scripts: remove . from $PATH
Add CT_SanitizePath function which removes entries referring to ., /tmp
and non-existing directories from $PATH, and call it early in the
build script.
If . is in PATH, gcc-4.4.4 build breaks:
[ALL ] checking what assembler to use...
/tmp/build/targets/arm-unknown-linux-uclibcgnueabi/build/gcc-core-static/arm-unknown-linux-uclibcgnueabi/bin/as
...
[ALL ] config.status: creating as
i.e. "as" is supposed to be the arm-unknown-linux-uclibcgnueabi cross assembler,
but config.status creates a local "as" script which is calling the
host assembler.
Signed-off-by: Johannes Stezenbach <js@sig21.net>
[Yann E. MORIN: style fixes + explanations]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 20dd8cef1c8adff0aa3e78ae6d7acfbc45ed5a83)
1 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/08_all_gcc-4.1-cross-compile.patch
2 Some notes on the 'bootstrap with or without libc headers' debate:
3 http://linuxfromscratch.org/pipermail/lfs-dev/2005-July/052409.html
4 http://gcc.gnu.org/ml/gcc/2005-07/msg01195.html
6 diff -durN gcc-4.3.2.orig/gcc/configure gcc-4.3.2/gcc/configure
7 --- gcc-4.3.2.orig/gcc/configure 2008-08-01 11:51:03.000000000 +0200
8 +++ gcc-4.3.2/gcc/configure 2008-09-23 19:39:43.000000000 +0200
9 @@ -13442,7 +13442,7 @@
10 | powerpc*-*-*,powerpc64*-*-*)
11 CROSS="$CROSS -DNATIVE_CROSS" ;;
13 -elif test "x$TARGET_SYSTEM_ROOT" != x; then
14 +elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then
15 SYSTEM_HEADER_DIR=$build_system_header_dir
18 diff -durN gcc-4.3.2.orig/gcc/configure.ac gcc-4.3.2/gcc/configure.ac
19 --- gcc-4.3.2.orig/gcc/configure.ac 2008-08-01 11:51:03.000000000 +0200
20 +++ gcc-4.3.2/gcc/configure.ac 2008-09-23 19:39:43.000000000 +0200
22 | powerpc*-*-*,powerpc64*-*-*)
23 CROSS="$CROSS -DNATIVE_CROSS" ;;
25 -elif test "x$TARGET_SYSTEM_ROOT" != x; then
26 +elif test "x$TARGET_SYSTEM_ROOT" != x -o $build != $host; then
27 SYSTEM_HEADER_DIR=$build_system_header_dir
30 diff -durN gcc-4.3.2.orig/gcc/unwind-dw2.c gcc-4.3.2/gcc/unwind-dw2.c
31 --- gcc-4.3.2.orig/gcc/unwind-dw2.c 2007-07-25 20:14:57.000000000 +0200
32 +++ gcc-4.3.2/gcc/unwind-dw2.c 2008-09-23 19:39:43.000000000 +0200
38 #ifdef MD_UNWIND_SUPPORT
39 #include MD_UNWIND_SUPPORT
43 /* Extract any interesting information from the CIE for the translation
44 unit F belongs to. Return a pointer to the byte after the augmentation,