Improve (POSIX-wise) determination of bashh version.

1 files changed, 2 insertions, 2 deletions

diff --git a/configure b/configure
index d591dc7..125908e 100755
--- a/configure
+++ b/configure
@@ -123,8 +123,8 @@ fi
 
 # Check bash is present, and at least version 3.0
 [ -x /bin/bash ] || do_error "bash 3.0 or above was not found in /bin/bash"
-bash_version=$(/bin/bash --version |head -n 1 |cut -d ' ' -f 4)
-bash_major=$(echo "${bash_version}" |sed -e 's/\..*//g;')
+bash_version=$(/bin/bash --version |sed -r -e '2,$d' -e 's/.* version ([[:digit:]]+).*/\1/;')
+bash_major=${bash_version%%.*}
 [ ${bash_major} -ge 3 ] || do_error "bash 3.0 or above is needed (found ${bash_version})"
 
 sed -r -e "s,@@BINDIR@@,${BINDIR},g;"   \