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 This is a somewhat ordered TODO list:
5 - update versions for every tools...
7 - update and/or upgrade all samples
12 - update newlib (for enhanced bare metal)
13 - confirm existing implementation on targets other than AVR32
14 - try to make it generic, will help for uClibc++
18 - Cygwin target (needs newlib)
19 - so we can build toolchains that generate code for Windows/Cygwin
22 - so we can build toolchains that run natively under Windows/Cygwin
25 - so we can build toolchains that generate code for Windows/Win32
28 - so we can build toolchains that run natively under Windows/Win32
29 (without requiring Cygwin)
35 - check whether we can use newlib under uClinux (?)