Update build system

config

@@ -0,0 +1,36 @@
+# libutf8/config
+# kate: replace-trailing-space-save true; space-indent true; tab-width 4;
+# vim: syntax=sh:expandtab:ts=4:sw=4
+#
+#  (c)2009, Laurence Withers, <l@lwithers.me.uk>.
+#  Released under the GNU GPLv3. See file COPYING or
+#  http://www.gnu.org/copyleft/gpl.html for details.
+#
+# This file contains options used to build libutf8.
+
+
+# PREFIX is the most important option. Many other paths are derived from it, as follows:
+#
+#   PREFIX      | /                 | /usr              | /usr/local        | /opt/*
+#   ------------+-------------------+-------------------+-------------------+-----------------
+#   BINDIR      | /bin              | /usr/bin          | /usr/local/bin    | /opt/*/bin
+#   SBINDIR     | /sbin             | /usr/sbin         | /usr/local/sbin   | /opt/*/sbin
+#   LIBDIR      | /lib              | /usr/lib          | /usr/local/lib    | /opt/*/lib
+#   INCLUDEDIR  | /usr/include      | /usr/include      | /usr/local/include| /opt/*/include
+#   CONFIGDIR   | /etc              | /etc              | /usr/local/etc    | /etc/opt/*
+#   VARDIR      | /var              | /var              | /var              | /var/opt/*
+#   SHAREDIR    | /usr/share        | /usr/share        | /usr/local/share  | /opt/*/share
+#   DOCSDIR     | /usr/share/doc    | /usr/share/doc    | /usr/local/share/doc, /opt/*/doc
+#   WEBDIR      | /srv/http         | /srv/http         | /srv/http         | /opt/*/http
+#
+# Specific notes:
+#   When installing, all paths are prepended with INSTALL_PREFIX.
+#   Any parameter can be overridden by setting an environment variable.
+#   CGIDIR is set to ${WEBDIR}/cgi-bin .
+#
+[ -z "${PREFIX}" ] && PREFIX="/usr/local"
+source "scripts/paths"
+
+# Project-specific variables below.
+[ -z "${CC}" ] && CC="gcc"
+[ -z "${CFLAGS}" ] && CFLAGS="-g -O2 -W -Wall"