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patches/gcc/4.2.1/300-libstdc++-nostdlib-linking.patch
author Michael Hope <michael.hope@linaro.org>
Thu Sep 29 12:27:54 2011 +1300 (2011-09-29)
changeset 2694 2c01a02334ea
permissions -rw-r--r--
Makefile: use phony targets

Add 'build', 'build-*', and 'install' as phony targets to the top level
Makefile.

I tend to do everything in tree with the build in a directory called
'build'. This interfered with the target 'build', making it think the
target was up to date, and stopping scripts/crosstool-NG.sh from being
regenerated.

Added 'install' as I often set the prefix to $PWD/install.

Signed-off-by: Michael Hope <michael.hope@linaro.org> 
     1 On 20090401, Ted Jordan writes:

     2  The generated libtool for building libstdc++ adds the -nostdlib option to the

     3  g++ command for linking but doesn't add -lgcc.  This causes a "hidden symbol"

     4  error when linking against the libstdc++ shared object.  This patch adds gcc

     5  to the list of libraries linked against when linking libstdc++.

     6 

     7 Index: gcc-4.2.1/ltcf-cxx.sh

     8 ===================================================================

     9 --- gcc-4.2.1.orig/ltcf-cxx.sh	2005-07-15 21:30:53.000000000 -0500

    10 +++ gcc-4.2.1/ltcf-cxx.sh	2009-04-02 09:30:34.000000000 -0500

    11 @@ -78,8 +78,8 @@

    12    # to be the same.

    13  

    14    if test "$with_gnu_ld" = yes; then

    15 -    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'

    16 -    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'

    17 +    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -lgcc ${wl}-soname $wl$soname -o $lib'

    18 +    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -lgcc ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'

    19  

    20      hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'

    21      export_dynamic_flag_spec='${wl}--export-dynamic'
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