Merge branch 'master' into paul-encapsulating-main-and-curses

Makefile

@@ -11,10 +11,10 @@ CXX = g++					# compiler
 CXXFLAGS = -std=c++20 -g -Wall -MMD -lncurses -O0			# compiler flags
 MAKEFILE_NAME = ${firstword ${MAKEFILE_LIST}}	# makefile name
 
-SOURCES = $(wildcard *.cc)			# source files (*.cc)
+SOURCES = $(wildcard src/*.cc)			# source files (*.cc)
 OBJECTS = ${SOURCES:.cc=.o}			# object files forming executable
 DEPENDS = ${OBJECTS:.o=.d}			# substitute ".o" with ".d"
-EXEC = cc3k					# executable name
+EXEC	= bin/cc3k					# executable name
 
 ########## Targets ##########