source: bootcd/isolinux/syslinux-6.03/txt/Makefile

## -----------------------------------------------------------------------
##
##   Copyright 2012 Gene Cumm
##
##   Some logic from win32/Makefile:
##     Copyright 1998-2008 H. Peter Anvin - All Rights Reserved
##     Copyright 2010 Intel Corporation; author: H. Peter Anvin
##
##   This program is free software; you can redistribute it and/or modify
##   it under the terms of the GNU General Public License as published by
##   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
##   Boston MA 02111-1307, USA; either version 2 of the License, or
##   (at your option) any later version; incorporated herein by reference.
##
## -----------------------------------------------------------------------

##
## AsciiDoc documentation for syslinux
##

topdir = ..
MAKEDIR = $(topdir)/mk
# include $(MAKEDIR)/embedded.mk

VPATH = $(SRC)

A2X_OPTS         = -k
# A2X_OPTS      += -v
A2X_MAN_OPTS     = -D man -f manpage

DOCS             = syslinux.txt syslinux-cli.txt syslinux.cfg.txt \
                   isolinux.txt pxelinux.txt
MAN_DOCS         = man/syslinux.1 man/syslinux-cli.1 man/syslinux.cfg.5 \
                   man/isolinux.1 man/pxelinux.1
HTML_DOCS       := $(patsubst %.txt,html/%.html,$(DOCS)) 
XHTML_DOCS      := $(patsubst %.txt,%.html,$(DOCS))
# MAN_DOCS      := $(patsubst %.txt,man/%.1,$(DOCS1)) $(patsubst %.txt,man/%.5,$(DOCS5))
TEXT_DOCS       := $(patsubst %.txt,%.text,$(DOCS))
PDF_DOCS        := $(patsubst %.txt,%.pdf,$(DOCS))
TARGETS          =

# ASCIIDOC_OK := $(shell which asciidoc 2>&1 ; echo $$?)
ASCIIDOC_OK     := $(shell which asciidoc > /dev/null ; echo $$?)
A2X_XML_OK      := $(shell a2x $(A2X_OPTS) -f docbook hello.txt 2>&1 ; echo $$?)
ifeq ($(A2X_XML_OK),0)
A2X_MAN_OK      := $(shell [ ! -d man ] && mkdir man ; a2x $(A2X_MAN_OPTS) hello.txt 2>&1 ; echo $$?)
A2X_XHTML_OK    := $(shell a2x $(A2X_OPTS) -f xhtml hello.xml 2>&1 ; echo $$?)
A2X_TEXT_OK     := $(shell a2x $(A2X_OPTS) -f text hello.xml 2>&1 ; echo $$?)
endif

ifeq ($(ASCIIDOC_OK),0)
TARGETS         += $(HTML_DOCS)
endif
ifeq ($(A2X_MAN_OK),0)
TARGETS         += $(MAN_DOCS)
endif
ifeq ($(A2X_XHTML_OK),0)
TARGETS         += $(XHTML_DOCS)
endif
ifeq ($(A2X_TEXT_OK),0)
TARGETS         += $(TEXT_DOCS)
endif

# $(HTML_DOCS) $(MAN_DOCS) $(XHTML_DOCS) $(TEXT_DOCS)
all:    $(TARGETS)

syslinux.cfg.txt:       com-bug.txt com-rpt.txt

# During 'make all', *.xml is kept but deleted at the end; do we _really_
#       need the XML longer?
.PRECIOUS:      %.xml

# %.html:       %.txt
#       asciidoc -D html $<

# Mark as .PHONY so they're ignored if found in VPATH
.PHONY: html/ man/ text/ xhtml/

html/ man/ text/ xhtml/:
        mkdir -p $@

html/%.html:    %.txt   | html/
        asciidoc -o $@ $<

# As of AsciiDoc-8.5.2, altering the output filename for a2x does not appear possible
# xhtml/%.html: %.txt
#       a2x $(A2X_OPTS) -D xhtml -f xhtml $<
# text/%.text:  %.xml %.txt
#       a2x $(A2X_OPTS) -D text -f text $<

%.xml:  %.txt
        a2x $(A2X_OPTS) -f docbook $<

# when %.xml is missing, an update to %.txt must force regeneration
%.html: %.xml %.txt
        a2x $(A2X_OPTS) -f xhtml $<

man/%.1:        %.txt   | man/
        a2x $(A2X_MAN_OPTS) $<

man/%.5:        %.txt   | man/
        a2x $(A2X_MAN_OPTS) $<

%.text: %.xml %.txt
        a2x $(A2X_OPTS) -f text $<

%.pdf:  %.xml %.txt
        a2x $(A2X_OPTS) -f pdf $<

tidy dist:
        rm -f *~ *.xml *.text.html text/*.text.html text/*.xml xhtml/*.xml

clean: tidy

spotless: clean
        rm -f *.1 *.5 *.css *.html *.text html/*.html man/*.1 man/*.5 text/*.text xhtml/*.html xhtml/*.css

-include .*.d