5.1.orig/libgcc/Makefile.in	2010-11-03 14:32:44.272904042 -0300
++++ gcc-4.5.1/libgcc/Makefile.in	2010-11-03 14:37:03.893904042 -0300
+@@ -39,6 +39,7 @@
+ decimal_float = @decimal_float@
+ enable_decimal_float = @enable_decimal_float@
+ fixed_point = @fixed_point@
++LIBGCC_LIBM = @LIBGCC_LIBM@
+ 
+ host_noncanonical = @host_noncanonical@
+ 
+@@ -798,9 +799,10 @@
+ 		@multilib_dir@,$(MULTIDIR),$(subst \
+ 		@shlib_objs@,$(objects),$(subst \
+ 		@shlib_base_name@,libgcc_s,$(subst \
++		@libgcc_libm@,$(LIBGCC_LIBM),$(subst \
+ 		@shlib_map_file@,$(mapfile),$(subst \
+ 		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(subst \
+-		@shlib_slibdir@,$(shlib_slibdir),$(SHLIB_LINK))))))))
++		@shlib_slibdir@,$(shlib_slibdir),$(SHLIB_LINK)))))))))
+ 
+ libunwind$(SHLIB_EXT): $(libunwind-s-objects) $(extra-parts)
+ 	# @multilib_flags@ is still needed because this may use
+diff -Nura gcc-4.5.1.orig/libgcc/configure gcc-4.5.1/libgcc/configure
+--- gcc-4.5.1.orig/libgcc/configure	2010-11-03 14:32:44.283904042 -0300
++++ gcc-4.5.1/libgcc/configure	2010-11-03 14:39:48.685904042 -0300
+@@ -557,6 +557,7 @@
+ extra_parts
+ tmake_file
+ set_use_emutls
++LIBGCC_LIBM
+ set_have_cc_tls
+ vis_hide
+ fixed_point
+@@ -3847,6 +3848,37 @@
+   set_use_emutls="-DUSE_EMUTLS"
+ fi
+ 
++# On powerpc libgcc_s references copysignl which is a libm function but
++# glibc apparently also provides it via libc as opposed to uClibc where
++# it lives in libm.
++echo "$as_me:$LINENO: checking for library containing copysignl" >&5
++echo $ECHO_N "checking for library containing copysignl... $ECHO_C" >&6
++if test "${libgcc_cv_copysignl_lib+set}" = set; then
++  echo $ECHO_N "(cached) $ECHO_C" >&6
++else
++
++    echo '#include <features.h>' > conftest.c
++    echo 'int the_libc = __UCLIBC__ + __powerpc__;' >> conftest.c
++    libgcc_cv_copysignl_lib="-lc"
++    if { ac_try='${CC-cc} -S conftest.c -o conftest.s 1>&5'
++  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
++  (eval $ac_try) 2>&5
++  ac_status=$?
++  echo "$as_me:$LINENO: \$? = $ac_status" >&5
++  (exit $ac_status); }; }
++    then
++       libgcc_cv_copysignl_lib="-lm"
++    fi
++    rm -f conftest.*
++
++fi
++echo "$as_me:$LINENO: result: $libgcc_cv_copysignl_lib" >&5
++echo "${ECHO_T}$libgcc_cv_copysignl_lib" >&6
++
++case /${libgcc_cv_copysignl_lib}/ in
++  /-lm/) LIBGCC_LIBM="$LIBGCC_LIBM -lm" ;;
++  *) LIBGCC_LIBM= ;;
++esac
+ 
+ # Conditionalize the makefile for this target machine.
+ tmake_file_=
+diff -Nura gcc-4.5.1.orig/libgcc/configure.ac gcc-4.5.1/libgcc/configure.ac
+--- gcc-4.5.1.orig/libgcc/configure.ac	2010-11-03 14:32:44.735904042 -0300
++++ gcc-4.5.1/libgcc/configure.ac	2010-11-03 14:42:11.278904045 -0300
+@@ -238,6 +238,27 @@
+ fi
+ AC_SUBST(set_have_cc_tls)
+ 
++# On powerpc libgcc_s references copysignl which is a libm function but
++# glibc apparently also provides it via libc as opposed to uClibc where
++# it lives in libm.
++AC_CACHE_CHECK
++  libgcc_cv_copysignl_lib,
++    echo '#include <features.h>' > conftest.c
++    echo 'int the_libc = __UCLIBC__ + __powerpc__;' >> conftest.c
++    libgcc_cv_copysignl_lib="-lc"
++    if AC_TRY_COMMAND(${CC-cc} -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD)
++    then
++       libgcc_cv_copysignl_lib="-lm"
++    fi
++    rm -f conftest.*
++  ])
++
++case /${libgcc_cv_copysignl_lib}/ in
++  /-lm/) LIBGCC_LIBM="$LIBGCC_LIBM -lm" ;;
++  *) LIBGCC_LIBM= ;;
++esac
++AC_SUBST(LIBGCC_LIBM)
++
+ # See if we have emulated thread-local storage.
+ GCC_CHECK_EMUTLS
+ set_use_emutls=