patches/gcc/4.2.1/300-libstdc++-nostdlib-linking.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Tue Jul 31 22:27:29 2012 +0200 (2012-07-31)
changeset 3018 7776e8369284
permissions -rw-r--r--
complibs/cloog: create missing m4 dir

Because we now patch configure.in and configure, the Makefile quicks
in a re-build rule as the source files are now more recent than the
bundled generated files, and that fails because the m4 directory
is missing, although on some systems where aclocal is not installed,
the re-build rule does nothing (except a warning).

Always create tht directory.

Reported-by: Per Arnold Blaasmo <per-arnold.blaasmo@atmel.com>
[Also thanks to Thomas De Schampheleire <patrickdepinguin@gmail.com>
for some digging works on this issue]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
     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'