[RESENT] [PATCH v2] scripts/crosstool-NG.sh.in: patch regex to work with BSD grep
Andreas Bießmann
andreas@biessmann.de
Tue Oct 21 17:20:00 GMT 2014
From: "Jason T. Masker" <jason@masker.net>
BSD grep does not interpret a null alteration. It complains about an
empty sub-expression, e.g.:
$ grep --version && grep -E '^(# |)CT_' .config
grep (BSD grep) 2.5.1-FreeBSD
grep: empty (sub)expression
This patch replaces the null alteration with a zero or once quantifier
which works with both BSD & GNU grep.
$ grep --version && grep -E '^(# )?CT_' .config
grep (BSD grep) 2.5.1-FreeBSD
CT_CONFIGURE_has_xz=y
CT_CONFIGURE_has_svn=y
...
$ ggrep --version && ggrep -E '^(# )?CT_' .config
ggrep (GNU grep) 2.20
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Mike Haertel and others, see
<http://git.sv.gnu.org/cgit/grep.git/tree/AUTHORS>.
CT_CONFIGURE_has_xz=y
CT_CONFIGURE_has_svn=y
...
Signed-off-by: Jason T. Masker <jason@masker.net>
Tested-by: Andreas BieÃmann <andreas@biessmann.de>
---
This is just a resent cause the original message could not be applied
properly. I also add my Tested-by, tested on OS X 10.10.
since v1:
* adopt commit message
Jason's v2/v3 messge:
* Updated patch to also fix change another occurrence, found in
kconfig/kconfig.mk.
kconfig/kconfig.mk | 2 +-
scripts/crosstool-NG.sh.in | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/kconfig/kconfig.mk b/kconfig/kconfig.mk
index cb9f91c..06e022c 100644
--- a/kconfig/kconfig.mk
+++ b/kconfig/kconfig.mk
@@ -38,7 +38,7 @@ defconfig:
# Always be silent, the stdout an be >.config
extractconfig:
@$(awk) 'BEGIN { dump=0; } \
- dump==1 && $$0~/^\[.....\][[:space:]]+(# |)CT_/ { \
+ dump==1 && $$0~/^\[.....\][[:space:]]+(# )?CT_/ { \
$$1=""; \
gsub("^[[:space:]]",""); \
print; \
diff --git a/scripts/crosstool-NG.sh.in b/scripts/crosstool-NG.sh.in
index cd65d5b..53ac552 100644
--- a/scripts/crosstool-NG.sh.in
+++ b/scripts/crosstool-NG.sh.in
@@ -125,7 +125,7 @@ CT_DoLog INFO "Build started ${CT_STAR_DATE_HUMAN}"
# We really need to extract from ,config and not .config.2, as we
# do want the kconfig's values, not our mangled config with arrays.
CT_DoStep DEBUG "Dumping user-supplied crosstool-NG configuration"
-CT_DoExecLog DEBUG ${grep} -E '^(# |)CT_' .config
+CT_DoExecLog DEBUG ${grep} -E '^(# )?CT_' .config
CT_EndStep
CT_DoLog DEBUG "Unsetting and unexporting MAKEFLAGS"
--
1.9.3 (Apple Git-50)
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