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 Patch pointed to by Ryan ARNOLD on the libc-help ML.
2 See: http://sourceware.org/ml/libc-help/2008-06/msg00063.html
4 Forwarded to crosstool-NG by Ioannis E. VENETIS:
5 See: http://sourceware.org/ml/libc-help/2008-06/msg00063.html
7 GCC 4.3 changed the location of some of the header files. I don't
8 understand why you'd be getting these errors while building GCC since
11 With regard to GLIBC, Roland checked in some changes so that the GLIBC
12 build system could find the new locations of the GCC provided header
15 diff -durN glibc-2.7.orig/configure.in glibc-2.7/configure.in
16 --- glibc-2.7.orig/configure.in 2007-06-08 05:16:36.000000000 +0200
17 +++ glibc-2.7/configure.in 2008-06-24 18:38:46.000000000 +0200
19 # header directory and add that to the list. NOTE: Only does the right
20 # thing on a system that doesn't need fixincludes. (Not presently a problem.)
21 if test -n "$sysheaders"; then
22 - ccheaders=`$CC -print-file-name=include`
23 - SYSINCLUDES="-nostdinc -isystem $ccheaders \
24 + SYSINCLUDES=-nostdinc
25 + for d in include include-fixed; do
26 + i=`$CC -print-file-name="$d"` && test "x$i" != x && test "x$i" != "x$d" &&
27 + SYSINCLUDES="$SYSINCLUDES -isystem $i"
29 + SYSINCLUDES="$SYSINCLUDES \
30 -isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"
31 if test -n "$CXX"; then
32 cxxversion=`$CXX -dumpversion 2>&AS_MESSAGE_LOG_FD` &&
33 diff -durN glibc-2.7.orig/configure glibc-2.7/configure
34 --- glibc-2.7.orig/configure 2008-06-24 18:35:34.000000000 +0200
35 +++ glibc-2.7/configure 2008-06-24 18:38:46.000000000 +0200
36 @@ -5062,8 +5062,12 @@
37 # header directory and add that to the list. NOTE: Only does the right
38 # thing on a system that doesn't need fixincludes. (Not presently a problem.)
39 if test -n "$sysheaders"; then
40 - ccheaders=`$CC -print-file-name=include`
41 - SYSINCLUDES="-nostdinc -isystem $ccheaders \
42 + SYSINCLUDES=-nostdinc
43 + for d in include include-fixed; do
44 + i=`$CC -print-file-name="$d"` && test "x$i" != "x$d" &&
45 + SYSINCLUDES="$SYSINCLUDES -isystem $i"
47 + SYSINCLUDES="$SYSINCLUDES \
48 -isystem `echo $sysheaders | sed 's/:/ -isystem /g'`"
49 if test -n "$CXX"; then
50 cxxversion=`$CXX -dumpversion 2>&5` &&