From: Bruce Richardson <bruce.richardson@intel.com>
Date: Mon, 23 Jan 2017 12:11:28 +0000 (+0000)
Subject: buildtools: allow symlinks within a source directory
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=7a514a0070e871f8383c6839b90d2714ecc90e18

buildtools: allow symlinks within a source directory

When creating the symlinks for header files to the include folder, the
relpath script dereferenced all symlinks. This made it impossible to
have file A.h renamed to B.h and then symlinked back to its original
name. This is useful to be able to do when refactoring or reworking
a library. Change this so that we just use the dirname of the path from
readlink, we can use the basename as it was originally, even if it was a
symlink.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
---

diff --git a/buildtools/relpath.sh b/buildtools/relpath.sh
index 4ff4671e93..139b7813e9 100755
--- a/buildtools/relpath.sh
+++ b/buildtools/relpath.sh
@@ -44,7 +44,7 @@ if [ $# -ne 2 ]; then
 fi
 
 # get the real absolute path, derefencing symlinks
-ABS1=$(readlink -f $1)
+ABS1="$(dirname $(readlink -f $1))/$(basename $1)"
 ABS2=$(readlink -f $2)
 
 # remove leading slash