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 timezone data has been split into the package sys-libs/timezone-data
3 diff -durN glibc-2.10.1.orig/Makeconfig glibc-2.10.1/Makeconfig
4 --- glibc-2.10.1.orig/Makeconfig 2009-11-13 00:50:13.000000000 +0100
5 +++ glibc-2.10.1/Makeconfig 2009-11-13 00:50:41.000000000 +0100
7 stdlib stdio-common libio malloc string wcsmbs time dirent \
8 grp pwd posix io termios resource misc socket sysvipc gmon \
9 gnulib iconv iconvdata wctype manual shadow gshadow po argp \
10 - crypt nss localedata timezone rt conform debug \
11 + crypt nss localedata rt conform debug \
12 $(add-on-subdirs) $(dlfcn) $(binfmt-subdir)
14 ifndef avoid-generated