termux-packages/packages/wireguard-tools/android.c.patch

--- ../android.c.orig	2020-05-15 19:44:11.410344718 +0200
+++ ./src/wg-quick/android.c	2020-05-15 21:42:30.220908645 +0200
@@ -615,12 +615,12 @@
 		return;
 
 	args[0] = "su";
-	args[1] = "-p";
-	args[2] = "-c";
+	args[1] = "-c";
+	args[2] = "PATH=@TERMUX_PREFIX@/bin:/system/bin";
 	memcpy(&args[3], argv, argc * sizeof(*args));
 	args[argc + 3] = NULL;
 
-	printf("[$] su -p -c ");
+	printf("[$] su PATH=@TERMUX_PREFIX@/bin:/system/bin ");
 	for (int i = 0; i < argc; ++i)
 		printf("%s%c", argv[i], i == argc - 1 ? '\n' : ' ');