# Aap recipe for Exuberant Ctags 5.5.
#
# Maintainer:  Bram Moolenaar
# Last change: 2003 Sep 09
#
# See http://www.a-a-p.org for information on Aap.
# See http://ctags.sf.net for information about Exuberant Ctags.
#
# For Unix:
# Autoconf is used for automatic configuration for your system.
# If you want to set specific configuration options, put configure arguments in
# the "config.arg" file.  Use "./configure --help" to see the possible
# arguments.  Also see the "INSTALL" file.
# Do not run ./configure directly, the results will be overwritten when
# executing this recipe.


# These are the names of the programs, in case you wish to change them.
CtagsProg = ctags$EXESUF	    # the actual ctags program
DCtagsProg = dctags$EXESUF	    # debugging version
EtagsProg = etags$EXESUF	    # actually a link to ctags
ReadtagsProg = readtags$EXESUF	    # standalone tags file reader
EtyperefProg = etyperef$EXESUF	    # eiffel type referencer

# Source files for building ctags, used on all systems.
Sources = args.c asm.c asp.c awk.c beta.c c.c cobol.c eiffel.c entry.c erlang.c
	  fortran.c get.c html.c jscript.c keyword.c lisp.c lregex.c lua.c
	  main.c make.c options.c parse.c pascal.c perl.c php.c python.c read.c
	  rexx.c routines.c ruby.c scheme.c sh.c slang.c sml.c sort.c sql.c
	  strlist.c tcl.c verilog.c vim.c yacc.c vstring.c

# Files for readtags.
ReadtagsSource = readtags.c
ReadtagsHeader = readtags.h

# Manual page to be installed.  This is handled automatigally by the default
# install target.
INSTALL_MAN = ctags.1

#
# On Unix we run configure to generate config.h and config.aap.
# This is skipped if there is no building to be done (e.g., for "clean").
#
@if osname() == "posix" and has_build_target():

    # "config.h" and "config.aap" are generated in $BDIR, because the are
    # different for each system.
    # Tell the compiler to find config.h in $BDIR.
    INCLUDE += -I$BDIR
    DEFINE += -DHAVE_CONFIG_H

    # Run autoconf when needed, but avoid doing this always, not everybody has
    # autoconf installed.  Include "mysign" in the distribution, it stores the
    # signature of the distributed configure script.
    configure {signfile = mysign} : configure.in
	@if not program_path("autoconf"):
	    :print Can't find autoconf, using existing configure script.
	@else:
	    :sys autoconf

    # Filter the configure script created by autoconf to generate config.aap
    # instead of Makefile.  This means we can use the unmodified configure.in
    # distributed with ctags.
    configure_aap : configure
	:cat configure
		| :eval re.sub("Makefile", "config.aap", stdin)
		>! configure_aap
	:chmod 755 configure_aap

    # Dependency to create config.aap by running the configure script.
    # The "config.arg" file is used for configure arguments.
    :attr config {virtual} {comment = Do configuration only}

    config $BDIR/config.h $BDIR/config.aap :
		configure_aap config.arg config.h.in config.aap.in
	:sys ./configure_aap `file2string("config.arg")`
	# Move the results into $BDIR.  This also means the cache isn't used
	# the next time, it is unreliable.
	:move {force} config.h config.aap config.log config.cache
							   config.status $BDIR

    # Create an empty config.arg when it's missing.
    config.arg:
	:touch {exist} config.arg

    # Update config.aap before including it.  Forcefully when the "reconfig"
    # target is used.
    @if "reconfig" in var2list(_no.TARGETARG):
	:del {force} config.cache config.status
	:update {force} $BDIR/config.aap
    @else:
	:update $BDIR/config.aap

    :include $BDIR/config.aap

# A "PREFIX=dir" argument overrules the value of $prefix from configure.
@if _no.get("PREFIX"):
    prefix = $PREFIX

# Copy the old $BDIR before it is changed by ":variant",  needed for
# "distclean" below.
conf_BDIR = $BDIR

#
# Variants: Use "aap DEBUG=yes" to produce the debug version "dctags". 
# You can also install the debug version, if you really want.
#
:variant DEBUG
    no
	ProgName = $CtagsProg
	OPTIMIZE ?= 2
	DEBUG = no
	UNINSTALL_EXEC += $DCtagsProg	    # also uninstall dctags
	CLEANFILES += $DCtagsProg
    yes
	ProgName = $DCtagsProg
	Sources += debug.c
	DEFINE += -DDEBUG
	CPPFLAGS = -g
	OPTIMIZE ?= 0
	UNINSTALL_EXEC += $CtagsProg	    # also uninstall ctags
	CLEANFILES += $CtagsProg

#
# The default things to be build: ctags, readtags and etyperef.
#
all: $ProgName $ReadtagsProg $EtyperefProg

:attr all {comment = build programs "$ProgName", "$ReadtagsProg"
							 and "$EtyperefProg"}

# The "clean" target also deletes the files configure generated.
CLEANFILES +=   $conf_BDIR/config.aap
		$conf_BDIR/config.h
		$conf_BDIR/config.cache
		$conf_BDIR/config.status
		$conf_BDIR/config.log
		configure_aap

# The "cleanmore" target deletes the distributed-generated files.
CLEANMOREFILES = configure config.h.in

#
# Define how to build and install the ctags program.
#
:program $ProgName : $Sources

#
# Also build and install the readtags program.
#
:program $ReadtagsProg : $ReadtagsSource {add_DEFINE = -DREADTAGS_MAIN}
				{var_BDIR = $BDIR-main}

#
# Also build and install the etyperef program.
# A trick is used here: The eiffel.c file is compiled with an extra flag to
# produce the object file $EtyperefObj.  This means the dependencies also
# must be stored elsewhere, the {depdir} attribute does that.
# For the other files we can use the same object files as for ctags, they are
# compiled with the same arguments.
#
EtyperefObj = `src2obj("etyperef.c")`
:program $EtyperefProg : keyword.c routines.c strlist.c vstring.c
			 $EtyperefObj {nodist}

$EtyperefObj : eiffel.c {add_DEFINE = -DTYPE_REFERENCE_TOOL}
			{depdir = $BDIR-etr}
    :do compile $source

# When installing on Unix also create a link to "etags".
install-local:
    @if osname() == "posix":
	:cd $DESTDIR $PREFIX $EXECDIR
	:symlink {force} $ProgName $EtagsProg

uninstall-local:
    @if osname() == "posix":
	:cd $DESTDIR $PREFIX $EXECDIR
	:del {force} $EtagsProg


#
# Extra: install readtags library (well, really an object file), only when
# explicitly asked for.
#
ReadtagsObj = `src2obj(ReadtagsSource)`

install-readtags: $ReadtagsObj
    :do installlib $ReadtagsObj
    :do installinclude $ReadtagsHeader

uninstall-readtags:
    :do uninstalllib $ReadtagsObj
    :do uninstallinclude $ReadtagsHeader

#
# The stuff only used by the maintainer is in a separate recipe.
# This is also useful of you want to submit patches to the maintainer.
# This is at the end, so that $DISTFILES has been set by ":program".
# Only include this when one of the targets in it is used.
#
@if has_targetarg("tags TAGS tar tarclean revise cvstag"):
    :fetch maintainer.aap {fetch = http://www.a-a-p.org/packages/ctags_maintainer.aap}
    :include maintainer.aap


# vim: set sw=4 sts=4 :