patches/gcc/4.2.1/300-libstdc++-nostdlib-linking.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jul 12 23:52:24 2011 +0200 (2011-07-12)
branch1.11
changeset 2558 b7317d2fe0e9
permissions -rw-r--r--
scripts, cc/gcc: do not fail on existing symlinks or build.log

If the user builds a toolchain over an existing one, so, without removing
CT_PREFIX_DIR, the build fails as the symlinks already exist, as does the
build.log.

This can also happen (for build.log) if the user first ran in download-
or extract-only.

Patch (with no SoB) originally from:
Phil Wilshire <phil.wilshire@overturenetworks.com>

Modified by me as it did not apply cleanly.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 1ebc2248cc60230cd53ff94ae8f8f1e3261461a3)
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On 20090401, Ted Jordan writes:
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 The generated libtool for building libstdc++ adds the -nostdlib option to the
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 g++ command for linking but doesn't add -lgcc.  This causes a "hidden symbol"
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 error when linking against the libstdc++ shared object.  This patch adds gcc
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 to the list of libraries linked against when linking libstdc++.
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Index: gcc-4.2.1/ltcf-cxx.sh
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===================================================================
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--- gcc-4.2.1.orig/ltcf-cxx.sh	2005-07-15 21:30:53.000000000 -0500
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+++ gcc-4.2.1/ltcf-cxx.sh	2009-04-02 09:30:34.000000000 -0500
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@@ -78,8 +78,8 @@
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   # to be the same.
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   if test "$with_gnu_ld" = yes; then
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-    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname -o $lib'
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-    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
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+    archive_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -lgcc ${wl}-soname $wl$soname -o $lib'
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+    archive_expsym_cmds='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -lgcc ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
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     hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
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     export_dynamic_flag_spec='${wl}--export-dynamic'