<!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/3.26.0"> </HEAD> <BODY> On Mon, 2010-08-23 at 17:59 -0500, Pedro Parra wrote: <BLOCKQUOTE TYPE=CITE> It seems as if the pkgconfig packages is not installed but I believe it is installed, since I can type pkg-config --help and I get the help menu. I can see all the .pc files from different libraries under /usr/lib/pkgconfig </BLOCKQUOTE> Perhaps you have an old version or a damaged installation. I have version 0.22 but version 0.18.1 should do. The macros are in /usr/share/aclocal/pkg.m4 on a Debian Linux distro. All X packages would fail they all use those statements. You should be able to display the C flags: <BLOCKQUOTE> <PRE> pkg-config --print-errors --cflags xt </PRE> </BLOCKQUOTE> See <A HREF="http://wiki.x.org/wiki/ModularDevelopersGuide#RequiredTools">http://wiki.x.org/wiki/ModularDevelopersGuide#RequiredTools</A> for toolchain requirements. </BODY> </HTML>