linux-kernel - [PATCH] ver

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Message-ID: <CAJ1xhMXRECCc460TPnHVU+1zCZRAgkMVjOvSOgbq0SUn9Ou_Kg@mail.gmail.com>
Date:	Thu, 1 Oct 2015 21:43:35 +0300
From:	Alexander Kapshuk <alexander.kapshuk@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Greg KH <gregkh@...uxfoundation.org>
Subject: [PATCH] ver_linux: gcc.patch

Using 'awk' here is a bit of an overkill. Should the output of 'gcc
-dumpversion' vary on another disto, or change overtime, it may no longer
be available at field 1, as relied on by the current implementation.
I believe 'sed' offers greater flexibility here in terms of processing
varying output as well as being more light-weight.

Tested on:
Gentoo Linux
Debian 6.0.10
Oracle Linux Server release 7.1
Arch Linux
openSuSE 13.2

Signed-off-by: Alexander Kapshuk <alexander.kapshuk@...il.com>
---

--- linux/scripts/ver_linux.orig    2015-08-30 21:34:09.000000000 +0300
+++ linux/scripts/ver_linux    2015-09-30 22:30:23.564140555 +0300
@@ -11,8 +11,11 @@
 uname -a
 echo ' '

-gcc -dumpversion 2>&1| awk \
-'NR==1{print "Gnu C                 ", $1}'
+gcc -dumpversion 2>&1 |
+sed '
+    /^[0-9\.]*$/!d
+    s/^/GNU C\t\t\t/
+'

 make --version 2>&1 | awk -F, '{print $1}' | awk \
       '/GNU Make/{print "Gnu make              ",$NF}'
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