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/uclibc/90_all_305-libmudflap-susv3-legacy.patch
2 diff -durN gcc-4.3.1.orig/libmudflap/mf-hooks2.c gcc-4.3.1/libmudflap/mf-hooks2.c
3 --- gcc-4.3.1.orig/libmudflap/mf-hooks2.c 2005-09-23 23:58:39.000000000 +0200
4 +++ gcc-4.3.1/libmudflap/mf-hooks2.c 2008-06-10 14:59:05.000000000 +0200
7 TRACE ("%s\n", __PRETTY_FUNCTION__);
8 MF_VALIDATE_EXTENT(s, n, __MF_CHECK_WRITE, "bzero region");
15 TRACE ("%s\n", __PRETTY_FUNCTION__);
16 MF_VALIDATE_EXTENT(src, n, __MF_CHECK_READ, "bcopy src");
17 MF_VALIDATE_EXTENT(dest, n, __MF_CHECK_WRITE, "bcopy dest");
18 - bcopy (src, dest, n);
19 + memmove (dest, src, n);
24 TRACE ("%s\n", __PRETTY_FUNCTION__);
25 MF_VALIDATE_EXTENT(s1, n, __MF_CHECK_READ, "bcmp 1st arg");
26 MF_VALIDATE_EXTENT(s2, n, __MF_CHECK_READ, "bcmp 2nd arg");
27 - return bcmp (s1, s2, n);
28 + return memcmp (s1, s2, n);
33 size_t n = strlen (s);
34 TRACE ("%s\n", __PRETTY_FUNCTION__);
35 MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "index region");
36 - return index (s, c);
37 + return strchr (s, c);
42 size_t n = strlen (s);
43 TRACE ("%s\n", __PRETTY_FUNCTION__);
44 MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "rindex region");
45 - return rindex (s, c);
46 + return strrchr (s, c);
49 /* XXX: stpcpy, memccpy */