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)
3 diff -durN glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/hppa/elf/start.S glibc-2.10.1/glibc-ports-2.10.1/sysdeps/hppa/elf/start.S
4 --- glibc-2.10.1.orig/glibc-ports-2.10.1/sysdeps/hppa/elf/start.S 2009-05-16 10:36:20.000000000 +0200
5 +++ glibc-2.10.1/glibc-ports-2.10.1/sysdeps/hppa/elf/start.S 2009-11-13 00:50:28.000000000 +0100
9 /* load main (1st argument) */
10 - addil LR'.Lpmain, %r19
11 - ldw RR'.Lpmain(%r1), %r26
12 + addil LT'.Lpmain, %r19
13 + ldw RT'.Lpmain(%r1), %r26
15 /* void (*init) (void) (4th argument) */
16 - addil LR'.Lp__libc_csu_init, %r19
17 - ldw RR'.Lp__libc_csu_init(%r1), %r23
18 + addil LT'.Lp__libc_csu_init, %r19
19 + ldw RT'.Lp__libc_csu_init(%r1), %r23
21 /* void (*fini) (void) (5th argument) */
22 - addil LR'.Lp__libc_csu_fini, %r19
23 - ldw RR'.Lp__libc_csu_fini(%r1), %r22
24 + addil LT'.Lp__libc_csu_fini, %r19
25 + ldw RT'.Lp__libc_csu_fini(%r1), %r22
28 /* load main (1st argument) */
29 diff -durN glibc-2.10.1.orig/ports/sysdeps/hppa/elf/start.S glibc-2.10.1/ports/sysdeps/hppa/elf/start.S