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Due to the way make is designed, not being able to read a makefile
is basically silent.

Record errors due to missing permissions and other oddities, and display them
when we error out due to lack of targets, as a quality-of-life diagnostic.

Based on a remark from sthen@, with some feedback and tweaks from op@

okay op@, kn@

#ifndef MAIN_H
#define MAIN_H
/*	$OpenBSD: main.h,v 1.7 2023/05/30 04:42:21 espie Exp $ */

/*
 * Copyright (c) 2001 Marc Espie.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE OPENBSD PROJECT AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OPENBSD
 * PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
/* main
 *	User interface to make.
 */
/* Main_ParseArgLine(string);
 *	Parse string as a line of arguments, and treats them as if they
 *	were given at make's invocation. Used to implement .MFLAGS. */
extern void Main_ParseArgLine(const char *);

/* List of target names given on the command line. Needed to resolve
 * .if make(...) statements. */
extern Lst	create;

/* set_notparallel(): used to influence running mode from parse.c */
extern void set_notparallel(void);

/* dump_unreadable: in case of some errors, dump makefile names
 * we found but are unable to read.
 */
extern void dump_unreadable(void);
#endif