From a472ceee2b260970c0d21c41d7c8352e6792585c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rainer=20M=C3=BCller?= <raimue@macports.org>
Date: Sat, 19 Mar 2016 18:13:09 +0000
Subject: [PATCH] mpbb: skip install-deps if port has no deps

If a port does not have any dependencies, the port command fails:
$ port install depof:bzip2
Error: No ports matched the given expression

Check for the list of dependencies first and skip this step if it is empty.

git-svn-id: https://svn.macports.org/repository/macports/contrib/mp-buildbot@146894 d073be05-634f-4543-b044-5fe20cf6d1d6
---
 mpbb-install-dependencies | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mpbb-install-dependencies b/mpbb-install-dependencies
index 6dd91e2..18dfefd 100644
--- a/mpbb-install-dependencies
+++ b/mpbb-install-dependencies
@@ -15,6 +15,11 @@ install-dependencies() {
         return 1
     fi
 
+    # skip if the port has no dependencies
+    if [ -z "$(${option_prefix}/bin/port echo depof:${option_port})" ]; then
+        return 0
+    fi
+
     if ! "${option_prefix}/bin/port" -d install --unrequested depof:"${option_port}"; then
 
         echo "Build failed, cleaning up..."