From 6fb32b8f8ad6c115e1f244754cbd8612ec774ba3 Mon Sep 17 00:00:00 2001
From: Alyssa Ross <hi@alyssa.is>
Date: Sun, 21 Mar 2021 15:27:37 +0000
Subject: configure: reject invalid arguments

But we preserve the autoconf behaviour of only warning on invalid
options.

    $ ./configure --test
    Warning: unrecognized options: --test

    $ ./configure test
    Error: unexpected argument: test

Message-Id: <20210321193951.21671-1-hi@alyssa.is>
Reviewed-by: Cole Helbling <cole.e.helbling@outlook.com>
---
 configure | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index 38c926c..938db10 100755
--- a/configure
+++ b/configure
@@ -29,8 +29,11 @@ for arg; do
 		prefix="$(printf "%s" "$arg" | cut -d= -f2-)"
 	elif printf "%s" "$arg" | grep -q "^--bindir="; then
 		bindir="$(printf "%s" "$arg" | cut -d= -f2-)"
-	else
+	elif printf "%s" "$arg" | grep -q "^--"; then
 		unrecognized="$unrecognized $arg"
+	else
+		echo "Error: unexpected argument: $arg" >&2
+		exit 64 # EX_USAGE
 	fi
 done
 
-- 
cgit 1.4.1