ver_linux: make --version, use regex to find version number

Rely on regex to find the version number, rather than a field number.
Reduce the number of 'awk' invocations from two to one.

Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/scripts/ver_linux b/scripts/ver_linux
index af6467e..31c0e4d 100755 (executable)
--- a/scripts/ver_linux
+++ b/scripts/ver_linux
@@ -18,8 +18,12 @@ awk '/[0-9]+([.]?[0-9]+)+/ && !/not found$/{
        substr($0,RSTART,RLENGTH))
 }'
 
-make --version 2>&1 | awk -F, '{print $1}' | awk \
-      '/GNU Make/{print "Gnu make              ",$NF}'
+make --version 2>&1 |
+awk '/GNU Make/{
+       match($0, /[0-9]+([.]?[0-9]+)+/)
+       printf("GNU Make\t\t%s\n",
+       substr($0,RSTART,RLENGTH))
+}'
 
 echo "binutils               $(ld -v | egrep -o '[0-9]+\.[0-9\.]+')"