From 45108438ce39101e8e9ff9230b5152f64d89326c Mon Sep 17 00:00:00 2001
From: Jelle Raaijmakers <jelle@gmta.nl>
Date: Thu, 24 Nov 2022 11:44:09 +0100
Subject: [PATCH] Ports: Fix warning when building with `useconfigure="false"`

When building a port with `useconfigure="false"`, the `do_configure`
function invokes a `buildstep` with multiple positional arguments as the
command to execute.

It then tests whether the positional arguments evaluate to an emtpy
string, but could fail when multiple positional arguments were provided.
This resulted in the following warning when building the Composer port,
for example:

  ../.port_include.sh: line 16: [: echo: binary operator expected

Prevent this warning by testing against the number of positional
arguments, instead.
---
 Ports/.port_include.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Ports/.port_include.sh b/Ports/.port_include.sh
index bf9e58a009..0e14c0b8a7 100755
--- a/Ports/.port_include.sh
+++ b/Ports/.port_include.sh
@@ -13,7 +13,7 @@ export MAKEJOBS="${MAKEJOBS:-$(nproc)}"
 buildstep() {
     local buildstep_name=$1
     shift
-    if [ -z "$@" ]; then
+    if [ "$#" -eq '0' ]; then
         "${buildstep_name}"
     else
         "$@"