objects := adu.o string.o cmdline.o fd.o select.o create.o interactive.o select.cmdline.o format.o user.o bloom.o
all: adu
version := 1.0.0
uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')

DEBUG_CPPFLAGS += -Wno-sign-compare -g -Wunused -Wundef -W
DEBUG_CPPFLAGS += -Wredundant-decls
CPPFLAGS += -Os
CPPFLAGS += -Wall
CPPFLAGS += -Wuninitialized
CPPFLAGS += -Wchar-subscripts
CPPFLAGS += -Wformat-security
CPPFLAGS += -Werror-implicit-function-declaration
CPPFLAGS += -Wmissing-format-attribute
CPPFLAGS += -Wunused-macros
CPPFLAGS += -Wbad-function-cast
CPPFLAGS += -DVERSION='"$(version)"'
CPPFLAGS += -I/usr/local/include

LDFLAGS += -L/usr/local/lib

PREFIX ?= /usr/local
ifeq "$(origin CC)" "default"
	CC := gcc
endif


ifeq (,$(findstring BSD,$(uname_S)))
	CPPFLAGS += -D_LARGEFILE64_SOURCE
	CPPFLAGS += $(shell getconf LFS64_CFLAGS)
	LDFLAGS += -D_LARGEFILE64_SOURCE
	LDFLAGS += $(shell getconf LFS64_LDFLAGS)
	LDFLAGS += $(shell getconf LFS64_LIBS)
	CPPFLAGS += -DHAVE_STAT64=1
endif


Makefile.deps: $(wildcard *.c *.h)
	$(CC) $(CPPFLAGS) -MM -MG *.c > $@

-include Makefile.deps

adu: $(objects)
	$(CC) -o $@ $(LDFLAGS) $(objects) -losl

cmdline.o: cmdline.c cmdline.h
	$(CC) -c $(CPPFLAGS) $<

cmdline.c cmdline.h: adu.ggo
	gengetopt --no-handle-error --no-handle-help < $<


%.o: %.c Makefile
	$(CC) -c $(CPPFLAGS) $(DEBUG_CPPFLAGS) $<

select.cmdline.c select.cmdline.h: select.ggo
	gengetopt --set-package=select \
		--no-handle-help \
		--no-handle-error \
		--no-handle-version \
		--arg-struct-name=select_args_info \
		--file-name=$(subst .ggo,,$<).cmdline \
		--func-name $(subst .ggo,,$<)_cmdline_parser < $<

select.cmdline.o: select.cmdline.c select.cmdline.h
	$(CC) -c $(CPPFLAGS) $<

adu.1: adu adu.1.inc
	help2man -h --detailed-help --include adu.1.inc -N ./$< > $@

%.1.html: %.1
	man2html $< | sed -e 's|^<DT><DD>$$|<DT><DD><br>|g' > $@

clean:
	rm -f *.o adu *cmdline.c *cmdline.h adu.1 adu.1.html adu.png index.html adu.sk~

index.html: adu.1.html index.html.in INSTALL README
	sed -e '/@README@/,$$d' index.html.in > $@
	markdown README >> $@
	sed -e '1,/@README@/d' -e '/@INSTALL@/,$$d' index.html.in >> $@
	markdown INSTALL >> $@
	sed -e '1,/@INSTALL@/d' -e '/@MAN_PAGE@/,$$d' index.html.in >> $@
	sed -e '1,/Return to Main Contents/d' -e '/Index/,$$d' adu.1.html >> $@
	sed -e '1,/@MAN_PAGE@/d' index.html.in >> $@

install: adu adu.1
	install -s adu $(PREFIX)/bin
	install -m 0644 adu.1 $(PREFIX)/man/man1