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)
1 http://sources.redhat.com/ml/binutils/2004-04/msg00665.html
3 fixes building on some architectures (like m68k/arm/cris/etc...) because
4 it does the right thing
6 diff -durN glibc-2.10.1.orig/include/libc-symbols.h glibc-2.10.1/include/libc-symbols.h
7 --- glibc-2.10.1.orig/include/libc-symbols.h 2009-03-14 00:51:46.000000000 +0100
8 +++ glibc-2.10.1/include/libc-symbols.h 2009-11-13 00:50:07.000000000 +0100
10 # define __make_section_unallocated(section_string)
13 -/* Tacking on "\n\t#" to the section name makes gcc put it's bogus
14 +/* Tacking on "\n#APP\n\t#" to the section name makes gcc put it's bogus
15 section attributes on what looks like a comment to the assembler. */
16 # ifdef HAVE_SECTION_QUOTES
17 -# define __sec_comment "\"\n\t#\""
18 +# define __sec_comment "\"\n#APP\n\t#\""
20 -# define __sec_comment "\n\t#"
21 +# define __sec_comment "\n#APP\n\t#"
23 # define link_warning(symbol, msg) \
24 __make_section_unallocated (".gnu.warning." #symbol) \