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/* Argument parsing and main program of GNU Make.
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Copyright (C) 1988,89,90,91,94,95,96,97,98,99 Free Software Foundation, Inc.
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This file is part of GNU Make.
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GNU Make is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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GNU Make is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Make; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA. */
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# include <proto/dos.h>
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#include "pathstuff.h"
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#if defined(MAKE_JOBSERVER) && defined(HAVE_FCNTL_H)
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int __stack = 20000; /* Make sure we have 20K of stack space */
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extern void init_dir PARAMS ((void));
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extern void remote_options PARAMS ((int *p_argc, char **p_argv[]));
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extern void remote_setup PARAMS ((void));
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extern void remote_cleanup PARAMS ((void));
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extern RETSIGTYPE fatal_error_signal PARAMS ((int sig));
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extern void print_variable_data_base PARAMS ((void));
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extern void print_dir_data_base PARAMS ((void));
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extern void print_rule_data_base PARAMS ((void));
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extern void print_file_data_base PARAMS ((void));
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extern void print_vpath_data_base PARAMS ((void));
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#if defined HAVE_WAITPID || defined HAVE_WAIT3
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# define HAVE_WAIT_NOHANG
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# ifndef sun /* Sun has an incorrect decl in a header. */
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extern void exit PARAMS ((int)) __attribute__ ((noreturn));
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extern double atof ();
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extern char *mktemp ();
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static void print_data_base PARAMS ((void));
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static void print_version PARAMS ((void));
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static void decode_switches PARAMS ((int argc, char **argv, int env));
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static void decode_env_switches PARAMS ((char *envar, unsigned int len));
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static void define_makeflags PARAMS ((int all, int makefile));
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static char *quote_as_word PARAMS ((char *out, char *in, int double_dollars));
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/* The structure that describes an accepted command switch. */
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int c; /* The switch character. */
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enum /* Type of the value. */
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flag, /* Turn int flag on. */
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flag_off, /* Turn int flag off. */
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string, /* One string per switch. */
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positive_int, /* A positive integer. */
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floating, /* A floating-point number (double). */
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char *value_ptr; /* Pointer to the value-holding variable. */
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unsigned int env:1; /* Can come from MAKEFLAGS. */
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unsigned int toenv:1; /* Should be put in MAKEFLAGS. */
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unsigned int no_makefile:1; /* Don't propagate when remaking makefiles. */
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char *noarg_value; /* Pointer to value used if no argument is given. */
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char *default_value;/* Pointer to default value. */
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char *long_name; /* Long option name. */
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char *argdesc; /* Descriptive word for argument. */
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char *description; /* Description for usage message. */
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/* 0 means internal; don't display help. */
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/* True if C is a switch value that corresponds to a short option. */
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#define short_option(c) ((c) <= CHAR_MAX)
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/* The structure used to hold the list of strings given
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in command switches of a type that takes string arguments. */
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char **list; /* Nil-terminated list of strings. */
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unsigned int idx; /* Index into above. */
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unsigned int max; /* Number of pointers allocated. */
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/* The recognized command switches. */
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/* Nonzero means do not print commands to be executed (-s). */
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/* Nonzero means just touch the files
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that would appear to need remaking (-t) */
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/* Nonzero means just print what commands would need to be executed,
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don't actually execute them (-n). */
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/* Print debugging trace info (-d). */
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/* Suspend make in main for a short time to allow debugger to attach */
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int suspend_flag = 0;
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/* Environment variables override makefile definitions. */
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int env_overrides = 0;
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/* Nonzero means ignore status codes returned by commands
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executed to remake files. Just treat them all as successful (-i). */
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int ignore_errors_flag = 0;
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/* Nonzero means don't remake anything, just print the data base
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that results from reading the makefile (-p). */
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int print_data_base_flag = 0;
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/* Nonzero means don't remake anything; just return a nonzero status
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if the specified targets are not up to date (-q). */
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int question_flag = 0;
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/* Nonzero means do not use any of the builtin rules (-r) / variables (-R). */
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int no_builtin_rules_flag = 0;
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int no_builtin_variables_flag = 0;
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/* Nonzero means keep going even if remaking some file fails (-k). */
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int default_keep_going_flag = 0;
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/* Nonzero means print directory before starting and when done (-w). */
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int print_directory_flag = 0;
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/* Nonzero means ignore print_directory_flag and never print the directory.
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This is necessary because print_directory_flag is set implicitly. */
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int inhibit_print_directory_flag = 0;
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/* Nonzero means print version information. */
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int print_version_flag = 0;
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/* List of makefiles given with -f switches. */
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static struct stringlist *makefiles = 0;
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/* Number of job slots (commands that can be run at once). */
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unsigned int job_slots = 1;
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unsigned int default_job_slots = 1;
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/* Value of job_slots that means no limit. */
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static unsigned int inf_jobs = 0;
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/* File descriptors for the jobs pipe. */
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static struct stringlist *jobserver_fds = 0;
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int job_fds[2] = { -1, -1 };
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/* Maximum load average at which multiple jobs will be run.
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Negative values mean unlimited, while zero means limit to
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zero load (which could be useful to start infinite jobs remotely
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but one at a time locally). */
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double max_load_average = -1.0;
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double default_load_average = -1.0;
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int max_load_average = -1;
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int default_load_average = -1;
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/* List of directories given with -C switches. */
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static struct stringlist *directories = 0;
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/* List of include directories given with -I switches. */
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static struct stringlist *include_directories = 0;
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/* List of files given with -o switches. */
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static struct stringlist *old_files = 0;
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/* List of files given with -W switches. */
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static struct stringlist *new_files = 0;
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/* If nonzero, we should just print usage and exit. */
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static int print_usage_flag = 0;
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/* If nonzero, we should print a warning message
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for each reference to an undefined variable. */
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int warn_undefined_variables_flag;
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/* The table of command switches. */
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static const struct command_switch switches[] =
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{ 'b', ignore, 0, 0, 0, 0, 0, 0,
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_("Ignored for compatibility") },
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{ 'C', string, (char *) &directories, 0, 0, 0, 0, 0,
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"directory", _("DIRECTORY"),
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_("Change to DIRECTORY before doing anything") },
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{ 'd', flag, (char *) &debug_flag, 1, 1, 0, 0, 0,
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_("Print lots of debugging information") },
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{ 'D', flag, (char *) &suspend_flag, 1, 1, 0, 0, 0,
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"suspend-for-debug", 0,
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_("Suspend process to allow a debugger to attach") },
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{ 'e', flag, (char *) &env_overrides, 1, 1, 0, 0, 0,
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"environment-overrides", 0,
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_("Environment variables override makefiles") },
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{ 'f', string, (char *) &makefiles, 0, 0, 0, 0, 0,
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_("Read FILE as a makefile") },
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{ 'h', flag, (char *) &print_usage_flag, 0, 0, 0, 0, 0,
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_("Print this message and exit") },
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{ 'i', flag, (char *) &ignore_errors_flag, 1, 1, 0, 0, 0,
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_("Ignore errors from commands") },
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{ 'I', string, (char *) &include_directories, 1, 1, 0, 0, 0,
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"include-dir", _("DIRECTORY"),
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_("Search DIRECTORY for included makefiles") },
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positive_int, (char *) &job_slots, 1, 1, 0,
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(char *) &inf_jobs, (char *) &default_job_slots,
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_("Allow N jobs at once; infinite jobs with no arg") },
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{ CHAR_MAX+1, string, (char *) &jobserver_fds, 1, 1, 0, 0, 0,
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{ 'k', flag, (char *) &keep_going_flag, 1, 1, 0,
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0, (char *) &default_keep_going_flag,
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_("Keep going when some targets can't be made") },
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{ 'l', floating, (char *) &max_load_average, 1, 1, 0,
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(char *) &default_load_average, (char *) &default_load_average,
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_("Don't start multiple jobs unless load is below N") },
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{ 'l', positive_int, (char *) &max_load_average, 1, 1, 0,
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(char *) &default_load_average, (char *) &default_load_average,
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_("Don't start multiple jobs unless load is below N") },
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{ 'm', ignore, 0, 0, 0, 0, 0, 0,
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{ 'n', flag, (char *) &just_print_flag, 1, 1, 1, 0, 0,
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_("Don't actually run any commands; just print them") },
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{ 'o', string, (char *) &old_files, 0, 0, 0, 0, 0,
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"old-file", _("FILE"),
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_("Consider FILE to be very old and don't remake it") },
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{ 'p', flag, (char *) &print_data_base_flag, 1, 1, 0, 0, 0,
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"print-data-base", 0,
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_("Print make's internal database") },
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{ 'q', flag, (char *) &question_flag, 1, 1, 1, 0, 0,
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_("Run no commands; exit status says if up to date") },
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{ 'r', flag, (char *) &no_builtin_rules_flag, 1, 1, 0, 0, 0,
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"no-builtin-rules", 0,
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_("Disable the built-in implicit rules") },
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{ 'R', flag, (char *) &no_builtin_variables_flag, 1, 1, 0, 0, 0,
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"no-builtin-variables", 0,
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_("Disable the built-in variable settings") },
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{ 's', flag, (char *) &silent_flag, 1, 1, 0, 0, 0,
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_("Don't echo commands") },
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{ 'S', flag_off, (char *) &keep_going_flag, 1, 1, 0,
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0, (char *) &default_keep_going_flag,
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{ 't', flag, (char *) &touch_flag, 1, 1, 1, 0, 0,
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_("Touch targets instead of remaking them") },
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{ 'v', flag, (char *) &print_version_flag, 1, 1, 0, 0, 0,
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_("Print the version number of make and exit") },
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{ 'w', flag, (char *) &print_directory_flag, 1, 1, 0, 0, 0,
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"print-directory", 0,
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_("Print the current directory") },
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{ CHAR_MAX+2, flag, (char *) &inhibit_print_directory_flag, 1, 1, 0, 0, 0,
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"no-print-directory", 0,
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_("Turn off -w, even if it was turned on implicitly") },
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{ 'W', string, (char *) &new_files, 0, 0, 0, 0, 0,
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"what-if", _("FILE"),
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_("Consider FILE to be infinitely new") },
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{ CHAR_MAX+3, flag, (char *) &warn_undefined_variables_flag, 1, 1, 0, 0, 0,
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"warn-undefined-variables", 0,
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_("Warn when an undefined variable is referenced") },
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/* Secondary long names for options. */
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static struct option long_option_aliases[] =
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{ "quiet", no_argument, 0, 's' },
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{ "stop", no_argument, 0, 'S' },
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{ "new-file", required_argument, 0, 'W' },
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{ "assume-new", required_argument, 0, 'W' },
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{ "assume-old", required_argument, 0, 'o' },
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{ "max-load", optional_argument, 0, 'l' },
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{ "dry-run", no_argument, 0, 'n' },
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{ "recon", no_argument, 0, 'n' },
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{ "makefile", required_argument, 0, 'f' },
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/* The usage message prints the descriptions of options starting in
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this column. Make sure it leaves enough room for the longest
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description to fit in less than 80 characters. */
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#define DESCRIPTION_COLUMN 30
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/* List of goal targets. */
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static struct dep *goals, *lastgoal;
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/* List of variables which were defined on the command line
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(or, equivalently, in MAKEFLAGS). */
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struct command_variable
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struct command_variable *next;
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struct variable *variable;
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static struct command_variable *command_variables;
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/* The name we were invoked with. */
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/* Our current directory before processing any -C options. */
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char *directory_before_chdir;
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/* Our current directory after processing all -C options. */
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char *starting_directory;
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/* Value of the MAKELEVEL variable at startup (or 0). */
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unsigned int makelevel;
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/* First file defined in the makefile whose name does not
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start with `.'. This is the default to remake if the
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command line does not specify. */
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struct file *default_goal_file;
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/* Pointer to structure for the file .DEFAULT
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whose commands are used for any file that has none of its own.
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This is zero if the makefiles do not define .DEFAULT. */
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struct file *default_file;
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/* Nonzero if we have seen the magic `.POSIX' target.
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This turns on pedantic compliance with POSIX.2. */
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/* Nonzero if some rule detected clock skew; we keep track so (a) we only
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print one warning about it during the run, and (b) we can print a final
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warning at the end of the run. */
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int clock_skew_detected;
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/* Mask of signals that are being caught with fatal_error_signal. */
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sigset_t fatal_signal_set;
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#ifdef HAVE_SIGSETMASK
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int fatal_signal_mask;
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enter_command_line_file (name)
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fatal (NILF, _("empty string invalid as file name"));
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char *expanded = tilde_expand (name);
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name = expanded; /* Memory leak; I don't care. */
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/* This is also done in parse_file_seq, so this is redundant
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for names read from makefiles. It is here for names passed
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on the command line. */
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while (name[0] == '.' && name[1] == '/' && name[2] != '\0')
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/* Skip following slashes: ".//foo" is "foo", not "/foo". */
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/* It was all slashes! Move back to the dot and truncate
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it after the first slash, so it becomes just "./". */
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while (name[0] != '.');
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return enter_file (xstrdup (name));
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/* Toggle -d on receipt of SIGUSR1. */
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debug_signal_handler (sig)
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debug_flag = ! debug_flag;
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* HANDLE runtime exceptions by avoiding a requestor on the GUI. Capture
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* exception and print it to stderr instead.
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* If debug_flag not set, just print a simple message and exit.
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* If debug_flag set, print a more verbose message.
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* If compiled for DEBUG, let exception pass through to GUI so that
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* debuggers can attach.
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handle_runtime_exceptions( struct _EXCEPTION_POINTERS *exinfo )
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PEXCEPTION_RECORD exrec = exinfo->ExceptionRecord;
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LPSTR cmdline = GetCommandLine();
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LPSTR prg = strtok(cmdline, " ");
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LPTSTR lpszStrings[1];
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sprintf(errmsg, _("%s: Interrupt/Exception caught "), prg);
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sprintf(&errmsg[strlen(errmsg)],
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"(code = 0x%x, addr = 0x%x)\r\n",
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exrec->ExceptionCode, exrec->ExceptionAddress);
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fprintf(stderr, errmsg);
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_("\r\nUnhandled exception filter called from program %s\r\n"), prg);
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sprintf(&errmsg[strlen(errmsg)], "ExceptionCode = %x\r\n",
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exrec->ExceptionCode);
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sprintf(&errmsg[strlen(errmsg)], "ExceptionFlags = %x\r\n",
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exrec->ExceptionFlags);
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sprintf(&errmsg[strlen(errmsg)], "ExceptionAddress = %x\r\n",
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exrec->ExceptionAddress);
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if (exrec->ExceptionCode == EXCEPTION_ACCESS_VIOLATION
528
&& exrec->NumberParameters >= 2)
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sprintf(&errmsg[strlen(errmsg)],
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_("Access violation: %s operation at address %x\r\n"),
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exrec->ExceptionInformation[0] ? _("write"): _("read"),
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exrec->ExceptionInformation[1]);
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/* turn this on if we want to put stuff in the event log too */
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hEventSource = RegisterEventSource(NULL, "GNU Make");
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lpszStrings[0] = errmsg;
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if (hEventSource != NULL)
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ReportEvent(hEventSource, /* handle of event source */
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EVENTLOG_ERROR_TYPE, /* event type */
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0, /* event category */
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NULL, /* current user's SID */
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1, /* strings in lpszStrings */
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0, /* no bytes of raw data */
548
lpszStrings, /* array of error strings */
549
NULL); /* no raw data */
551
(VOID) DeregisterEventSource(hEventSource);
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/* Write the error to stderr too */
556
fprintf(stderr, errmsg);
559
return EXCEPTION_CONTINUE_SEARCH;
562
return (255); /* not reached */
567
* On WIN32 systems we don't have the luxury of a /bin directory that
568
* is mapped globally to every drive mounted to the system. Since make could
569
* be invoked from any drive, and we don't want to propogate /bin/sh
570
* to every single drive. Allow ourselves a chance to search for
571
* a value for default shell here (if the default path does not exist).
575
find_and_set_default_shell(char *token)
580
extern char *default_shell;
583
search_token = default_shell;
585
search_token = token;
587
if (!no_default_sh_exe &&
588
(token == NULL || !strcmp(search_token, default_shell))) {
589
/* no new information, path already set or known */
591
} else if (file_exists_p(search_token)) {
592
/* search token path was found */
593
sprintf(sh_path, "%s", search_token);
594
default_shell = xstrdup(w32ify(sh_path,0));
596
printf(_("find_and_set_shell setting default_shell = %s\n"), default_shell);
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struct variable *v = lookup_variable ("Path", 4);
603
* Search Path for shell
609
ep = strchr(p, PATH_SEPARATOR_CHAR);
614
if (dir_file_exists_p(p, search_token)) {
615
sprintf(sh_path, "%s/%s", p, search_token);
616
default_shell = xstrdup(w32ify(sh_path,0));
618
*ep = PATH_SEPARATOR_CHAR;
623
*ep = PATH_SEPARATOR_CHAR;
627
ep = strchr(p, PATH_SEPARATOR_CHAR);
630
/* be sure to check last element of Path */
631
if (p && *p && dir_file_exists_p(p, search_token)) {
632
sprintf(sh_path, "%s/%s", p, search_token);
633
default_shell = xstrdup(w32ify(sh_path,0));
637
if (debug_flag && sh_found)
638
printf(_("find_and_set_shell path search set default_shell = %s\n"), default_shell);
643
if (!unixy_shell && sh_found &&
644
(strstr(default_shell, "sh") || strstr(default_shell, "SH"))) {
646
batch_mode_shell = 0;
649
#ifdef BATCH_MODE_ONLY_SHELL
650
batch_mode_shell = 1;
655
#endif /* WINDOWS32 */
660
msdos_return_to_initial_directory ()
662
if (directory_before_chdir)
663
chdir (directory_before_chdir);
669
main (argc, argv, envp)
674
int main (int argc, char ** argv)
677
static char *stdin_nm = 0;
678
register struct file *f;
679
register unsigned int i;
681
struct dep *read_makefiles;
682
PATH_VAR (current_directory);
684
/* read and strip options for remote execution */
685
remote_options(&argc, &argv);
688
char *unix_path = NULL;
689
char *windows32_path = NULL;
691
SetUnhandledExceptionFilter(handle_runtime_exceptions);
693
/* start off assuming we have no shell */
695
no_default_sh_exe = 1;
698
default_goal_file = 0;
701
#if defined (__MSDOS__) && !defined (_POSIX_SOURCE)
702
/* Request the most powerful version of `system', to
703
make up for the dumb default shell. */
704
__system_flags = (__system_redirect
706
| __system_allow_multiple_cmds
707
| __system_allow_long_cmds
708
| __system_handle_null_commands
709
| __system_emulate_chdir);
713
#if !defined (HAVE_STRSIGNAL) && !defined (HAVE_SYS_SIGLIST)
718
sigemptyset (&fatal_signal_set);
719
#define ADD_SIG(sig) sigaddset (&fatal_signal_set, sig)
721
#ifdef HAVE_SIGSETMASK
722
fatal_signal_mask = 0;
723
#define ADD_SIG(sig) fatal_signal_mask |= sigmask (sig)
729
#define FATAL_SIG(sig) \
730
if (signal ((sig), fatal_error_signal) == SIG_IGN) \
731
(void) signal ((sig), SIG_IGN); \
745
FATAL_SIG (SIGDANGER);
756
/* Do not ignore the child-death signal. This must be done before
757
any children could possibly be created; otherwise, the wait
758
functions won't work on systems with the SVR4 ECHILD brain
759
damage, if our invoker is ignoring this signal. */
761
#ifdef HAVE_WAIT_NOHANG
763
(void) signal (SIGCHLD, SIG_DFL);
765
# if defined SIGCLD && SIGCLD != SIGCHLD
766
(void) signal (SIGCLD, SIG_DFL);
770
/* Make sure stdout is line-buffered. */
772
#ifdef HAVE_SETLINEBUF
775
#ifndef SETVBUF_REVERSED
776
setvbuf (stdout, (char *) 0, _IOLBF, BUFSIZ);
777
#else /* setvbuf not reversed. */
778
/* Some buggy systems lose if we pass 0 instead of allocating ourselves. */
779
setvbuf (stdout, _IOLBF, xmalloc (BUFSIZ), BUFSIZ);
780
#endif /* setvbuf reversed. */
781
#endif /* setlinebuf missing. */
783
/* Figure out where this program lives. */
787
if (argv[0][0] == '\0')
792
program = rindex (argv[0], ']');
794
program = rindex (argv[0], '/');
798
program = rindex (argv[0], '\\');
801
/* Some weird environments might pass us argv[0] with
802
both kinds of slashes; we must find the rightmost. */
803
char *p = rindex (argv[0], '\\');
804
if (p && p > program)
807
if (program == 0 && argv[0][1] == ':')
808
program = argv[0] + 1;
816
/* Set up to access user data (files). */
819
/* Figure out where we are. */
822
if (getcwd_fs (current_directory, GET_PATH_MAX) == 0)
824
if (getcwd (current_directory, GET_PATH_MAX) == 0)
828
perror_with_name ("getcwd: ", "");
830
error (NILF, "getwd: %s", current_directory);
832
current_directory[0] = '\0';
833
directory_before_chdir = 0;
836
directory_before_chdir = xstrdup (current_directory);
838
/* Make sure we will return to the initial directory, come what may. */
839
atexit (msdos_return_to_initial_directory);
842
/* Read in variables from the environment. It is important that this be
843
done before $(MAKE) is figured out so its definitions will not be
844
from the environment. */
847
for (i = 0; envp[i] != 0; ++i)
850
register char *ep = envp[i];
852
/* by default, everything gets defined and exported */
858
if (!unix_path && strneq(envp[i], "PATH=", 5))
860
else if (!windows32_path && !strnicmp(envp[i], "Path=", 5)) {
861
do_not_define = 1; /* it gets defined after loop exits */
862
windows32_path = ep+1;
865
/* The result of pointer arithmetic is cast to unsigned int for
866
machines where ptrdiff_t is a different size that doesn't widen
869
define_variable (envp[i], (unsigned int) (ep - envp[i]),
871
/* Force exportation of every variable culled from the environment.
872
We used to rely on target_environment's v_default code to do this.
873
But that does not work for the case where an environment variable
874
is redefined in a makefile with `override'; it should then still
875
be exported, because it was originally in the environment. */
880
* Make sure that this particular spelling of 'Path' is available
883
define_variable("Path", 4, windows32_path, o_env, 1)->export = v_export;
885
define_variable("Path", 4, unix_path, o_env, 1)->export = v_export;
887
define_variable("Path", 4, "", o_env, 1)->export = v_export;
890
* PATH defaults to Path iff PATH not found and Path is found.
892
if (!unix_path && windows32_path)
893
define_variable("PATH", 4, windows32_path, o_env, 1)->export = v_export;
895
#else /* For Amiga, read the ENV: device, ignoring all dirs */
900
__aligned struct FileInfoBlock fib;
902
env = Lock ("ENV:", ACCESS_READ);
905
old = CurrentDir (DupLock(env));
908
while (ExNext (env, &fib))
910
if (fib.fib_DirEntryType < 0) /* File */
912
/* Define an empty variable. It will be filled in
913
variable_lookup(). Makes startup quite a bit
915
define_variable (fib.fib_FileName,
916
strlen (fib.fib_FileName),
917
"", o_env, 1)->export = v_export;
921
UnLock(CurrentDir(old));
926
/* Decode the switches. */
928
decode_env_switches ("MAKEFLAGS", 9);
930
/* People write things like:
931
MFLAGS="CC=gcc -pipe" "CFLAGS=-g"
932
and we set the -p, -i and -e switches. Doesn't seem quite right. */
933
decode_env_switches ("MFLAGS", 6);
935
decode_switches (argc, argv, 0);
938
fprintf(stderr, "%s (pid = %d)\n", argv[0], GetCurrentProcessId());
939
fprintf(stderr, _("%s is suspending for 30 seconds..."), argv[0]);
941
fprintf(stderr, _("done sleep(30). Continuing.\n"));
945
/* Print version information. */
947
if (print_version_flag || print_data_base_flag || debug_flag)
950
/* `make --version' is supposed to just print the version and exit. */
951
if (print_version_flag)
955
/* Set the "MAKE_COMMAND" variable to the name we were invoked with.
956
(If it is a relative pathname with a slash, prepend our directory name
957
so the result will run the same program regardless of the current dir.
958
If it is a name with no slash, we can only hope that PATH did not
959
find it in the current directory.) */
962
* Convert from backslashes to forward slashes for
963
* programs like sh which don't like them. Shouldn't
964
* matter if the path is one way or the other for
967
if (strpbrk(argv[0], "/:\\") ||
968
strstr(argv[0], "..") ||
969
strneq(argv[0], "//", 2))
970
argv[0] = xstrdup(w32ify(argv[0],1));
971
#else /* WINDOWS32 */
973
if (strchr (argv[0], '\\'))
977
argv[0] = xstrdup (argv[0]);
978
for (p = argv[0]; *p; p++)
982
/* If argv[0] is not in absolute form, prepend the current
983
directory. This can happen when Make is invoked by another DJGPP
984
program that uses a non-absolute name. */
985
if (current_directory[0] != '\0'
987
&& (argv[0][0] != '/' && (argv[0][0] == '\0' || argv[0][1] != ':')))
988
argv[0] = concat (current_directory, "/", argv[0]);
989
#else /* !__MSDOS__ */
990
if (current_directory[0] != '\0'
991
&& argv[0] != 0 && argv[0][0] != '/' && index (argv[0], '/') != 0)
992
argv[0] = concat (current_directory, "/", argv[0]);
993
#endif /* !__MSDOS__ */
994
#endif /* WINDOWS32 */
997
/* The extra indirection through $(MAKE_COMMAND) is done
998
for hysterical raisins. */
999
(void) define_variable ("MAKE_COMMAND", 12, argv[0], o_default, 0);
1000
(void) define_variable ("MAKE", 4, "$(MAKE_COMMAND)", o_default, 1);
1002
if (command_variables != 0)
1004
struct command_variable *cv;
1006
unsigned int len = 0;
1009
/* Figure out how much space will be taken up by the command-line
1010
variable definitions. */
1011
for (cv = command_variables; cv != 0; cv = cv->next)
1014
len += 2 * strlen (v->name);
1018
len += 3 * strlen (v->value);
1021
/* Now allocate a buffer big enough and fill it. */
1022
p = value = (char *) alloca (len);
1023
for (cv = command_variables; cv != 0; cv = cv->next)
1026
p = quote_as_word (p, v->name, 0);
1030
p = quote_as_word (p, v->value, 0);
1033
p[-1] = '\0'; /* Kill the final space and terminate. */
1035
/* Define an unchangeable variable with a name that no POSIX.2
1036
makefile could validly use for its own variable. */
1037
(void) define_variable ("-*-command-variables-*-", 23,
1038
value, o_automatic, 0);
1040
/* Define the variable; this will not override any user definition.
1041
Normally a reference to this variable is written into the value of
1042
MAKEFLAGS, allowing the user to override this value to affect the
1043
exported value of MAKEFLAGS. In POSIX-pedantic mode, we cannot
1044
allow the user's setting of MAKEOVERRIDES to affect MAKEFLAGS, so
1045
a reference to this hidden variable is written instead. */
1046
(void) define_variable ("MAKEOVERRIDES", 13,
1047
"${-*-command-variables-*-}", o_env, 1);
1050
/* If there were -C flags, move ourselves about. */
1051
if (directories != 0)
1052
for (i = 0; directories->list[i] != 0; ++i)
1054
char *dir = directories->list[i];
1057
char *expanded = tilde_expand (dir);
1061
if (chdir (dir) < 0)
1062
pfatal_with_name (dir);
1063
if (dir != directories->list[i])
1069
* THIS BLOCK OF CODE MUST COME AFTER chdir() CALL ABOVE IN ORDER
1070
* TO NOT CONFUSE THE DEPENDENCY CHECKING CODE IN implicit.c.
1072
* The functions in dir.c can incorrectly cache information for "."
1073
* before we have changed directory and this can cause file
1074
* lookups to fail because the current directory (.) was pointing
1075
* at the wrong place when it was first evaluated.
1077
no_default_sh_exe = !find_and_set_default_shell(NULL);
1079
#endif /* WINDOWS32 */
1080
/* Figure out the level of recursion. */
1082
struct variable *v = lookup_variable ("MAKELEVEL", 9);
1083
if (v != 0 && *v->value != '\0' && *v->value != '-')
1084
makelevel = (unsigned int) atoi (v->value);
1089
/* Except under -s, always do -w in sub-makes and under -C. */
1090
if (!silent_flag && (directories != 0 || makelevel > 0))
1091
print_directory_flag = 1;
1093
/* Let the user disable that with --no-print-directory. */
1094
if (inhibit_print_directory_flag)
1095
print_directory_flag = 0;
1097
/* If -R was given, set -r too (doesn't make sense otherwise!) */
1098
if (no_builtin_variables_flag)
1099
no_builtin_rules_flag = 1;
1101
/* Construct the list of include directories to search. */
1103
construct_include_path (include_directories == 0 ? (char **) 0
1104
: include_directories->list);
1106
/* Figure out where we are now, after chdir'ing. */
1107
if (directories == 0)
1108
/* We didn't move, so we're still in the same place. */
1109
starting_directory = current_directory;
1113
if (getcwd_fs (current_directory, GET_PATH_MAX) == 0)
1115
if (getcwd (current_directory, GET_PATH_MAX) == 0)
1119
perror_with_name ("getcwd: ", "");
1121
error (NILF, "getwd: %s", current_directory);
1123
starting_directory = 0;
1126
starting_directory = current_directory;
1129
(void) define_variable ("CURDIR", 6, current_directory, o_default, 0);
1131
/* Read any stdin makefiles into temporary files. */
1135
register unsigned int i;
1136
for (i = 0; i < makefiles->idx; ++i)
1137
if (makefiles->list[i][0] == '-' && makefiles->list[i][1] == '\0')
1139
/* This makefile is standard input. Since we may re-exec
1140
and thus re-read the makefiles, we read standard input
1141
into a temporary file and read from that. */
1144
/* Make a unique filename. */
1148
static char name[] = "sys$scratch:GmXXXXXX";
1150
static char name[] = "/tmp/GmXXXXXX";
1152
(void) mktemp (name);
1154
static char name[L_tmpnam];
1155
(void) tmpnam (name);
1159
fatal (NILF, _("Makefile from standard input specified twice."));
1161
outfile = fopen (name, "w");
1163
pfatal_with_name (_("fopen (temporary file)"));
1164
while (!feof (stdin))
1167
unsigned int n = fread (buf, 1, sizeof (buf), stdin);
1168
if (n > 0 && fwrite (buf, 1, n, outfile) != n)
1169
pfatal_with_name (_("fwrite (temporary file)"));
1171
(void) fclose (outfile);
1173
/* Replace the name that read_all_makefiles will
1174
see with the name of the temporary file. */
1177
/* SGI compiler requires alloca's result be assigned simply. */
1178
temp = (char *) alloca (sizeof (name));
1179
bcopy (name, temp, sizeof (name));
1180
makefiles->list[i] = temp;
1183
/* Make sure the temporary file will not be remade. */
1184
stdin_nm = savestring (name, sizeof (name) -1);
1185
f = enter_file (stdin_nm);
1187
f->update_status = 0;
1188
f->command_state = cs_finished;
1189
/* Can't be intermediate, or it'll be removed too early for
1191
f->intermediate = 0;
1196
#if defined(MAKE_JOBSERVER) || !defined(HAVE_WAIT_NOHANG)
1197
/* Set up to handle children dying. This must be done before
1198
reading in the makefiles so that `shell' function calls will work.
1200
If we don't have a hanging wait we have to fall back to old, broken
1201
functionality here and rely on the signal handler and counting
1204
If we're using the jobs pipe we need a signal handler so that
1205
SIGCHLD is not ignored; we need it to interrupt the read(2) of the
1206
jobserver pipe in job.c if we're waiting for a token.
1208
If none of these are true, we don't need a signal handler at all. */
1210
extern RETSIGTYPE child_handler PARAMS ((int sig));
1212
# if defined HAVE_SIGACTION
1213
struct sigaction sa;
1215
bzero ((char *)&sa, sizeof (struct sigaction));
1216
sa.sa_handler = child_handler;
1217
# if defined SA_INTERRUPT
1218
/* This is supposed to be the default, but what the heck... */
1219
sa.sa_flags = SA_INTERRUPT;
1221
# define HANDLESIG(s) sigaction (s, &sa, NULL)
1223
# define HANDLESIG(s) signal (s, child_handler)
1226
/* OK, now actually install the handlers. */
1227
# if defined SIGCHLD
1228
(void) HANDLESIG (SIGCHLD);
1230
# if defined SIGCLD && SIGCLD != SIGCHLD
1231
(void) HANDLESIG (SIGCLD);
1236
/* Let the user send us SIGUSR1 to toggle the -d flag during the run. */
1238
(void) signal (SIGUSR1, debug_signal_handler);
1241
/* Define the initial list of suffixes for old-style rules. */
1243
set_default_suffixes ();
1245
/* Define the file rules for the built-in suffix rules. These will later
1246
be converted into pattern rules. We used to do this in
1247
install_default_implicit_rules, but since that happens after reading
1248
makefiles, it results in the built-in pattern rules taking precedence
1249
over makefile-specified suffix rules, which is wrong. */
1251
install_default_suffix_rules ();
1253
/* Define some internal and special variables. */
1255
define_automatic_variables ();
1257
/* Set up the MAKEFLAGS and MFLAGS variables
1258
so makefiles can look at them. */
1260
define_makeflags (0, 0);
1262
/* Define the default variables. */
1263
define_default_variables ();
1265
/* Read all the makefiles. */
1267
default_file = enter_file (".DEFAULT");
1270
= read_all_makefiles (makefiles == 0 ? (char **) 0 : makefiles->list);
1273
/* look one last time after reading all Makefiles */
1274
if (no_default_sh_exe)
1275
no_default_sh_exe = !find_and_set_default_shell(NULL);
1277
if (no_default_sh_exe && job_slots != 1) {
1278
error (NILF, _("Do not specify -j or --jobs if sh.exe is not available."));
1279
error (NILF, _("Resetting make for single job mode."));
1282
#endif /* WINDOWS32 */
1285
/* We need to know what kind of shell we will be using. */
1287
extern int _is_unixy_shell (const char *_path);
1288
struct variable *shv = lookup_variable ("SHELL", 5);
1289
extern int unixy_shell;
1290
extern char *default_shell;
1292
if (shv && *shv->value)
1294
char *shell_path = recursively_expand(shv);
1296
if (shell_path && _is_unixy_shell (shell_path))
1301
default_shell = shell_path;
1304
#endif /* __MSDOS__ */
1306
/* Decode switches again, in case the variables were set by the makefile. */
1307
decode_env_switches ("MAKEFLAGS", 9);
1309
decode_env_switches ("MFLAGS", 6);
1316
_("Parallel jobs (-j) are not supported on this platform."));
1317
error (NILF, _("Resetting to single job (-j1) mode."));
1322
#ifdef MAKE_JOBSERVER
1323
/* If the jobserver-fds option is seen, make sure that -j is reasonable. */
1329
for (i=1; i < jobserver_fds->idx; ++i)
1330
if (!streq (jobserver_fds->list[0], jobserver_fds->list[i]))
1331
fatal (NILF, _("internal error: multiple --jobserver-fds options"));
1333
/* Now parse the fds string and make sure it has the proper format. */
1335
cp = jobserver_fds->list[0];
1337
if (sscanf (cp, "%d,%d", &job_fds[0], &job_fds[1]) != 2)
1339
_("internal error: invalid --jobserver-fds string `%s'"), cp);
1341
/* The combination of a pipe + !job_slots means we're using the
1342
jobserver. If !job_slots and we don't have a pipe, we can start
1343
infinite jobs. If we see both a pipe and job_slots >0 that means the
1344
user set -j explicitly. This is broken; in this case obey the user
1345
(ignore the jobserver pipe for this make) but print a message. */
1349
_("warning: -jN forced in submake: disabling jobserver mode."));
1351
/* Create a duplicate pipe, that will be closed in the SIGCHLD
1352
handler. If this fails with EBADF, the parent has closed the pipe
1353
on us because it didn't think we were a submake. If so, print a
1354
warning then default to -j1. */
1356
else if ((job_rfd = dup (job_fds[0])) < 0)
1359
pfatal_with_name (_("dup jobserver"));
1362
_("warning: jobserver unavailable: using -j1. Add `+' to parent make rule."));
1370
job_fds[0] = job_fds[1] = -1;
1371
free (jobserver_fds->list);
1372
free (jobserver_fds);
1377
/* If we have >1 slot but no jobserver-fds, then we're a top-level make.
1378
Set up the pipe and install the fds option for our children. */
1384
if (pipe (job_fds) < 0 || (job_rfd = dup (job_fds[0])) < 0)
1385
pfatal_with_name (_("creating jobs pipe"));
1387
/* Every make assumes that it always has one job it can run. For the
1388
submakes it's the token they were given by their parent. For the
1389
top make, we just subtract one from the number the user wants. We
1390
want job_slots to be 0 to indicate we're using the jobserver. */
1393
while (write (job_fds[1], &c, 1) != 1)
1395
pfatal_with_name (_("init jobserver pipe"));
1397
/* Fill in the jobserver_fds struct for our children. */
1399
jobserver_fds = (struct stringlist *)
1400
xmalloc (sizeof (struct stringlist));
1401
jobserver_fds->list = (char **) xmalloc (sizeof (char *));
1402
jobserver_fds->list[0] = xmalloc ((sizeof ("1024")*2)+1);
1404
sprintf (jobserver_fds->list[0], "%d,%d", job_fds[0], job_fds[1]);
1405
jobserver_fds->idx = 1;
1406
jobserver_fds->max = 1;
1410
/* Set up MAKEFLAGS and MFLAGS again, so they will be right. */
1412
define_makeflags (1, 0);
1414
/* Make each `struct dep' point at the `struct file' for the file
1415
depended on. Also do magic for special targets. */
1419
/* Convert old-style suffix rules to pattern rules. It is important to
1420
do this before installing the built-in pattern rules below, so that
1421
makefile-specified suffix rules take precedence over built-in pattern
1424
convert_to_pattern ();
1426
/* Install the default implicit pattern rules.
1427
This used to be done before reading the makefiles.
1428
But in that case, built-in pattern rules were in the chain
1429
before user-defined ones, so they matched first. */
1431
install_default_implicit_rules ();
1433
/* Compute implicit rule limits. */
1435
count_implicit_rule_limits ();
1437
/* Construct the listings of directories in VPATH lists. */
1439
build_vpath_lists ();
1441
/* Mark files given with -o flags as very old (00:00:01.00 Jan 1, 1970)
1442
and as having been updated already, and files given with -W flags as
1443
brand new (time-stamp as far as possible into the future). */
1446
for (p = old_files->list; *p != 0; ++p)
1448
f = enter_command_line_file (*p);
1449
f->last_mtime = f->mtime_before_update = (FILE_TIMESTAMP) 1;
1451
f->update_status = 0;
1452
f->command_state = cs_finished;
1457
for (p = new_files->list; *p != 0; ++p)
1459
f = enter_command_line_file (*p);
1460
f->last_mtime = f->mtime_before_update = NEW_MTIME;
1464
/* Initialize the remote job module. */
1467
if (read_makefiles != 0)
1469
/* Update any makefiles if necessary. */
1471
FILE_TIMESTAMP *makefile_mtimes = 0;
1472
unsigned int mm_idx = 0;
1473
char **nargv = argv;
1477
puts (_("Updating makefiles...."));
1479
/* Remove any makefiles we don't want to try to update.
1480
Also record the current modtimes so we can compare them later. */
1482
register struct dep *d, *last;
1487
register struct file *f = d->file;
1488
if (f->double_colon)
1489
for (f = f->double_colon; f != NULL; f = f->prev)
1491
if (f->deps == 0 && f->cmds != 0)
1493
/* This makefile is a :: target with commands, but
1494
no dependencies. So, it will always be remade.
1495
This might well cause an infinite loop, so don't
1496
try to remake it. (This will only happen if
1497
your makefiles are written exceptionally
1498
stupidly; but if you work for Athena, that's how
1499
you write your makefiles.) */
1502
printf (_("Makefile `%s' might loop; not remaking it.\n"),
1506
read_makefiles = d->next;
1508
last->next = d->next;
1510
/* Free the storage. */
1513
d = last == 0 ? read_makefiles : last->next;
1518
if (f == NULL || !f->double_colon)
1520
makefile_mtimes = (FILE_TIMESTAMP *)
1521
xrealloc ((char *) makefile_mtimes,
1522
(mm_idx + 1) * sizeof (FILE_TIMESTAMP));
1523
makefile_mtimes[mm_idx++] = file_mtime_no_search (d->file);
1530
/* Set up `MAKEFLAGS' specially while remaking makefiles. */
1531
define_makeflags (1, 1);
1533
switch (update_goal_chain (read_makefiles, 1))
1537
#define BOGUS_UPDATE_STATUS 0
1538
assert (BOGUS_UPDATE_STATUS);
1546
/* Failed to update. Figure out if we care. */
1548
/* Nonzero if any makefile was successfully remade. */
1550
/* Nonzero if any makefile we care about failed
1551
in updating or could not be found at all. */
1553
register unsigned int i;
1556
for (i = 0, d = read_makefiles; d != 0; ++i, d = d->next)
1558
/* Reset the considered flag; we may need to look at the file
1559
again to print an error. */
1560
d->file->considered = 0;
1562
if (d->file->updated)
1564
/* This makefile was updated. */
1565
if (d->file->update_status == 0)
1567
/* It was successfully updated. */
1568
any_remade |= (file_mtime_no_search (d->file)
1569
!= makefile_mtimes[i]);
1571
else if (! (d->changed & RM_DONTCARE))
1573
FILE_TIMESTAMP mtime;
1574
/* The update failed and this makefile was not
1575
from the MAKEFILES variable, so we care. */
1576
error (NILF, _("Failed to remake makefile `%s'."),
1578
mtime = file_mtime_no_search (d->file);
1579
any_remade |= (mtime != (FILE_TIMESTAMP) -1
1580
&& mtime != makefile_mtimes[i]);
1584
/* This makefile was not found at all. */
1585
if (! (d->changed & RM_DONTCARE))
1587
/* This is a makefile we care about. See how much. */
1588
if (d->changed & RM_INCLUDED)
1589
/* An included makefile. We don't need
1590
to die, but we do want to complain. */
1592
_("Included makefile `%s' was not found."),
1596
/* A normal makefile. We must die later. */
1597
error (NILF, _("Makefile `%s' was not found"),
1603
/* Reset this to empty so we get the right error message below. */
1615
/* Updated successfully. Re-exec ourselves. */
1617
remove_intermediates (0);
1619
if (print_data_base_flag)
1622
log_working_directory (0);
1626
/* These names might have changed. */
1627
register unsigned int i, j = 0;
1628
for (i = 1; i < argc; ++i)
1629
if (strneq (argv[i], "-f", 2)) /* XXX */
1631
char *p = &argv[i][2];
1633
argv[++i] = makefiles->list[j];
1635
argv[i] = concat ("-f", makefiles->list[j], "");
1640
/* Add -o option for the stdin temporary file, if necessary. */
1643
nargv = (char **) xmalloc ((nargc + 2) * sizeof (char *));
1644
bcopy ((char *) argv, (char *) nargv, argc * sizeof (char *));
1645
nargv[nargc++] = concat ("-o", stdin_nm, "");
1649
if (directories != 0 && directories->idx > 0)
1652
if (directory_before_chdir != 0)
1654
if (chdir (directory_before_chdir) < 0)
1656
perror_with_name ("chdir", "");
1665
fatal (NILF, _("Couldn't change back to original directory."));
1669
for (p = environ; *p != 0; ++p)
1670
if (strneq (*p, "MAKELEVEL=", 10))
1672
/* The SGI compiler apparently can't understand
1673
the concept of storing the result of a function
1674
in something other than a local variable. */
1676
sgi_loses = (char *) alloca (40);
1678
sprintf (*p, "MAKELEVEL=%u", makelevel);
1686
len = GetVar ("MAKELEVEL", buffer, sizeof (buffer), GVF_GLOBAL_ONLY);
1690
sprintf (buffer, "%u", makelevel);
1691
SetVar ("MAKELEVEL", buffer, -1, GVF_GLOBAL_ONLY);
1699
fputs (_("Re-executing:"), stdout);
1700
for (p = nargv; *p != 0; ++p)
1708
/* Close the dup'd jobserver pipe if we opened one. */
1713
exec_command (nargv, environ);
1715
exec_command (nargv);
1722
/* Set up `MAKEFLAGS' again for the normal targets. */
1723
define_makeflags (1, 0);
1725
/* If there is a temp file from reading a makefile from stdin, get rid of
1727
if (stdin_nm && unlink (stdin_nm) < 0 && errno != ENOENT)
1728
perror_with_name (_("unlink (temporary file): "), stdin_nm);
1733
/* If there were no command-line goals, use the default. */
1736
if (default_goal_file != 0)
1738
goals = (struct dep *) xmalloc (sizeof (struct dep));
1741
goals->file = default_goal_file;
1749
if (read_makefiles == 0)
1750
fatal (NILF, _("No targets specified and no makefile found"));
1752
fatal (NILF, _("No targets"));
1755
/* Update the goals. */
1758
puts (_("Updating goal targets...."));
1760
switch (update_goal_chain (goals, 0))
1763
/* Nothing happened. */
1765
/* Updated successfully. */
1766
status = EXIT_SUCCESS;
1769
/* Updating failed. POSIX.2 specifies exit status >1 for this;
1770
but in VMS, there is only success and failure. */
1771
status = EXIT_FAILURE ? 2 : EXIT_FAILURE;
1774
/* We are under -q and would run some commands. */
1775
status = EXIT_FAILURE;
1781
/* If we detected some clock skew, generate one last warning */
1782
if (clock_skew_detected)
1783
error (NILF, _("*** Warning: Clock skew detected. Your build may be incomplete."));
1792
/* Parsing of arguments, decoding of switches. */
1794
static char options[1 + sizeof (switches) / sizeof (switches[0]) * 3];
1795
static struct option long_options[(sizeof (switches) / sizeof (switches[0])) +
1796
(sizeof (long_option_aliases) /
1797
sizeof (long_option_aliases[0]))];
1799
/* Fill in the string and vector for getopt. */
1805
register unsigned int i;
1807
if (options[0] != '\0')
1813
/* Return switch and non-switch args in order, regardless of
1814
POSIXLY_CORRECT. Non-switch args are returned as option 1. */
1817
for (i = 0; switches[i].c != '\0'; ++i)
1819
long_options[i].name = (switches[i].long_name == 0 ? "" :
1820
switches[i].long_name);
1821
long_options[i].flag = 0;
1822
long_options[i].val = switches[i].c;
1823
if (short_option (switches[i].c))
1824
*p++ = switches[i].c;
1825
switch (switches[i].type)
1830
long_options[i].has_arg = no_argument;
1836
if (short_option (switches[i].c))
1838
if (switches[i].noarg_value != 0)
1840
if (short_option (switches[i].c))
1842
long_options[i].has_arg = optional_argument;
1845
long_options[i].has_arg = required_argument;
1850
for (c = 0; c < (sizeof (long_option_aliases) /
1851
sizeof (long_option_aliases[0]));
1853
long_options[i++] = long_option_aliases[c];
1854
long_options[i].name = 0;
1858
handle_non_switch_argument (arg, env)
1862
/* Non-option argument. It might be a variable definition. */
1864
if (arg[0] == '-' && arg[1] == '\0')
1865
/* Ignore plain `-' for compatibility. */
1867
v = try_variable_definition (0, arg, o_command);
1870
/* It is indeed a variable definition. Record a pointer to
1871
the variable for later use in define_makeflags. */
1872
struct command_variable *cv
1873
= (struct command_variable *) xmalloc (sizeof (*cv));
1875
cv->next = command_variables;
1876
command_variables = cv;
1880
/* Not an option or variable definition; it must be a goal
1881
target! Enter it as a file and add it to the dep chain of
1883
struct file *f = enter_command_line_file (arg);
1888
goals = (struct dep *) xmalloc (sizeof (struct dep));
1893
lastgoal->next = (struct dep *) xmalloc (sizeof (struct dep));
1894
lastgoal = lastgoal->next;
1900
/* Add this target name to the MAKECMDGOALS variable. */
1904
v = lookup_variable ("MAKECMDGOALS", 12);
1909
/* Paste the old and new values together */
1910
unsigned int oldlen, newlen;
1912
oldlen = strlen (v->value);
1913
newlen = strlen (f->name);
1914
value = (char *) alloca (oldlen + 1 + newlen + 1);
1915
bcopy (v->value, value, oldlen);
1916
value[oldlen] = ' ';
1917
bcopy (f->name, &value[oldlen + 1], newlen + 1);
1919
define_variable ("MAKECMDGOALS", 12, value, o_default, 0);
1924
/* Print a nice usage method. */
1930
register const struct command_switch *cs;
1933
if (print_version_flag)
1936
usageto = bad ? stderr : stdout;
1938
fprintf (usageto, _("Usage: %s [options] [target] ...\n"), program);
1940
fputs (_("Options:\n"), usageto);
1941
for (cs = switches; cs->c != '\0'; ++cs)
1943
char buf[1024], shortarg[50], longarg[50], *p;
1945
if (!cs->description || cs->description[0] == '-')
1948
switch (long_options[cs - switches].has_arg)
1951
shortarg[0] = longarg[0] = '\0';
1953
case required_argument:
1954
sprintf (longarg, "=%s", cs->argdesc);
1955
sprintf (shortarg, " %s", cs->argdesc);
1957
case optional_argument:
1958
sprintf (longarg, "[=%s]", cs->argdesc);
1959
sprintf (shortarg, " [%s]", cs->argdesc);
1965
if (short_option (cs->c))
1967
sprintf (buf, " -%c%s", cs->c, shortarg);
1970
if (cs->long_name != 0)
1973
sprintf (p, "%s--%s%s",
1974
!short_option (cs->c) ? " " : ", ",
1975
cs->long_name, longarg);
1977
for (i = 0; i < (sizeof (long_option_aliases) /
1978
sizeof (long_option_aliases[0]));
1980
if (long_option_aliases[i].val == cs->c)
1982
sprintf (p, ", --%s%s",
1983
long_option_aliases[i].name, longarg);
1988
const struct command_switch *ncs = cs;
1989
while ((++ncs)->c != '\0')
1990
if (ncs->description
1991
&& ncs->description[0] == '-'
1992
&& ncs->description[1] == cs->c)
1994
/* This is another switch that does the same
1995
one as the one we are processing. We want
1996
to list them all together on one line. */
1997
sprintf (p, ", -%c%s", ncs->c, shortarg);
1999
if (ncs->long_name != 0)
2001
sprintf (p, ", --%s%s", ncs->long_name, longarg);
2007
if (p - buf > DESCRIPTION_COLUMN - 2)
2008
/* The list of option names is too long to fit on the same
2009
line with the description, leaving at least two spaces.
2010
Print it on its own line instead. */
2012
fprintf (usageto, "%s\n", buf);
2016
fprintf (usageto, "%*s%s.\n",
2017
- DESCRIPTION_COLUMN,
2018
buf, cs->description);
2022
/* Decode switches from ARGC and ARGV.
2023
They came from the environment if ENV is nonzero. */
2026
decode_switches (argc, argv, env)
2032
register const struct command_switch *cs;
2033
register struct stringlist *sl;
2036
/* getopt does most of the parsing for us.
2037
First, get its vectors set up. */
2041
/* Let getopt produce error messages for the command line,
2042
but not for options from the environment. */
2044
/* Reset getopt's state. */
2047
while (optind < argc)
2049
/* Parse the next argument. */
2050
c = getopt_long (argc, argv, options, long_options, (int *) 0);
2052
/* End of arguments, or "--" marker seen. */
2055
/* An argument not starting with a dash. */
2056
handle_non_switch_argument (optarg, env);
2058
/* Bad option. We will print a usage message and die later.
2059
But continue to parse the other options so the user can
2060
see all he did wrong. */
2063
for (cs = switches; cs->c != '\0'; ++cs)
2066
/* Whether or not we will actually do anything with
2067
this switch. We test this individually inside the
2068
switch below rather than just once outside it, so that
2069
options which are to be ignored still consume args. */
2070
int doit = !env || cs->env;
2083
*(int *) cs->value_ptr = cs->type == flag;
2091
optarg = cs->noarg_value;
2093
sl = *(struct stringlist **) cs->value_ptr;
2096
sl = (struct stringlist *)
2097
xmalloc (sizeof (struct stringlist));
2100
sl->list = (char **) xmalloc (5 * sizeof (char *));
2101
*(struct stringlist **) cs->value_ptr = sl;
2103
else if (sl->idx == sl->max - 1)
2106
sl->list = (char **)
2107
xrealloc ((char *) sl->list,
2108
sl->max * sizeof (char *));
2110
sl->list[sl->idx++] = optarg;
2111
sl->list[sl->idx] = 0;
2115
if (optarg == 0 && argc > optind
2116
&& ISDIGIT (argv[optind][0]))
2117
optarg = argv[optind++];
2124
int i = atoi (optarg);
2128
error (NILF, _("the `-%c' option requires a positive integral argument"),
2133
*(unsigned int *) cs->value_ptr = i;
2136
*(unsigned int *) cs->value_ptr
2137
= *(unsigned int *) cs->noarg_value;
2142
if (optarg == 0 && optind < argc
2143
&& (ISDIGIT (argv[optind][0]) || argv[optind][0] == '.'))
2144
optarg = argv[optind++];
2147
*(double *) cs->value_ptr
2148
= (optarg != 0 ? atof (optarg)
2149
: *(double *) cs->noarg_value);
2155
/* We've found the switch. Stop looking. */
2160
/* There are no more options according to getting getopt, but there may
2161
be some arguments left. Since we have asked for non-option arguments
2162
to be returned in order, this only happens when there is a "--"
2163
argument to prevent later arguments from being options. */
2164
while (optind < argc)
2165
handle_non_switch_argument (argv[optind++], env);
2168
if (!env && (bad || print_usage_flag))
2175
/* Decode switches from environment variable ENVAR (which is LEN chars long).
2176
We do this by chopping the value into a vector of words, prepending a
2177
dash to the first word if it lacks one, and passing the vector to
2181
decode_env_switches (envar, len)
2185
char *varref = (char *) alloca (2 + len + 2);
2190
/* Get the variable's value. */
2193
bcopy (envar, &varref[2], len);
2194
varref[2 + len] = ')';
2195
varref[2 + len + 1] = '\0';
2196
value = variable_expand (varref);
2198
/* Skip whitespace, and check for an empty value. */
2199
value = next_token (value);
2200
len = strlen (value);
2204
/* Allocate a vector that is definitely big enough. */
2205
argv = (char **) alloca ((1 + len + 1) * sizeof (char *));
2207
/* Allocate a buffer to copy the value into while we split it into words
2208
and unquote it. We must use permanent storage for this because
2209
decode_switches may store pointers into the passed argument words. */
2210
p = (char *) xmalloc (2 * len);
2212
/* getopt will look at the arguments starting at ARGV[1].
2213
Prepend a spacer word. */
2217
while (*value != '\0')
2220
++value; /* Skip the backslash. */
2221
else if (isblank (*value))
2223
/* End of the word. */
2228
while (isblank (*value));
2236
if (argv[1][0] != '-' && index (argv[1], '=') == 0)
2237
/* The first word doesn't start with a dash and isn't a variable
2238
definition. Add a dash and pass it along to decode_switches. We
2239
need permanent storage for this in case decode_switches saves
2240
pointers into the value. */
2241
argv[1] = concat ("-", argv[1], "");
2243
/* Parse those words. */
2244
decode_switches (argc, argv, 1);
2247
/* Quote the string IN so that it will be interpreted as a single word with
2248
no magic by the shell; if DOUBLE_DOLLARS is nonzero, also double dollar
2249
signs to avoid variable expansion in make itself. Write the result into
2250
OUT, returning the address of the next character to be written.
2251
Allocating space for OUT twice the length of IN (thrice if
2252
DOUBLE_DOLLARS is nonzero) is always sufficient. */
2255
quote_as_word (out, in, double_dollars)
2262
if (index ("^;'\"*?$<>(){}|&~`\\ \t\r\n\f\v", *in) != 0)
2264
if (index ("^;'\"*?[]$<>(){}|&~`\\ \t\r\n\f\v", *in) != 0)
2267
if (double_dollars && *in == '$')
2275
/* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the
2276
command switches. Include options with args if ALL is nonzero.
2277
Don't include options with the `no_makefile' flag set if MAKEFILE. */
2280
define_makeflags (all, makefile)
2283
static const char ref[] = "$(MAKEOVERRIDES)";
2284
static const char posixref[] = "$(-*-command-variables-*-)";
2285
register const struct command_switch *cs;
2291
/* We will construct a linked list of `struct flag's describing
2292
all the flags which need to go in MAKEFLAGS. Then, once we
2293
know how many there are and their lengths, we can put them all
2294
together in a string. */
2299
const struct command_switch *cs;
2302
struct flag *flags = 0;
2303
unsigned int flagslen = 0;
2304
#define ADD_FLAG(ARG, LEN) \
2306
struct flag *new = (struct flag *) alloca (sizeof (struct flag)); \
2309
new->next = flags; \
2311
if (new->arg == 0) \
2312
++flagslen; /* Just a single flag letter. */ \
2314
flagslen += 1 + 1 + 1 + 1 + 3 * (LEN); /* " -x foo" */ \
2315
if (!short_option (cs->c)) \
2316
/* This switch has no single-letter version, so we use the long. */ \
2317
flagslen += 2 + strlen (cs->long_name); \
2320
for (cs = switches; cs->c != '\0'; ++cs)
2321
if (cs->toenv && (!makefile || !cs->no_makefile))
2332
if (!*(int *) cs->value_ptr == (cs->type == flag_off)
2333
&& (cs->default_value == 0
2334
|| *(int *) cs->value_ptr != *(int *) cs->default_value))
2341
if ((cs->default_value != 0
2342
&& (*(unsigned int *) cs->value_ptr
2343
== *(unsigned int *) cs->default_value)))
2345
else if (cs->noarg_value != 0
2346
&& (*(unsigned int *) cs->value_ptr ==
2347
*(unsigned int *) cs->noarg_value))
2348
ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2349
else if (cs->c == 'j')
2350
/* Special case for `-j'. */
2354
char *buf = (char *) alloca (30);
2355
sprintf (buf, "%u", *(unsigned int *) cs->value_ptr);
2356
ADD_FLAG (buf, strlen (buf));
2365
if (cs->default_value != 0
2366
&& (*(double *) cs->value_ptr
2367
== *(double *) cs->default_value))
2369
else if (cs->noarg_value != 0
2370
&& (*(double *) cs->value_ptr
2371
== *(double *) cs->noarg_value))
2372
ADD_FLAG ("", 0); /* Optional value omitted; see below. */
2375
char *buf = (char *) alloca (100);
2376
sprintf (buf, "%g", *(double *) cs->value_ptr);
2377
ADD_FLAG (buf, strlen (buf));
2386
struct stringlist *sl = *(struct stringlist **) cs->value_ptr;
2389
/* Add the elements in reverse order, because
2390
all the flags get reversed below; and the order
2391
matters for some switches (like -I). */
2392
register unsigned int i = sl->idx;
2394
ADD_FLAG (sl->list[i], strlen (sl->list[i]));
2400
flagslen += 4 + sizeof posixref; /* Four more for the possible " -- ". */
2404
/* Construct the value in FLAGSTRING.
2405
We allocate enough space for a preceding dash and trailing null. */
2406
flagstring = (char *) alloca (1 + flagslen + 1);
2407
bzero (flagstring, 1 + flagslen + 1);
2413
/* Add the flag letter or name to the string. */
2414
if (short_option (flags->cs->c))
2415
*p++ = flags->cs->c;
2424
strcpy (p, flags->cs->long_name);
2427
if (flags->arg != 0)
2429
/* A flag that takes an optional argument which in this case is
2430
omitted is specified by ARG being "". We must distinguish
2431
because a following flag appended without an intervening " -"
2432
is considered the arg for the first. */
2433
if (flags->arg[0] != '\0')
2435
/* Add its argument too. */
2436
*p++ = !short_option (flags->cs->c) ? '=' : ' ';
2437
p = quote_as_word (p, flags->arg, 1);
2440
/* Write a following space and dash, for the next flag. */
2444
else if (!short_option (flags->cs->c))
2447
/* Long options must each go in their own word,
2448
so we write the following space and dash. */
2452
flags = flags->next;
2455
/* Define MFLAGS before appending variable definitions. */
2457
if (p == &flagstring[1])
2459
flagstring[0] = '\0';
2460
else if (p[-1] == '-')
2462
/* Kill the final space and dash. */
2467
/* Terminate the string. */
2470
/* Since MFLAGS is not parsed for flags, there is no reason to
2471
override any makefile redefinition. */
2472
(void) define_variable ("MFLAGS", 6, flagstring, o_env, 1);
2474
if (all && command_variables != 0)
2476
/* Now write a reference to $(MAKEOVERRIDES), which contains all the
2477
command-line variable definitions. */
2479
if (p == &flagstring[1])
2480
/* No flags written, so elide the leading dash already written. */
2484
/* Separate the variables from the switches with a "--" arg. */
2487
/* We did not already write a trailing " -". */
2491
/* There is a trailing " -"; fill it out to " -- ". */
2496
/* Copy in the string. */
2499
bcopy (posixref, p, sizeof posixref - 1);
2500
p += sizeof posixref - 1;
2504
bcopy (ref, p, sizeof ref - 1);
2505
p += sizeof ref - 1;
2508
else if (p == &flagstring[1])
2513
else if (p[-1] == '-')
2514
/* Kill the final space and dash. */
2516
/* Terminate the string. */
2519
v = define_variable ("MAKEFLAGS", 9,
2520
/* If there are switches, omit the leading dash
2521
unless it is a single long option with two
2523
&flagstring[(flagstring[0] == '-'
2524
&& flagstring[1] != '-')
2526
/* This used to use o_env, but that lost when a
2527
makefile defined MAKEFLAGS. Makefiles set
2528
MAKEFLAGS to add switches, but we still want
2529
to redefine its value with the full set of
2530
switches. Of course, an override or command
2531
definition will still take precedence. */
2534
/* The first time we are called, set MAKEFLAGS to always be exported.
2535
We should not do this again on the second call, because that is
2536
after reading makefiles which might have done `unexport MAKEFLAGS'. */
2537
v->export = v_export;
2540
/* Print version information. */
2545
extern char *make_host;
2546
static int printed_version = 0;
2548
char *precede = print_data_base_flag ? "# " : "";
2550
if (printed_version)
2551
/* Do it only once. */
2554
printf ("%sGNU Make version %s", precede, version_string);
2555
if (remote_description != 0 && *remote_description != '\0')
2556
printf ("-%s", remote_description);
2558
printf (_(", by Richard Stallman and Roland McGrath.\n\
2560
%sCopyright (C) 1988, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99\n\
2561
%s\tFree Software Foundation, Inc.\n\
2562
%sThis is free software; see the source for copying conditions.\n\
2563
%sThere is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
2564
%sPARTICULAR PURPOSE.\n\n\
2565
%sReport bugs to <bug-make@gnu.org>.\n\n"),
2567
precede, precede, precede, precede, precede, precede);
2569
printed_version = 1;
2571
/* Flush stdout so the user doesn't have to wait to see the
2572
version information while things are thought about. */
2576
/* Print a bunch of information about this and that. */
2583
when = time ((time_t *) 0);
2584
printf (_("\n# Make data base, printed on %s"), ctime (&when));
2586
print_variable_data_base ();
2587
print_dir_data_base ();
2588
print_rule_data_base ();
2589
print_file_data_base ();
2590
print_vpath_data_base ();
2592
when = time ((time_t *) 0);
2593
printf (_("\n# Finished Make data base on %s\n"), ctime (&when));
2596
/* Exit with STATUS, cleaning up as necessary. */
2602
static char dying = 0;
2610
if (print_version_flag)
2613
/* Wait for children to die. */
2614
for (err = status != 0; job_slots_used > 0; err = 0)
2615
reap_children (1, err);
2617
/* Let the remote job module clean up its state. */
2620
/* Remove the intermediate files. */
2621
remove_intermediates (0);
2623
if (print_data_base_flag)
2626
/* Try to move back to the original directory. This is essential on
2627
MS-DOS (where there is really only one process), and on Unix it
2628
puts core files in the original directory instead of the -C
2629
directory. Must wait until after remove_intermediates(), or unlinks
2630
of relative pathnames fail. */
2631
if (directory_before_chdir != 0)
2632
chdir (directory_before_chdir);
2634
log_working_directory (0);
2640
/* Write a message indicating that we've just entered or
2641
left (according to ENTERING) the current directory. */
2644
log_working_directory (entering)
2647
static int entered = 0;
2648
char *msg = entering ? _("Entering") : _("Leaving");
2650
/* Print nothing without the flag. Don't print the entering message
2651
again if we already have. Don't print the leaving message if we
2652
haven't printed the entering message. */
2653
if (! print_directory_flag || entering == entered)
2658
if (print_data_base_flag)
2659
fputs ("# ", stdout);
2662
printf ("%s: %s ", program, msg);
2664
printf ("%s[%u]: %s ", program, makelevel, msg);
2666
if (starting_directory == 0)
2667
puts (_("an unknown directory"));
2669
printf (_("directory `%s'\n"), starting_directory);
added
removed
source/3rdparty/qmake/main.c
