SOURCES = sema1.c sema2.c sema3.c
EXECUTABLES = $(patsubst %.c, %, ${SOURCES} )

all : ${EXECUTABLES}

listsources :
	/bin/ls -l ${SOURCES}

listexec :
	@for mfile in ${EXECUTABLES} ; do \
		if [ -f $$mfile ] ; then \
			/bin/ls -l $$mfile; \
		fi \
	done

clean :
	@/bin/rm -f ${EXECUTABLES}