From 0d4f3b67c0bc6c7937f56294baee3f0a76c7a34e Mon Sep 17 00:00:00 2001
From: Trumeet <yuuta@yuuta.moe>
Date: Tue, 28 Dec 2021 11:50:56 -0800
Subject: Compatible with old versions

---
 launcher | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/launcher b/launcher
index b0e72d6..1daed62 100755
--- a/launcher
+++ b/launcher
@@ -26,6 +26,22 @@ if test -e /usr/share/java/minecraft/$VERSION/launcher.fabric.gen; then
 	source /usr/share/java/minecraft/$VERSION/launcher.fabric.gen
 fi
 
+# For old versions
+# https://stackoverflow.com/a/8811800
+contains() {
+	string="$1"
+	substring="$2"
+	if test "${string#*$substring}" != "$string"
+	then
+		return 0
+	else
+		return 1
+	fi
+}
+
+contains "$JVM_ARGS" "-cp" || JVM_ARGS="$JVM_ARGS -cp ${classpath}"
+contains "$JVM_ARGS" "-Djava.library.path=" || JVM_ARGS="$JVM_ARGS -Djava.library.path=${natives_directory}"
+
 mkdir -p $assets_root
 mkdir -p $assets_root/skin
 ln -s /usr/share/minecraft/assets/$assets_index_name/objects $assets_root/objects || true
-- 
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