scripts: remove . from $PATH
Add CT_SanitizePath function which removes entries referring to ., /tmp
and non-existing directories from $PATH, and call it early in the
build script.
If . is in PATH, gcc-4.4.4 build breaks:
[ALL ] checking what assembler to use...
/tmp/build/targets/arm-unknown-linux-uclibcgnueabi/build/gcc-core-static/arm-unknown-linux-uclibcgnueabi/bin/as
...
[ALL ] config.status: creating as
i.e. "as" is supposed to be the arm-unknown-linux-uclibcgnueabi cross assembler,
but config.status creates a local "as" script which is calling the
host assembler.
Signed-off-by: Johannes Stezenbach <js@sig21.net>
[Yann E. MORIN: style fixes + explanations]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 20dd8cef1c8adff0aa3e78ae6d7acfbc45ed5a83)
1 --- glibc-2.7/sysdeps/unix/sysv/linux/kernel-features.h 2007-08-14 06:21:09.000000000 +0300
2 +++ glibc-2.7/sysdeps/unix/sysv/linux/kernel-features.h.new 2008-07-23 07:05:20.000000000 +0300
4 and on Alpha just after 2.6.22-rc1. */
5 #if __LINUX_KERNEL_VERSION >= 0x020611 \
6 && ((!defined __sh__ && !defined __alpha__) \
7 - || (__LINUX_KERNEL_VERSION >= 0x020613 && defined __sh__) \
8 - || (__LINUX_KERNEL_VERSION >= 0x020617 && defined __alpha__))
9 + || (__LINUX_KERNEL_VERSION >= 0x020613 && defined __sh__))
10 # define __ASSUME_ATFCTS 1