diff -Nur ion-3ds-20060519.orig/system.mk ion-3ds-20060519/system.mk
--- ion-3ds-20060519.orig/system.mk	2006-05-18 18:06:53.000000000 -0500
+++ ion-3ds-20060519/system.mk	2006-05-18 23:51:23.000000000 -0500
@@ -7,7 +7,7 @@
 ## Installation paths
 ##
 
-PREFIX=/usr/local
+PREFIX=/usr
 
 # Unless you are creating a package conforming to some OS's standards, you
 # probably do not want to modify the following directories:
@@ -15,7 +15,7 @@
 # Main binaries
 BINDIR=$(PREFIX)/bin
 # Configuration .lua files
-ETCDIR=$(PREFIX)/etc/ion3
+ETCDIR=/etc/X11/ion3
 # Some .lua files and ion-* shell scripts
 SHAREDIR=$(PREFIX)/share/ion3
 # Manual pages
@@ -27,11 +27,11 @@
 # Nothing at the moment
 LIBDIR=$(PREFIX)/lib
 # Modules
-MODULEDIR=$(LIBDIR)/ion3/mod
+MODULEDIR=$(LIBDIR)/ion3/mod
 # Compiled Lua source code
 LCDIR=$(LIBDIR)/ion3/lc
 # ion-completefile (does not belong in SHAREDIR being a binary file)
-EXTRABINDIR=$(LIBDIR)/ion3/bin
+EXTRABINDIR=$(LIBDIR)/ion3/bin
 # For ion-completeman system-wide cache
 VARDIR=/var/cache/ion3
 # Message catalogs
@@ -56,18 +56,18 @@
 
 # If you have installed Lua 5.1 from the official tarball without changing
 # paths, this should do it.
-LUA_DIR=/usr/local
-LUA_LIBS = -L$(LUA_DIR)/lib -llua
-LUA_INCLUDES = -I$(LUA_DIR)/include
-LUA=$(LUA_DIR)/bin/lua
-LUAC=$(LUA_DIR)/bin/luac
+#LUA_DIR=/usr/local
+#LUA_LIBS = -L$(LUA_DIR)/lib -llua
+#LUA_INCLUDES = -I$(LUA_DIR)/include
+#LUA=$(LUA_DIR)/bin/lua
+#LUAC=$(LUA_DIR)/bin/luac
 
 # If you are using the Debian packages, the following settings should be
 # what you want.
-#LUA_LIBS=`pkg-config --libs lua5.1`
-#LUA_INCLUDES=`pkg-config --cflags lua5.1`
-#LUA=`which lua5.1`
-#LUAC=`which luac5.1`
+LUA_LIBS=`pkg-config --libs lua`
+LUA_INCLUDES=`pkg-config --cflags lua`
+LUA=`which lua`
+LUAC=`which luac`
 
 
 ##
@@ -107,7 +107,7 @@
 # asprintf and vasprintf in the c library. (gnu libc has.)
 # If HAS_SYSTEM_ASPRINTF is not defined, an implementation
 # in sprintf_2.2/ is used.
-#HAS_SYSTEM_ASPRINTF=1
+HAS_SYSTEM_ASPRINTF=1
 
 
 # If you're on an archaic system (such as relatively recent *BSD releases)
@@ -144,14 +144,14 @@
 
 #C89_SOURCE=-ansi
 
-#POSIX_SOURCE=-D_POSIX_SOURCE
+POSIX_SOURCE=-D_POSIX_SOURCE
 
 # Most systems
-#XOPEN_SOURCE=-D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED
+XOPEN_SOURCE=-D_XOPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED
 # SunOS, (Irix)
 #XOPEN_SOURCE=-D__EXTENSIONS__
 
-#C99_SOURCE=-std=c99 -DCF_HAS_VA_COPY
+C99_SOURCE=-std=c99 -DCF_HAS_VA_COPY
 
 # The -DCF_HAS_VA_COPY option should allow for some optimisations, and 
 # in some cases simply defining