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authorGustavo Zacarias <gustavo@zacarias.com.ar>2011-05-02 15:13:01 -0300
committerPeter Korsgaard <jacmet@sunsite.dk>2011-05-02 21:14:44 +0200
commit0a2af382bbc11d6fd787c247b0384faee91f8f9f (patch)
treedcbfc0f3a7af2274f224fb9dfa9f6265bd9d7804 /toolchain/gcc/4.5.3
parentd1b42b24b88cc15a825d20221b2199bce4f2e6aa (diff)
downloadbuildroot-novena-0a2af382bbc11d6fd787c247b0384faee91f8f9f.tar.gz
buildroot-novena-0a2af382bbc11d6fd787c247b0384faee91f8f9f.zip
toolchain: bump gcc 4.5 series to verion 4.5.3
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Diffstat (limited to 'toolchain/gcc/4.5.3')
-rw-r--r--toolchain/gcc/4.5.3/100-uclibc-conf.patch33
-rw-r--r--toolchain/gcc/4.5.3/301-missing-execinfo_h.patch11
-rw-r--r--toolchain/gcc/4.5.3/302-c99-snprintf.patch13
-rw-r--r--toolchain/gcc/4.5.3/305-libmudflap-susv3-legacy.patch49
-rw-r--r--toolchain/gcc/4.5.3/810-arm-softfloat-libgcc.patch38
-rw-r--r--toolchain/gcc/4.5.3/820-arm-unbreak-armv4t.patch14
-rw-r--r--toolchain/gcc/4.5.3/830-arm-pr43440.patch345
-rw-r--r--toolchain/gcc/4.5.3/powerpc-link-with-math-lib.patch.conditional125
8 files changed, 628 insertions, 0 deletions
diff --git a/toolchain/gcc/4.5.3/100-uclibc-conf.patch b/toolchain/gcc/4.5.3/100-uclibc-conf.patch
new file mode 100644
index 000000000..cca8c8229
--- /dev/null
+++ b/toolchain/gcc/4.5.3/100-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/toolchain/gcc/4.5.3/301-missing-execinfo_h.patch b/toolchain/gcc/4.5.3/301-missing-execinfo_h.patch
new file mode 100644
index 000000000..0e2092f3f
--- /dev/null
+++ b/toolchain/gcc/4.5.3/301-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/toolchain/gcc/4.5.3/302-c99-snprintf.patch b/toolchain/gcc/4.5.3/302-c99-snprintf.patch
new file mode 100644
index 000000000..ba51a0e1d
--- /dev/null
+++ b/toolchain/gcc/4.5.3/302-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/toolchain/gcc/4.5.3/305-libmudflap-susv3-legacy.patch b/toolchain/gcc/4.5.3/305-libmudflap-susv3-legacy.patch
new file mode 100644
index 000000000..374b1f865
--- /dev/null
+++ b/toolchain/gcc/4.5.3/305-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/toolchain/gcc/4.5.3/810-arm-softfloat-libgcc.patch b/toolchain/gcc/4.5.3/810-arm-softfloat-libgcc.patch
new file mode 100644
index 000000000..e6a30a3f0
--- /dev/null
+++ b/toolchain/gcc/4.5.3/810-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/toolchain/gcc/4.5.3/820-arm-unbreak-armv4t.patch b/toolchain/gcc/4.5.3/820-arm-unbreak-armv4t.patch
new file mode 100644
index 000000000..8651afcd8
--- /dev/null
+++ b/toolchain/gcc/4.5.3/820-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/toolchain/gcc/4.5.3/830-arm-pr43440.patch b/toolchain/gcc/4.5.3/830-arm-pr43440.patch
new file mode 100644
index 000000000..811d1f249
--- /dev/null
+++ b/toolchain/gcc/4.5.3/830-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/toolchain/gcc/4.5.3/powerpc-link-with-math-lib.patch.conditional b/toolchain/gcc/4.5.3/powerpc-link-with-math-lib.patch.conditional
new file mode 100644
index 000000000..7e75e87f2
--- /dev/null
+++ b/toolchain/gcc/4.5.3/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=