[PATCH 14/22] ver_linux: ldd, look for numerical input, not field number

Alexander Kapshuk
2015-10-12T18:41:05Z

Proposed implementation also eliminates the necessity to invoke 'head' + 'awk'.

The '-v' flag either seems to have been deprecated in some distros, e.g. Gentoo, or is an alias for '--version' in others. The proposed implementation uses the latter flag only.

Signed-off-by: Alexander Kapshuk <alexander.kapshuk@gmail.com>
---
scripts/ver_linux | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/scripts/ver_linux b/scripts/ver_linux
index 909d039..a7d0eca 100755
--- a/scripts/ver_linux
+++ b/scripts/ver_linux
@@ -114,8 +114,12 @@ sed '
q
' /proc/self/maps

-ldd -v > /dev/null 2>&1 && ldd -v || ldd --version |head -n 1 | awk \
-'NR==1{print "Dynamic linker (ldd) ", $NF}'
+ldd --version 2>&1 |
+awk '/^ldd/{
+ match($0, /[0-9]+([.]?[0-9]+)+/)
+ printf("Dynamic linker (ldd)\t%s\n",
+ substr($0,RSTART,RLENGTH))
+}'

ls -l /usr/lib/libg++.so /usr/lib/libstdc++.so 2>/dev/null | awk -F. \
'{print "Linux C++ Library " $4"."$5"."$6}'
--
2.4.9