gdb/

        * buildsym.c, symtab.c: Add local hack for FILENAME_CMP testing.
        * utils.c (cygwin_filename_cmp): New.

        Backport:
        2006-04-21  Frederic Riss  <frederic.riss@st.com>
        * dwarf2read.c (dwarf2_start_subfile): Change prototype to accept
        compilation directory as last argument.
        Always pass comp_dir as second argument to start_subfile and prepend
        dirname to the filename when necessary.
        Remove now superfluous search for pre-existing subfile.
        (dwarf_decode_lines): Pass the compilation directory to
        dwarf2_start_subfile.

        gdb/testsuite/
        * config/symbian.exp (gdb_target_symbian): Handle a running target.
        (gdb_load): Add return value.

        * gdb.base/completion.exp: Test arg rather than a.  Handle
        very small lists of symbols.

        * gdb.base/list.exp: Differentiate run behavior based on
        use_gdb_stub.

        * gdb.base/maint.exp: Accept local symbols.  Accept missing .data.

        * gdb.base/remote.exp: Update packet limits.

        * gdb.base/varargs.exp: Don't pass an empty list item.

        * lib/gdb.exp (fullname_syntax): Recognize forward slashes in DOS
        paths.

        Backport:
        2006-06-22  Daniel Jacobowitz  <dan@codesourcery.com>
        * gdb.base/gdb1555.exp: Use gdb_compile_shlib.  Skip if not
        native.

        2006-06-22  Daniel Jacobowitz  <dan@codesourcery.com>
        * gdb.stabs/exclfwd.exp: Skip the test if configure did not
        enable stabs testing.

        2006-05-06  Ulrich Weigand  <Ulrich.Weigand@de.ibm.com>
        * gdb.mi/mi-basics.exp: Add missing serial number to
        expected output in some mi_gdb_test statements.
        * gdb.mi/mi2-basics.exp: Likewise.