Quartz fix: ut2004 makes a 2D window for the splash screen, which sets the screen surface's pixels field. Then we tear down that video mode and create a GL context, and the Quartz target isn't resetting the pixels field to NULL. When you just create a GL window, the structure is memset'd to zero the first time through, so unless you hit ut2004's codepath, you won't see the bug. :) Without this patch, quitting a windowed ut2003/ut2004 game makes the OS dump a warning about a bogus free() to stderr, but it doesn't actually crash. All we need to do is explicitly initialize the current->pixels field.

#!/bin/sh
#
# libtool assumes that the compiler can handle the -fPIC flag
# This isn't always true (for example, nasm can't handle it)
command=""
while [ $# -gt 0 ]; do
    case "$1" in
        -?PIC)
            # Ignore -fPIC and -DPIC options
            ;;
        *)
            command="$command $1"
            ;;
    esac
    shift
done
echo $command
exec $command