###############################################################################
# Makefile.nmakebug -- Exposing a curious NMake v3 / v4 bug                   #
# --------------------------------------------------------------------------- #
# NMake can drop one or more assignments when a macro references itself       #
# to build a list and is then subsequently used to compose a derived list.    #
#                                                                             #
# Tests have been done with more than three lines, spaces-no-spaces and what  #
# not, but no precise cause could be determined. It seems that the assignment #
# before the last is dropped most often, but other cases were also found.     #
#                                                                             #
# Anyway:                                                                     #
# NMake: 'MYVAR=$(MYVAR) and some more' is BAD !!                             #
###############################################################################

# Our list of headers -- working method
MYDEPS1=\
one.hpp\
two.hpp\
three.hpp\

# Assign and change extension
MYSRC1=$(MYDEPS1:.hpp=.cpp)

test-works:
	@echo.
	@echo [$@]
	@echo.
	@echo The list below is correct -- independent of method used
	@echo MYDEPS       : $(MYDEPS1)
	@echo.
	@echo AND, the derived list below is also correct, containing 'two.cpp'
	@echo MYSRC        : $(MYSRC1)
	@echo.

# Our list of headers -- failing method
MYDEPS2=
MYDEPS2=$(MYDEPS2) one.hpp
MYDEPS2=$(MYDEPS2) two.hpp
MYDEPS2=$(MYDEPS2) three.hpp

# Assign and change extension
MYSRC2=$(MYDEPS2:.hpp=.cpp)

test-fails:
	@echo.
	@echo [$@]
	@echo.
	@echo The list below is correct -- independent of method used
	@echo MYDEPS       : $(MYDEPS2)
	@echo.
	@echo BUT, the derived list below is now MISSING 'two.cpp' !!!
	@echo MYSRC        : $(MYSRC2)
	@echo.