+SOURCE_IMG = $(wildcard img/*.dia)
+PS_IMG = $(SOURCE_IMG:.dia=.ps)
+EPS_IMG = $(SOURCE_IMG:.dia=.eps)
+PDF_IMG = $(SOURCE_IMG:.dia=.pdf)
+SOURCE = $(wildcard sources/*.c) $(wildcard sources/*.h) sources/Makefile
+CODE_C = $(wildcard listati/*.c)
+CODE_H = $(wildcard listati/*.h)
+HTML_C = $(CODE_C:.c=.c.html)
+HTML_H = $(CODE_H:.h=.h.html)