autogen.sh
author Sam Lantinga <slouken@libsdl.org>
Sat, 28 Jun 2003 17:27:33 +0000
changeset 638 b0108e9dea53
parent 343 9430ba1a19f3
child 1142 c7376efecdb5
permissions -rwxr-xr-x
Date: Sun, 11 May 2003 19:59:06 +0300 From: Pasi K?rkk?inen Subject: [PATCH] fix SDL OpenGL segfault with DRI/Mesa drivers and Glew Hello! The attached patch fixes a bug in SDL which causes SDL to crash in X11_GL_Shutdown() if you are using DRI/Mesa drivers AND glew (http://glew.sf.net). The bug is caused by a namespace collision affecting dlsym() to fetch wrong pointer for glXReleaseBuffersMESA() (uninitialized pointer from glew because the extension is NOT supported by the driver) and then SDL calling it in X11_GL_Shutdown(). SDL should check if the glXReleaseBuffersMESA() is really supported by the driver (from the extensions string) before calling it. Attached patch adds extension string parsing to check if glXReleaseBuffersMESA() is really supported (and this way prevents the segfault). Availability of the extensions should be _always_ checked from the extensions string rather than using dlsym()! Please add it to the next version of SDL. Thanks to gltron and author of glew to help fixing this.

#!/bin/sh
#
echo "Generating build information using aclocal, automake and autoconf"
echo "This may take a while ..."

# Touch the timestamps on all the files since CVS messes them up
directory=`dirname $0`
touch $directory/configure.in

# Regenerate configuration files
aclocal
automake --foreign --include-deps --add-missing --copy
autoconf
(cd test; aclocal; automake --foreign --include-deps --add-missing --copy; autoconf)

# Run configure for this platform
#./configure $*
echo "Now you are ready to run ./configure"