Update autogen.sh to one that does objdir != srcdir
Update autogen.sh to one that does objdir != srcdir

stapelberg/libxcb,topcat/xcb-win32,topcat/xcb-win32,topcat/xcb-win32,stapelberg/libxcb,OpenInkpot-archive/iplinux-libxcb,OpenInkpot-archive/iplinux-libxcb,topcat/xcb-win32,topcat/xcb-win32,OpenInkpot-archive/iplinux-libxcb,stapelberg/libxcb