diff -Naur RULES.gentoo RULES.gentoo
--- /dev/null		1969-12-31 19:00:00.000000000 -0500
+++ ./RULES.gentoo	2008-01-21 06:41:41.000000000 -0500
@@ -0,0 +1,82 @@
+#--------------------------------------------------------
+# Configuration file for the Makefiles of xd3d          |
+# François Jouve 2005 (Francois.Jouve@Polytechnique.fr) |
+#--------------------------------------------------------
+
+#
+# Modifiable parameters
+#
+
+#
+# Root directory of the distribution
+#
+#XD3D_DIR = $(HOME)/xd3d-8.1.0
+XD3D_DIR = Please_Configure
+
+#
+# Install directory
+#
+#INSTALL_DIR = /usr/local/bin
+INSTALL_DIR = ##D##/usr/bin
+
+#
+# Location of the X11 lib (libX11.a)
+#
+#LIBX11 = /usr/X11R6/lib
+LIBX11 = /usr/##lib##/
+
+#
+# Language parameter
+#
+#LANGUAGE = FRANCAIS
+#LANGUAGE = ENGLISH
+LANGUAGE = ENGLISH
+
+#
+# Max memory for xd3d (MBytes)
+#
+#MEMORY_XD3D = 64
+MEMORY_XD3D = 64
+
+#
+# Fortran compiler
+#
+COMPILF = $(FC)
+
+#
+# C compiler
+#
+COMPILC = $(CC)
+RANLIB  = $(MY_RANLIB)
+AR      = $(MY_AR) r
+STRIP   = echo $@
+
+#
+# Options for the Fortran compiler
+#
+OPTF = $(FFLAGS)
+#
+# Options for the C compiler
+#
+OPTC = $(CFLAGS)
+
+#-----------------------------------------------
+# You should not need to change anything below !
+#-----------------------------------------------
+
+SRCDIR = $(XD3D_DIR)/src
+BINDIR = $(XD3D_DIR)/bin
+LIBDIR = $(XD3D_DIR)/lib
+SUFF   =
+INCF   = -I$(XD3D_DIR)/src/include
+INCC   = -I$(LIBX11)/../include
+
+LINK      = $(COMPILF) $(LDFLAGS) -o
+LINKOPT   = -lc -lm
+LINKOPTX  = -L$(LIBX11) -lX11 -lXpm -lc -lm
+LIBRAIRIE = $(LIBDIR)/question_lib.a
+MYXLIB    = $(LIBDIR)/my_Xlib.a
+INTERP    = $(LIBDIR)/interp.a
+
+.f.o: ; $(COMPILF) $(INCF) $(OPTF) -c $*.f
+.c.o: ; $(COMPILC) $(INCC) $(OPTC) -D$(LANGUAGE) -c $*.c