diff --git a/Fraktalism/.gitignore b/Fraktalism/.gitignore
index 2931b0f..6ae527f 100644
--- a/Fraktalism/.gitignore
+++ b/Fraktalism/.gitignore
@@ -5,9 +5,11 @@ lorentz
 voxelize
 evolvopick
 henon
+essai
 
 WS/*.dat
 WS/*.txt
+WS/*.inc
 
 *.pgm
 *.gif
diff --git a/Fraktalism/Makefile b/Fraktalism/Makefile
index 542f65f..aa9980a 100644
--- a/Fraktalism/Makefile
+++ b/Fraktalism/Makefile
@@ -1,7 +1,7 @@
 
-all:	voxelize evolvopick pickover julia lorentz
+all:	voxelize evolvopick pickover julia lorentz essai
 
-GFOPT  = -Wall -Wextra -time -O -Imods/
+GFOPT  = -Wall -Wextra -time -g -O -Imods/
 
 # ---------------------------------------------
 
@@ -18,6 +18,9 @@ OBJS  = mods/spitpgm.o mods/points3d.o fraktals.o
 
 # ---------------------------------------------
 
+essai:		essai.f90 Makefile $(OBJS)
+	gfortran $(GFOPT) $<  $(OBJS)    -o $@
+
 henon:		henon.f90 Makefile $(OBJS)
 	gfortran $(GFOPT) $<  $(OBJS)    -o $@
 
diff --git a/Fraktalism/essai.f90 b/Fraktalism/essai.f90
new file mode 100644
index 0000000..d4a5dcb
--- /dev/null
+++ b/Fraktalism/essai.f90
@@ -0,0 +1,9 @@
+!-----------------------------------------------------
+program essai
+  use spitpgm
+
+  implicit none
+
+
+!-----------------------------------------------------
+end program