Makefile


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# dwm - dynamic window manager
#   (C)opyright MMVI-MMVII Anselm R. Garbe

include config.mk

SRC = client.c draw.c event.c main.c tag.c util.c view.c
OBJ = ${SRC:.c=.o}

all: options dwm

options:
	@echo dwm build options:
	@echo "CFLAGS   = ${CFLAGS}"
	@echo "LDFLAGS  = ${LDFLAGS}"
	@echo "CC       = ${CC}"

.c.o:
	@echo CC $<
	@${CC} -c ${CFLAGS} $<

${OBJ}: dwm.h config.h config.mk

config.h:
	@echo creating $@ from config.default.h
	@cp config.default.h $@

dwm: ${OBJ}
	@echo CC -o $@
	@${CC} -o $@ ${OBJ} ${LDFLAGS}
	@strip $@

clean:
	@echo cleaning
	@rm -f dwm ${OBJ} dwm-${VERSION}.tar.gz

dist: clean
	@echo creating dist tarball
	@mkdir -p dwm-${VERSION}
	@cp -R LICENSE Makefile README config.*.h config.mk \
		dwm.1 dwm.h ${SRC} dwm-${VERSION}
	@tar -cf dwm-${VERSION}.tar dwm-${VERSION}
	@gzip dwm-${VERSION}.tar
	@rm -rf dwm-${VERSION}

install: all
	@echo installing executable file to ${DESTDIR}${PREFIX}/bin
	@mkdir -p ${DESTDIR}${PREFIX}/bin
	@cp -f dwm ${DESTDIR}${PREFIX}/bin
	@chmod 755 ${DESTDIR}${PREFIX}/bin/dwm
	@echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
	@mkdir -p ${DESTDIR}${MANPREFIX}/man1
	@sed 's/VERSION/${VERSION}/g' < dwm.1 > ${DESTDIR}${MANPREFIX}/man1/dwm.1
	@chmod 644 ${DESTDIR}${MANPREFIX}/man1/dwm.1

uninstall:
	@echo removing executable file from ${DESTDIR}${PREFIX}/bin
	@rm -f ${DESTDIR}${PREFIX}/bin/dwm
	@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
	@rm -f ${DESTDIR}${MANPREFIX}/man1/dwm.1

.PHONY: all options clean dist install uninstall
# new type to help incrementally scan arrays
container stream:_elem [
  index:num
  data:&:@:_elem
]

def new-stream s:&:@:_elem -> result:&:stream:_elem [
  local-scope
  load-inputs
  return-unless s, null
  result <- new {(stream _elem): type}
  *result <- put *result, index:offset, 0
  *result <- put *result, data:offset, s
]

def rewind in:&:stream:_elem -> in:&:stream:_elem [
  local-scope
  load-inputs
  return-unless in
  *in <- put *in, index:offset, 0
]

def read in:&:stream:_elem -> result:_elem, empty?:bool, in:&:stream:_elem [
  local-scope
  load-inputs
  assert in, [cannot read; stream has no data]
  empty? <- copy false
  idx:num <- get *in, index:offset
  s:&:@:_elem <- get *in, data:offset
  len:num <- length *s
  at-end?:bool <- greater-or-equal idx len
  {
    break-unless at-end?
    empty-result:&:_elem <- new _elem:type
    return *empty-result, true
  }
  result <- index *s, idx
  idx <- add idx, 1
  *in <- put *in, index:offset, idx
]

def peek in:&:stream:_elem -> result:_elem, empty?:bool [
  local-scope
  load-inputs
  assert in, [cannot peek; stream has no data]
  empty?:bool <- copy false
  idx:num <- get *in, index:offset
  s:&:@:_elem <- get *in, data:offset
  len:num <- length *s
  at-end?:bool <- greater-or-equal idx len
  {
    break-unless at-end?
    empty-result:&:_elem <- new _elem:type
    return *empty-result, true
  }
  result <- index *s, idx
]

def read-line in:&:stream:char -> result:text, in:&:stream:char [
  local-scope
  load-inputs
  assert in, [cannot read-line; stream has no data]
  idx:num <- get *in, index:offset
  s:text <- get *in, data:offset
  next-idx:num <- find-next s, 10/newline, idx
  result <- copy-range s, idx, next-idx
  idx <- add next-idx, 1  # skip newline
  # write back
  *in <- put *in, index:offset, idx
]

def end-of-stream? in:&:stream:_elem -> result:bool [
  local-scope
  load-inputs
  assert in, [cannot check end-of-stream?; stream has no data]
  idx:num <- get *in, index:offset
  s:&:@:_elem <- get *in, data:offset
  len:num <- length *s
  result <- greater-or-equal idx, len
]