diff -ruNp gcc-4.4.1.orig/gcc/config/rs6000/t-ppccomm gcc-4.4.1/gcc/config/rs6000/t-ppccomm
--- gcc-4.4.1.orig/gcc/config/rs6000/t-ppccomm	2008-06-26 22:12:41.000000000 +0200
+++ gcc-4.4.1/gcc/config/rs6000/t-ppccomm	2009-09-17 10:52:37.335783895 +0200
@@ -1,6 +1,9 @@
 # Common support for PowerPC ELF targets (both EABI and SVR4).
 
-LIB2FUNCS_EXTRA += tramp.S $(srcdir)/config/rs6000/darwin-ldouble.c
+LIB2FUNCS_EXTRA += tramp.S
+#ifneq ($(LIBGCC_LDBL),)
+LIB2FUNCS_EXTRA += $(srcdir)/config/rs6000/darwin-ldouble.c
+#endif
 
 # These can't end up in shared libgcc
 LIB2FUNCS_STATIC_EXTRA = eabi.S
diff -ruNp gcc-4.4.1.orig/gcc/config/t-slibgcc-elf-ver gcc-4.4.1/gcc/config/t-slibgcc-elf-ver
--- gcc-4.4.1.orig/gcc/config/t-slibgcc-elf-ver	2009-09-17 10:45:49.595814351 +0200
+++ gcc-4.4.1/gcc/config/t-slibgcc-elf-ver	2009-09-17 10:30:28.720513743 +0200
@@ -9,7 +9,7 @@ SHLIB_MAP = @shlib_map_file@
 SHLIB_OBJS = @shlib_objs@
 SHLIB_DIR = @multilib_dir@
 SHLIB_SLIBDIR_QUAL = @shlib_slibdir_qual@
-SHLIB_LC = -lc
+SHLIB_LC = @libgcc_libm@ -lc
 
 SHLIB_LINK = $(GCC_FOR_TARGET) $(LIBGCC2_CFLAGS) -shared -nodefaultlibs \
 	-Wl,--soname=$(SHLIB_SONAME) \
diff -ruNp gcc-4.4.1.orig/libgcc/config/rs6000/t-ldbl gcc-4.4.1/libgcc/config/rs6000/t-ldbl
--- gcc-4.4.1.orig/libgcc/config/rs6000/t-ldbl	1970-01-01 01:00:00.000000000 +0100
+++ gcc-4.4.1/libgcc/config/rs6000/t-ldbl	2009-09-17 10:30:28.720513743 +0200
@@ -0,0 +1,5 @@
+SHLIB_MAPFILES += $(gcc_srcdir)/config/rs6000/libgcc-ppc-glibc.ver
+
+#ifeq ($(LIBGCC_LDBL),128)
+HOST_LIBGCC2_CFLAGS += -mlong-double-128
+#endif
diff -ruNp gcc-4.4.1.orig/libgcc/config.host gcc-4.4.1/libgcc/config.host
--- gcc-4.4.1.orig/libgcc/config.host	2009-09-17 10:45:49.595814351 +0200
+++ gcc-4.4.1/libgcc/config.host	2009-09-17 10:30:28.720513743 +0200
@@ -469,6 +469,9 @@ powerpc-*-linux*altivec*)
 powerpc-*-linux*spe*)
 	tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-ldbl128 t-softfp"
 	;;
+#powerpc-*-linux-uclibc*)
+#	tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-ldbl t-softfp"
+#	;;
 powerpc-*-linux*)
 	tmake_file="${tmake_file} rs6000/t-ppccomm rs6000/t-ldbl128 t-softfp"
 	;;
diff -ruNp gcc-4.4.1.orig/libgcc/configure gcc-4.4.1/libgcc/configure
--- gcc-4.4.1.orig/libgcc/configure	2009-09-17 10:45:49.595814351 +0200
+++ gcc-4.4.1/libgcc/configure	2009-09-17 10:30:28.720513743 +0200
@@ -272,7 +272,7 @@ PACKAGE_STRING='GNU C Runtime Library 1.
 PACKAGE_BUGREPORT=''
 
 ac_unique_file="static-object.mk"
-ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS libgcc_topdir enable_shared slibdir INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AWK build build_cpu build_vendor build_os host host_cpu host_vendor host_os host_noncanonical build_libsubdir build_subdir host_subdir target_subdir AR ac_ct_AR LIPO ac_ct_LIPO NM ac_ct_NM RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP LN_S CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP decimal_float enable_decimal_float fixed_point vis_hide set_have_cc_tls tmake_file extra_parts asm_hidden_op LIBOBJS LTLIBOBJS'
+ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS libgcc_topdir enable_shared slibdir INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA AWK build build_cpu build_vendor build_os host host_cpu host_vendor host_os host_noncanonical build_libsubdir build_subdir host_subdir target_subdir AR ac_ct_AR LIPO ac_ct_LIPO NM ac_ct_NM RANLIB ac_ct_RANLIB STRIP ac_ct_STRIP LN_S CC CFLAGS LDFLAGS CPPFLAGS ac_ct_CC EXEEXT OBJEXT CPP decimal_float enable_decimal_float fixed_point vis_hide set_have_cc_tls LIBGCC_LIBM LIBGCC_LDBL tmake_file extra_parts asm_hidden_op LIBOBJS LTLIBOBJS'
 ac_subst_files=''
 ac_pwd=`pwd`
 
@@ -3547,6 +3547,57 @@ if test "$enable_tls $gcc_cv_have_cc_tls
 fi
 
 
+LIBGCC_LDBL=128
+# On powerpc libgcc_s may reference copysignl for TFmode helpers like
+# _divtc3 and _multc3.
+# glibc apparently also provides copysignl via libc as opposed to uClibc where
+# math functions tend to live in libm, provided they are not turned off.
+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) $ECHO_C" >&6
+else
+
+    echo '#include <features.h>' > conftest.c
+    echo '#include <math.h>' >> conftest.c
+    echo '#if __UCLIBC_HAS_LONG_DOUBLE_MATH__' >> conftest.c
+    echo 'long double ret;' >> conftest.c
+    echo 'static void has_ldbl(void) {ret = copysignl(1., -1.);}' >> conftest.c
+    echo '#endif' >> conftest.c
+    if { ac_try='${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 $ac_status); }; }
+    then
+      if grep "has_ldbl" conftest.s >/dev/null; then
+	if grep "copysignl" conftest.s >/dev/null; then
+	  libgcc_cv_copysignl_lib="-lm"
+	fi
+      else
+	LIBGCC_LDBL=
+      fi
+    fi
+    rm -f conftest.*
+
+fi
+echo "$as_me:$LINENO: result: $libgcc_cv_copysignl_lib" >&5
+echo "${ECHO_T}$libgcc_cv_copysignl_lib" >&6
+echo "$as_me:$LINENO: tmake_file='$tmake_file'" >&6
+case /${libgcc_cv_copysignl_lib}/ in
+  /-l*/) LIBGCC_LIBM="$LIBGCC_LIBM ${libgcc_cv_copysignl_lib}"
+	echo "$as_me:$LINENO: result: $libgcc_cv_copysignl_lib" >&5
+echo "${ECHO_T}$libgcc_cv_copysignl_lib" >&6
+	;;
+  *) LIBGCC_LIBM=
+	echo "$as_me:$LINENO: result: None" >&5
+echo "${ECHO_T}None" >&6
+	;;
+esac
+
+
+
 # Conditionalize the makefile for this target machine.
 tmake_file_=
 for f in ${tmake_file}
@@ -4267,6 +4318,8 @@ s,@enable_decimal_float@,$enable_decimal
 s,@fixed_point@,$fixed_point,;t t
 s,@vis_hide@,$vis_hide,;t t
 s,@set_have_cc_tls@,$set_have_cc_tls,;t t
+s,@LIBGCC_LIBM@,$LIBGCC_LIBM,;t t
+s,@LIBGCC_LDBL@,$LIBGCC_LDBL,;t t
 s,@tmake_file@,$tmake_file,;t t
 s,@extra_parts@,$extra_parts,;t t
 s,@asm_hidden_op@,$asm_hidden_op,;t t
diff -ruNp gcc-4.4.1.orig/libgcc/configure.ac gcc-4.4.1/libgcc/configure.ac
--- gcc-4.4.1.orig/libgcc/configure.ac	2009-09-17 10:45:49.595814351 +0200
+++ gcc-4.4.1/libgcc/configure.ac	2009-09-17 10:30:28.720513743 +0200
@@ -223,6 +223,43 @@ if test "$enable_tls $gcc_cv_have_cc_tls
 fi
 AC_SUBST(set_have_cc_tls)
 
+LIBGCC_LDBL=128
+# On powerpc libgcc_s may reference copysignl for TFmode helpers like
+# _divtc3 and _multc3.
+# glibc apparently also provides copysignl via libc as opposed to uClibc where
+# math functions tend to live in libm, provided they are not turned off.
+AC_CACHE_CHECK([for library containing copysignl],
+  libgcc_cv_copysignl_lib, [
+    echo '#include <features.h>' > conftest.c
+    echo '#include <math.h>' >> conftest.c
+    echo '#if __UCLIBC_HAS_LONG_DOUBLE_MATH__' >> conftest.c
+    echo 'long double ret;' >> conftest.c
+    echo 'static void has_ldbl(void) {ret = copysignl(1., -1.);}' >> conftest.c
+    echo '#endif' >> conftest.c
+    if AC_TRY_COMMAND(${CC-cc} -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD)
+    then
+      if grep "has_ldbl" conftest.s >/dev/null; then
+	if grep "copysignl" conftest.s >/dev/null; then
+	  libgcc_cv_copysignl_lib="-lm"
+	fi
+      else
+	LIBGCC_LDBL=
+      fi
+    fi
+    rm -f conftest.*
+  ])
+
+case /${libgcc_cv_copysignl_lib}/ in
+  /-l*/) LIBGCC_LIBM="$LIBGCC_LIBM ${libgcc_cv_copysignl_lib}"
+	AC_MSG_RESULT([$libgcc_cv_copysignl_lib])
+	;;
+  *) LIBGCC_LIBM=
+	AC_MSG_RESULT(None)
+	;;
+esac
+AC_SUBST(LIBGCC_LIBM)
+AC_SUBST(LIBGCC_LDBL)
+
 # Conditionalize the makefile for this target machine.
 tmake_file_=
 for f in ${tmake_file}
diff -ruNp gcc-4.4.1.orig/libgcc/Makefile.in gcc-4.4.1/libgcc/Makefile.in
--- gcc-4.4.1.orig/libgcc/Makefile.in	2009-09-17 10:45:49.600026370 +0200
+++ gcc-4.4.1/libgcc/Makefile.in	2009-09-17 10:30:28.724513657 +0200
@@ -39,6 +39,8 @@ enable_shared = @enable_shared@
 decimal_float = @decimal_float@
 enable_decimal_float = @enable_decimal_float@
 fixed_point = @fixed_point@
+LIBGCC_LIBM = @LIBGCC_LIBM@
+LIBGCC_LDBL = @LIBGCC_LDBL@
 
 host_noncanonical = @host_noncanonical@
 
@@ -787,9 +789,10 @@ libgcc_s$(SHLIB_EXT): $(libgcc-s-objects
 		@multilib_dir@,$(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