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 diff -durN gcc-4.4.0.orig/gcc/builtins.c gcc-4.4.0/gcc/builtins.c
2 --- gcc-4.4.0.orig/gcc/builtins.c 2009-03-30 19:42:27.000000000 +0200
3 +++ gcc-4.4.0/gcc/builtins.c 2009-05-27 21:38:01.000000000 +0200
5 trampolines_created = 1;
6 INITIALIZE_TRAMPOLINE (r_tramp, r_func, r_chain);
8 + if (warn_trampolines)
9 + warning (OPT_Wtrampolines, "generating trampoline in object (requires executable stack)");
14 diff -durN gcc-4.4.0.orig/gcc/common.opt gcc-4.4.0/gcc/common.opt
15 --- gcc-4.4.0.orig/gcc/common.opt 2009-03-28 18:28:45.000000000 +0100
16 +++ gcc-4.4.0/gcc/common.opt 2009-05-27 21:38:01.000000000 +0200
18 Common Var(warn_type_limits) Init(-1) Warning
19 Warn if a comparison is always true or always false due to the limited range of the data type
22 +Common Var(warn_trampolines) Init(1)
23 +Warn whenever a trampoline is generated
26 Common Var(warn_uninitialized) Warning
27 Warn about uninitialized automatic variables