/*
 * NAME
 *	program - construct a program
 *
 * DESCRIPTION
 *	This cookbook defines how to construct a program.
 *
 *	If you program uses any libraries, you will have to append
 *	them to cc_link_flags in your Howto.cook file.
 *
 * VARIABLES
 *	all		targets of the all recipe
 *	install		targets of the install recipe
 *	me		the name of the program to be constructed.
 *			Defaults to the last component of the pathname
 *			of the current directory.
 *	install		targets of the install command.
 *	ld		The name of the linker program
 *	ld_flags	Command line arguments for the linker
 *	ld_libraries	Library command line arguments for the linker
 *
 * RECIPES
 *	all:		construct the targets defined in [all].
 *	clean:		remove the files named in [dot_clean].
 *	clobber:	remove the files name in [dot_clean] and [all].
 *
 * If the [lib] variable is defined
 *	install:	construct the files named in [install].
 *	uninstall:	remove the files named in [install].
 *
 * MANIFEST: cookbook for constructing programs
 */

#pragma once

if [not [defined me]] then
    me = [entryname [dir [pathname x]]];

all = [me];
if [find_command lint] then
if [defined dot_lint_obj] then
	all = [all] [me].lint;
dot_clean = [dot_clean] [me]~;

if [not [defined ld]] then
{
	if [defined c++] then
		ld = [c++];
	else if [defined cc] then
		ld = [cc];
	else if [defined f77] then
		ld = [f77];
	else
		ld = ld;
}

all: [all]
    set default;

run: all
{
	[me]
		set errok silent;
}

clean:
{
	rm -f [dot_clean]
		set clearstat;
}

clobber: clean
{
	rm -f [all]
		set clearstat;
}

if [defined bin] then
{
	install = [bin]/[me];

	install: [install];

	uninstall:
	{
		rm -f [install]
			set clearstat;
	}

	[bin]/%: %
	{
		cp % [bin]/%;
		chmod og-w [bin]/%;
	}

	[lib]/%: %
	{
		cp % [lib]/%;
		chmod og-w [lib]/%;
	}
}

find_libs = [find_command find_libs];

function ld_flags_careful =
{
    local result = ;
    if [defined ld_flags] then
	result += [ld_flags];
    if [defined cc_link_flags] then
    	result += [cc_link_flags];
    if [defined c++_link_flags] then
    	result += [c++_link_flags];
    if [defined f77_link_flags] then
    	result += [f77_link_flags];
    return [result];
}

/*
 * The cc_link_flags are an historical accident.  They can't be removed
 * without breaking existing installed sites.	Sigh.
 */

if [find_libs] then
{
	if [not [defined ld_libraries]] then
		ld_libraries = ;
	[me]: [dot_obj] [collect [find_libs] [match_mask -L%0%
		[ld_flags_careful] [ld_libraries]]]
	{
		if [not [defined ld_flags]] then
			ld_flags = ;
		if [exists [me]~] then
			rm -f [me]~
				set clearstat;
		if [exists [me]] then
			mv [me] [me]~
				set clearstat;
		[ld] [ld_flags_careful] [dot_obj] [ld_libraries]
			-o [me];
	}
}
else
{
	[me]: [dot_obj]
	{
		if [not [defined ld_flags]] then
			ld_flags = ;
		if [exists [me]~] then
			rm -f [me]~
				set clearstat;
		if [exists [me]] then
			mv [me] [me]~
				set clearstat;
		[ld] [ld_flags_careful] [dot_obj] [ld_libraries]
			-o [me];
	}
}

if [find_command lint] then
if [defined dot_lint_obj] then
{
	[me].lint: [dot_lint_obj]
	{
		[lint] [dot_lint_obj] [ld_libraries] [cc_link_flags];
	}
}
