+currently supports, including iso10646-1 encoded fonts for use with
+the mule-unicode charsets. The font files should also be usable with
+older X releases. Note that XFree 4 contains many iso10646-1 fonts
+with minimal character repertoires, which can cause problems -- see
+etc/PROBLEMS.
+
+BDF Unicode fonts etl-unicode.tar.gz are available from
+<URL:ftp://ftp.x.org/contrib/fonts/> and
+<URL:ftp://ftp.xfree86.org/pub/mirror/X.Org/contrib/fonts/>. These
+fonts can also be used by ps-print and ps-mule to print Unicode
+characters.
+
+Finally, the Web pages <URL:http://www.nongnu.org/freefont/index.html>
+and <URL:http://www.nongnu.org/freefont/resources.html> list a large
+number of free Unicode fonts.
+
+* GNU/Linux development packages
+
+Many GNU/Linux systems do not come with development packages by
+default; they just include the files that you need to run Emacs, but
+not those you need to compile it. For example, to compile Emacs with
+X11 support, you may need to install the special `X11 development'
+package. For example, in April 2003, the package names to install
+were `XFree86-devel' and `Xaw3d-devel' on Red Hat. On Debian, the
+packages necessary to build the installed version should be
+sufficient; they can be installed using `apt-get build-dep emacs21' in
+Debian 3 and above.