comments for a pmake newb

[Joseph Mingrone]

I'm porting a program that uses a simple GNU make file, but I'm thinking
about replacing the make file to remove the devel/gmake dependency.  I
don't foresee many upstream changes that will make this an issue.  Is
this a bad/good idea?  Are there any example ports that do this?  My
searching didn't turn any up.

My simple make file replacement is below.  If you have any suggestions
to offer, I'm open to criticism.

Thanks,

Joseph

PROG = blah
SRCS != echo *.c
OBJS = $(SRCS:.c=.o)

CFLAGS  = -D_POSIX_SOURCE -D_POSIX_C_SOURCE=200809L -D_THREAD_SAFE -D_XOPEN_SOURCE=700 -pedantic -std=c11 -Wall
INC	= -I/usr/local/include
LDFLAGS = -L/usr/local/lib
LDLIBS  = -lX11

.ifmake debug
   CFLAGS += -DDEBUG -g -O0
.else
   CFLAGS += -DNDEBUG -O3
.endif

${PROG}: ${OBJS}
	${CC} ${CFLAGS} ${LDFLAGS} ${LDLIBS} $(.ALLSRC) -o $(.TARGET)

${OBJS}: ${SRCS}
	${CC} -c ${CFLAGS} ${INC} ${SRCS}

debug: ${PROG}

clean:
	rm -f ${PROG} *.o *.core