gcc: remove 4.5.x

###############################################################################

comment "Legacy options removed in 2016.02"

config BR2_GCC_VERSION_4_5_X

	bool "gcc 4.5.x has been removed"

	select BR2_LEGACY

	help

	  The 4.5.x version of gcc has been removed. Use a newer

	  version instead.

config BR2_PACKAGE_SQLITE_READLINE

	bool "command-line editing support was updated"

	select BR2_PACKAGE_NCURSES

--- 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

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=

--- 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

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