doc: add required python versions

[dpdk.git] / scripts / relpath.sh

diff --git a/scripts/relpath.sh b/scripts/relpath.sh
index 00030e5..4ff4671 100755 (executable)
--- a/scripts/relpath.sh
+++ b/scripts/relpath.sh
@@ -43,8 +43,13 @@ if [ $# -ne 2 ]; then
        exit 1
 fi
 
-REL1=${1#/}
-REL2=${2#/}
+# get the real absolute path, derefencing symlinks
+ABS1=$(readlink -f $1)
+ABS2=$(readlink -f $2)
+
+# remove leading slash
+REL1=${ABS1#/}
+REL2=${ABS2#/}
 
 left1=${REL1%%/*}
 right1=${REL1#*/}
@@ -56,6 +61,8 @@ right2=${REL2#*/}
 prev_right2=$REL2
 prev_left2=
 
+prefix=
+
 while [ "${right1}" != "" -a "${right2}" != "" ]; do
 
        if [ "$left1" != "$left2" ]; then