Add `--dlsym` option

bin/mangohud.in

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env bash
 
 if [ "$#" -eq 0 ]; then
 	programname=`basename "$0"`
@@ -8,6 +8,11 @@ if [ "$#" -eq 0 ]; then
 	exit 1
 fi
 
+if [ "$1" = "--dlsym" ]; then
+	MANGOHUD_DLSYM=1
+	shift
+fi
+
 MANGOHUD_LIB_NAME="libMangoHud.so"
 
 if [ "$MANGOHUD_DLSYM" = "1" ]; then

data/mangohud.1

@@ -5,7 +5,7 @@
 mangohud \- enable MangoHud on any application
 
 .SH SYNOPSIS
-\fBmangohud\fR COMMAND
+\fBmangohud\fR [--dlsym] COMMAND
 
 .SH DESCRIPTION
 MangoHud is a Vulkan/OpenGL overlay for monitoring FPS, temperatures, CPU/GPU load and more.
@@ -15,7 +15,7 @@ MangoHud can be enabled for Vulkan applications by setting \fBMANGOHUD=1\fR as e
 .br
 To load MangoHud for any application, including OpenGL applications, the \fBmangohud\fR executable can be used. It preloads a library via ld into the application.
 .br
-Note: some OpenGL applications may also need dlsym hooking. This can be done by setting \fBMANGOHUD_DLSYM=1\fR as envrionment variable.
+Note: some OpenGL applications may also need dlsym hooking. This can be done by passing option \fB--dlsym\fR or by setting \fBMANGOHUD_DLSYM=1\fR as envrionment variable.
 
 .SH CONFIG
 MangoHud comes with a config file which can be used to set configuration options globally or per application. The priorities of different config files are: