run-docker.sh: Work around mac readlink

diff --git a/scripts/run-docker.sh b/scripts/run-docker.sh
index e0400e1..4bbc003 100755 (executable)
--- a/scripts/run-docker.sh
+++ b/scripts/run-docker.sh
@@ -2,7 +2,12 @@
 set -e -u
 
 HOME=/home/builder
-REPOROOT="$(dirname $(readlink -f $0))/../"
+if [ `uname` = Darwin ]; then
+       # Workaround for mac readlink not supporting -f.
+       REPOROOT=$PWD
+else
+       REPOROOT="$(dirname $(readlink -f $0))/../"
+fi
 
 IMAGE_NAME=termux/package-builder
 CONTAINER_NAME=termux-package-builder