<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 TRANSITIONAL//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=UTF-8"> <META NAME="GENERATOR" CONTENT="GtkHTML/3.32.2"> </HEAD> <BODY> On Tue, 2011-06-14 at 10:56 +0200, Diego Elio Pettenò wrote: <BLOCKQUOTE TYPE=CITE> <PRE> Il giorno lun, 13/06/2011 alle 19.43 -0400, Gaetan Nadon ha scritto: > > Using m4 to check for macro defined by the xserver to ensure it is > installed > will work as long as the macro is not removed. The preferred way of > checking > for dependencies is to use PKG_CHECK_MODULE. Different moment to check for them: - PKG_CHECK_MODULE check presence when running ./configure - m4_ifndef when autoconf is executed. If you build autotools for the package on a system that has no xorg-server installed, you'll receive a broken configure script, thus why I wanted to make it explicit that you need to have it around at autoconf time. </PRE> </BLOCKQUOTE> What is the benefit of having: <BLOCKQUOTE> <PRE> autoreconf: running: aclocal -I /home/nadon/xorg/src/inst/share/aclocal --force configure.ac:51: error: must install xorg-server development files before running autoconf/autogen </PRE> </BLOCKQUOTE> over having: <BLOCKQUOTE> <PRE> checking for XORG... no configure: error: Package requirements (xorg-server >= 1.6) were not met: </PRE> </BLOCKQUOTE> Dan is also of the opinion that it is preferable, but I just can't see why. In a distro building world perhaps? One drawback is the m4 test "fails to fail" when the server is uninstalled after synaptics have been configured as the XORG macro is cached. The following PKG_CHECK_MODULE will stop on error, however. Maybe this is the way it should work. BTW, the randr extension is not optional so this whole test is useless, but that is a separate discussion :-) I am taking a hard look at this because when I find something that is better, I apply it to other modules. This is a lot of work, so I need to be really sure. <BLOCKQUOTE TYPE=CITE> <PRE> -- Diego Elio Pettenò — Flameeyes <A HREF="http://blog.flameeyes.eu/">http://blog.flameeyes.eu/</A> _______________________________________________ <A HREF="mailto:xorg-devel@lists.x.org">xorg-devel@lists.x.org</A>: X.Org development Archives: <A HREF="http://lists.x.org/archives/xorg-devel">http://lists.x.org/archives/xorg-devel</A> Info: <A HREF="http://lists.x.org/mailman/listinfo/xorg-devel">http://lists.x.org/mailman/listinfo/xorg-devel</A> </PRE> </BLOCKQUOTE> </BODY> </HTML>