From d885e5ccf4408450dce1973ae9e06453b3a4de60 Mon Sep 17 00:00:00 2001
From: asvitkine <>
Date: Sun, 22 Jun 2008 20:30:12 +0000
Subject: [PATCH] [patch from Kelvin Delbarre] SDL's Quartz video
 implementation maps command clicks to right-clicks and option-clicks to
 middle-clicks, a feature intended for Mac users with single-button mice who
 are running SDL-based games that require a multi-button mouse. This is
 unhelpful in SheepShaver, where we want command-clicks and option-clicks to
 be passed through unchanged to the emulated Mac OS. We can disable the
 unwanted behavior by setting an environment variable SDL_HAS3BUTTONMOUSE
 intended for this very purpose.

A similar change in main_windows.cpp is NOT required, because only the Quartz
video implementation is involved.

By SDL convention, putenv is used in preference to setenv, although for Unix
platforms it doesn't matter.
---
 SheepShaver/src/Unix/main_unix.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/SheepShaver/src/Unix/main_unix.cpp b/SheepShaver/src/Unix/main_unix.cpp
index d7329e2c..e9a8aea9 100644
--- a/SheepShaver/src/Unix/main_unix.cpp
+++ b/SheepShaver/src/Unix/main_unix.cpp
@@ -372,8 +372,11 @@ int main(int argc, char **argv)
 	bool memory_mapped_from_zero;
 
 #ifdef USE_SDL_VIDEO
-	// don't let SDL block the screensaver
-	setenv("SDL_VIDEO_ALLOW_SCREENSAVER", "1", 1);
+	// Don't let SDL block the screensaver
+	putenv("SDL_VIDEO_ALLOW_SCREENSAVER=1");
+
+	// Make SDL pass through command-clicks and option-clicks unaltered
+	putenv("SDL_HAS3BUTTONMOUSE=1");
 #endif
 
 	// Initialize variables