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- /* Copyright (C) 1988, 1989, 1990 Free Software Foundation, Inc.
- This file is part of GNU Make.
-
- GNU Make 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; either version 1, or (at your option)
- any later version.
-
- GNU Make is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with GNU Make; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /*
- * MS-DOS port (c) 1990 by Thorsten Ohl <ohl@gnu.ai.mit.edu>
- *
- * To this port, the same copying conditions apply as to the
- * original release.
- *
- * IMPORTANT:
- * This file is not identical to the original GNU release!
- * You should have received this code as patch to the official
- * GNU release.
- *
- * MORE IMPORTANT:
- * This port comes with ABSOLUTELY NO WARRANTY.
- *
- * $Header: e:/gnu/make/RCS/main.c'v 3.58.0.7 90/08/27 01:25:08 tho Exp $
- */
-
- #include "make.h"
- #include "commands.h"
- #include "dep.h"
- #include "file.h"
- #include "variable.h"
- #include "job.h"
- #include <ctype.h>
- #include <time.h>
-
- #ifdef MSDOS
- #include <process.h>
- #include <swaplib.h>
- extern char *msdos_version_string;
- #endif /* MSDOS */
-
- extern char *version_string;
-
- extern int fatal_error_signal ();
-
- extern struct dep *read_all_makefiles ();
-
- extern void print_variable_data_base ();
- extern void print_dir_data_base ();
- extern void print_rule_data_base ();
- extern void print_file_data_base ();
- extern void print_vpath_data_base ();
-
- #ifdef MSDOS
- #include <direct.h>
- #include <io.h>
- #else /* not MSDOS */
- extern int chdir ();
- extern void exit ();
- extern long int atol ();
- extern time_t time ();
- extern int mktemp ();
- extern double atof ();
- #endif /* not MSDOS */
-
- #ifdef MSDOS
- extern int main (int argc, char **argv, char **envp);
- static void decode_switches (int argc, char **argv);
- static void decode_env_switches (char *envar, unsigned int len);
- static void define_makeflags (int pf);
- static void print_version (void);
- static void print_data_base (void);
- static void log_working_directory (int entering);
- #else /* not MSDOS */
- static void log_working_directory ();
- static void print_data_base (), print_version ();
- static void decode_switches (), decode_env_switches ();
- static void define_makeflags ();
- #endif /* not MSDOS */
-
- #if 0 /* dummy tag */
- flags () {}
- #endif
- /* Flags:
- * -b ignored for compatability with System V Make
- * -C change directory
- * -d debug
- * -e env_overrides
- * -f makefile
- * -i ignore_errors
- * -j job_slots
- * -k keep_going
- * -l max_load_average
- * -m ignored for compatibility with something or other
- * -n just_print
- * -o consider file old
- * -p print_data_base
- * -q question
- * -r no_builtin_rules
- * -s silent
- * -S turn off -k
- * -t touch
- * -v print version information
- * -w log working directory
- * -W consider file new (with -n, `what' if effect)
- */
-
- /* The structure that describes an accepted command switch. */
-
- struct command_switch
- {
- char c; /* The switch character. */
- enum /* Type of the value. */
- {
- flag, /* Turn int flag on. */
- flag_off, /* Turn int flag off. */
- string, /* One string per switch, may be in the same word. */
- positive_int, /* A positive integer. */
- floating, /* A floating-point number (double). */
- ignore, /* Ignored. */
- } type;
-
- char *value_ptr; /* Pointer to the value-holding variable. */
- char env; /* Can come from MAKEFLAGS. */
- char toenv; /* Should be put in MAKEFLAGS. */
-
- char *noarg_value; /* Pointer to value used if no argument is given. */
- char *default_value;/* Pointer to default value. */
- };
-
-
- /* The structure used to hold the list of strings given
- in command switches of a type that takes string arguments. */
-
- struct stringlist
- {
- char **list; /* Nil-terminated list of strings. */
- unsigned int idx; /* Index into above. */
- unsigned int max; /* Number of pointers allocated. */
- };
-
-
- /* The recognized command switches. */
-
- /* Nonzero means do not print commands to be executed (-s). */
-
- int silent_flag;
-
- /* Nonzero means just touch the files
- that would appear to need remaking (-t) */
-
- int touch_flag;
-
- /* Nonzero means just print what commands would need to be executed,
- don't actually execute them (-n). */
-
- int just_print_flag;
-
- /* Print debugging trace info (-d). */
-
- int debug_flag = 0;
-
- /* Environment variables override makefile definitions. */
-
- int env_overrides = 0;
-
- /* Nonzero means ignore status codes returned by commands
- executed to remake files. Just treat them all as successful (-i). */
-
- int ignore_errors_flag = 0;
-
- /* Nonzero means don't remake anything, just print the data base
- that results from reading the makefile (-p). */
-
- int print_data_base_flag = 0;
-
- /* Nonzero means don't remake anything; just return a nonzero status
- if the specified targets are not up to date (-q). */
-
- int question_flag = 0;
-
- /* Nonzero means do not use any of the builtin rules (-r). */
-
- int no_builtin_rules_flag = 0;
-
- /* Nonzero means keep going even if remaking some file fails (-k). */
-
- int keep_going_flag = 0;
-
- /* Nonzero means print working directory
- before starting and after finishing make. */
-
- int print_directory_flag = 0;
-
- /* Nonzero means print version information. */
-
- int print_version_flag = 0;
-
- /* List of makefiles given with -f switches. */
-
- static struct stringlist *makefiles = 0;
-
-
- /* Number of job slots (commands that can be run at once). */
-
- unsigned int job_slots = 1;
- unsigned int default_job_slots = 1;
-
- /* Value of job_slots that means no limit. */
-
- static unsigned int inf_jobs = 0;
-
- /* Maximum load average at which multiple jobs will be run.
- Negative values mean unlimited, while zero means limit to
- zero load (which could be useful to start infinite jobs remotely
- but one at a time locally). */
-
- double max_load_average = -1.0;
- double default_load_average = -1.0;
-
- /* List of directories given with -c switches. */
-
- static struct stringlist *directories = 0;
-
- /* List of include directories given with -I switches. */
-
- static struct stringlist *include_directories = 0;
-
- /* List of files given with -o switches. */
-
- static struct stringlist *old_files = 0;
-
- /* List of files given with -W switches. */
-
- static struct stringlist *new_files = 0;
-
- /* The table of command switches. */
-
- static struct command_switch switches[] =
- {
- { 'b', ignore, 0, 0, 0, 0, 0 },
- { 'C', string, (char *) &directories, 0, 0, 0, 0 },
- { 'd', flag, (char *) &debug_flag, 1, 1, 0, 0 },
- { 'e', flag, (char *) &env_overrides, 1, 1, 0, 0 },
- { 'f', string, (char *) &makefiles, 0, 0, 0, 0 },
- { 'i', flag, (char *) &ignore_errors_flag, 1, 1, 0, 0 },
- { 'I', string, (char *) &include_directories, 0, 0, 0, 0 },
- { 'j', positive_int, (char *) &job_slots, 1, 1,
- (char *) &inf_jobs, (char *) &default_job_slots },
- { 'k', flag, (char *) &keep_going_flag, 1, 1, 0, 0 },
- { 'l', floating, (char *) &max_load_average, 1, 1,
- (char *) &default_load_average, (char *) &default_load_average },
- { 'm', ignore, 0, 0, 0, 0, 0 },
- { 'n', flag, (char *) &just_print_flag, 1, 1, 0, 0 },
- { 'o', string, (char *) &old_files, 0, 0, 0, 0 },
- { 'p', flag, (char *) &print_data_base_flag, 1, 1, 0, 0 },
- { 'q', flag, (char *) &question_flag, 1, 1, 0, 0 },
- { 'r', flag, (char *) &no_builtin_rules_flag, 1, 1, 0, 0 },
- { 's', flag, (char *) &silent_flag, 1, 1, 0, 0 },
- { 'S', flag_off, (char *) &keep_going_flag, 1, 1, 0, 0 },
- { 't', flag, (char *) &touch_flag, 1, 1, 0, 0 },
- { 'v', flag, (char *) &print_version_flag, 0, 0, 0, 0 },
- { 'w', flag, (char *) &print_directory_flag, 1, 1, 0, 0 },
- { 'W', string, (char *) &new_files, 0, 0, 0, 0 },
- { '\0', ignore, 0, 0, 0, 0 }
- };
-
- /* List of non-switch arguments. */
-
- struct stringlist *other_args = 0;
-
-
- /* The name we were invoked with. */
-
- char *program;
-
- /* Value of the MAKELEVEL variable at startup (or 0). */
-
- unsigned int makelevel;
-
- /* First file defined in the makefile whose name does not
- start with `.'. This is the default to remake if the
- command line does not specify. */
-
- struct file *default_goal_file;
-
- /* Pointer to structure for the file .DEFAULT
- whose commands are used for any file that has none of its own.
- This is zero if the makefiles do not define .DEFAULT. */
-
- struct file *default_file;
-
- #ifdef MSDOS
- /* Under MS-DOS the current directory is not local to the process,
- so we have to find means to back up somehow. */
-
- char current_directory[MAXPATHLEN];
- #endif /* MSDOS */
-
-
- int
- main (argc, argv, envp)
- int argc;
- char **argv;
- char **envp;
- {
- #if defined(USG) && !defined(HAVE_SIGLIST)
- extern void init_siglist ();
- #endif
- extern int child_handler ();
- register struct file *f;
- register unsigned int i;
- int status;
- register char *cmd_defs;
- register unsigned int cmd_defs_len, cmd_defs_idx;
- char **p;
- time_t now;
- struct dep *goals = 0;
- register struct dep *lastgoal;
- struct dep *read_makefiles;
- #ifndef MSDOS /* see above */
- char current_directory[MAXPATHLEN];
- #endif /* not MSDOS */
-
-
- default_goal_file = 0;
- reading_filename = 0;
- reading_lineno_ptr = 0;
-
- #if defined(USG) && !defined(HAVE_SIGLIST)
- init_siglist ();
- #endif
-
- #ifndef MSDOS
- if (signal (SIGHUP, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGHUP, SIG_IGN);
- if (signal (SIGQUIT, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGQUIT, SIG_IGN);
- #endif /* ! MSDOS */
- if (signal (SIGINT, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGINT, SIG_IGN);
- #ifndef MSDOS
- if (signal (SIGILL, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGILL, SIG_IGN);
- if (signal (SIGTRAP, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGTRAP, SIG_IGN);
- if (signal (SIGIOT, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGIOT, SIG_IGN);
- #endif /* ! MSDOS */
- #ifdef SIGEMT
- if (signal (SIGEMT, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGEMT, SIG_IGN);
- #endif
- #ifdef SIGDANGER
- if (signal (SIGDANGER, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGDANGER, SIG_IGN);
- #endif
- if (signal (SIGFPE, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGFPE, SIG_IGN);
- #ifndef MSDOS
- if (signal (SIGBUS, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGBUS, SIG_IGN);
- if (signal (SIGSEGV, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGSEGV, SIG_IGN);
- if (signal (SIGSYS, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGSYS, SIG_IGN);
- if (signal (SIGTERM, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGTERM, SIG_IGN);
- #endif /* ! MSDOS */
- #ifdef SIGXCPU
- if (signal (SIGXCPU, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGXCPU, SIG_IGN);
- #endif
- #ifdef SIGXFSZ
- if (signal (SIGXFSZ, fatal_error_signal) == SIG_IGN)
- (void) signal (SIGXFSZ, SIG_IGN);
- #endif
-
- /* Make sure stdout is line-buffered. */
-
- #if defined(USGr3) || defined(HPUX) || defined(hpux) || defined (MSDOS)
- setvbuf (stdout, (char *) 0, _IOLBF, BUFSIZ);
- #else /* Not USGr3 and not HPUX. */
- #ifdef USG
- setvbuf (stdout, _IOLBF, (char *) 0, BUFSIZ);
- #else /* Not USG. */
- setlinebuf (stdout);
- #endif /* USG. */
- #endif /* USGr3. */
-
- /* Figure out where this program lives. */
-
- if (argv[0] == 0)
- argv[0] = "";
- if (argv[0][0] == '\0')
- program = "make";
- else
- {
- program = rindex (argv[0], '/');
- if (program == 0)
- program = argv[0];
- else
- ++program;
- }
-
- /* Figure out where we are. */
-
- #ifdef USG
- /* In some System V's, `getcwd' spawns a child running /bin/pwd. */
- block_children ();
- #endif
- if (getwd (current_directory) == 0)
- {
- error ("getwd: %s", current_directory);
- current_directory[0] = '\0';
- }
- #ifdef USG
- unblock_children ();
- #endif
-
- /* Read in variables from the environment. It is important that this be
- done before `MAKE' and `MAKEOVERRIDES' are figured out so their
- definitions will not be ones from the environment. */
-
- for (i = 0; envp[i] != 0; ++i)
- {
- register char *ep = envp[i];
- while (*ep++ != '=')
- ;
- (void) define_variable (envp[i], ep - envp[i] - 1, ep, o_env, 1);
- }
-
- /* Decode the switches. */
-
- decode_switches (argc, argv);
-
- /* Print version information. */
-
- if (print_version_flag || print_data_base_flag || debug_flag)
- print_version ();
-
- /* Construct the list of include directories to search. */
-
- construct_include_path (include_directories == 0 ? (char **) 0
- : include_directories->list);
-
- /* Search for command line arguments that define variables,
- and do the definitions. Also save up the text of these
- arguments in CMD_DEFS so we can put them into the values
- of $(MAKEOVERRIDES) and $(MAKE). */
-
- cmd_defs_len = 200;
- cmd_defs = (char *) xmalloc (cmd_defs_len);
- cmd_defs_idx = 0;
-
- for (i = 1; other_args->list[i] != 0; ++i)
- /* Try a variable definition. */
- if (try_variable_definition (other_args->list[i], o_command))
- {
- /* It succeeded. The variable is already defined.
- Backslash-quotify it and append it to CMD_DEFS, then clobber it
- to 0 in the list so that it won't be taken for a goal target. */
- register char *p = other_args->list[i];
- unsigned int l = strlen (p);
- if (cmd_defs_idx + (l * 2) + 1 > cmd_defs_len)
- {
- if (l * 2 > cmd_defs_len)
- cmd_defs_len += l * 2;
- else
- cmd_defs_len *= 2;
- cmd_defs = (char *) xrealloc (cmd_defs, cmd_defs_len);
- }
-
- while (*p != '\0')
- {
- if (index ("'\"*?[]$<>(){}|&~`\\ \t\r\n\f\v", *p) != 0)
- cmd_defs[cmd_defs_idx++] = '\\';
- cmd_defs[cmd_defs_idx++] = *p++;
- }
- cmd_defs[cmd_defs_idx++] = ' ';
- }
- else
- {
- /* It was not a variable definition, so it is a target to be made.
- Enter it as a file and add it to the dep chain of goals. */
- f = enter_file (other_args->list[i]);
- f->cmd_target = 1;
-
- if (goals == 0)
- {
- goals = (struct dep *) xmalloc (sizeof (struct dep));
- lastgoal = goals;
- }
- else
- {
- lastgoal->next = (struct dep *) xmalloc (sizeof (struct dep));
- lastgoal = lastgoal->next;
- }
- lastgoal->name = 0;
- lastgoal->file = f;
- }
-
- if (cmd_defs_idx > 0)
- {
- cmd_defs[cmd_defs_idx - 1] = '\0';
- (void) define_variable ("MAKEOVERRIDES", 13, cmd_defs, o_override, 0);
- }
-
- /* Set the "MAKE" variable to the name we were invoked with.
- (If it is a relative pathname with a slash, prepend our directory name
- so the result will run the same program regardless of the current dir.
- If it is a name with no slash, we can only hope that PATH did not
- find it in the current directory.)
-
- Append the command-line variable definitions gathered above
- so sub-makes will get them as command-line definitions. */
-
- #ifdef MSDOS
- if (current_directory[0] != '\0' && argv[0] != 0
- && argv[0][1] != ':' && argv[0][0] != '/' && index (argv[0], '/') != 0)
- #else /* not MSDOS */
- if (current_directory[0] != '\0'
- && argv[0] != 0 && argv[0][0] != '/' && index (argv[0], '/') != 0)
- #endif /* not MSDOS */
- argv[0] = concat (current_directory, "/", argv[0]);
-
- if (cmd_defs_idx > 0)
- {
- char *str = concat (argv[0], " ", cmd_defs);
- (void) define_variable ("MAKE", 4, str, o_env, 0);
- free (str);
- }
- else
- (void) define_variable ("MAKE", 4, argv[0], o_env, 0);
-
- free (cmd_defs);
-
- /* If there were -c flags, move ourselves about. */
-
- if (directories != 0)
- for (i = 0; directories->list[i] != 0; ++i)
- {
- char *dir = directories->list[i];
- if (chdir (dir) < 0)
- pfatal_with_name (dir);
- }
-
- /* Figure out the level of recursion. */
- {
- struct variable *v = lookup_variable ("MAKELEVEL", 9);
- if (v != 0 && *v->value != '\0' && *v->value != '-')
- makelevel = (unsigned int) atoi (v->value);
- else
- makelevel = 0;
- }
-
- /* Tell the user where he is. */
-
- if (print_directory_flag)
- log_working_directory (1);
-
- /* Read any stdin makefiles into temporary files. */
-
- if (makefiles != 0)
- {
- register unsigned int i;
- for (i = 0; i < makefiles->idx; ++i)
- if (makefiles->list[i][0] == '-' && makefiles->list[i][1] == '\0')
- {
- /* This makefile is standard input. Since we may re-exec
- and thus re-read the makefiles, we read standard input
- into a temporary file and read from that. */
- #ifdef MSDOS /* Can't use $TMP, sice it may contain a `:' */
- static char name[] = "./GmXXXXXX";
- #else /* not MSDOS */
- static char name[] = "/tmp/GmXXXXXX";
- #endif /* not MSDOS */
- FILE *outfile;
-
- /* Free the storage allocated for "-". */
- free (makefiles->list[i]);
-
- /* Make a unique filename. */
- (void) mktemp (name);
-
- outfile = fopen (name, "w");
- if (outfile == 0)
- pfatal_with_name ("fopen (temporary file)");
- while (!feof (stdin))
- {
- char buf[2048];
- int n = fread (buf, 1, sizeof(buf), stdin);
- if (n > 0 && fwrite (buf, 1, n, outfile) != n)
- pfatal_with_name ("fwrite (temporary file)");
- }
- /* Try to make sure we won't remake the temporary
- file when we are re-exec'd. Kludge-o-matic! */
- fprintf (outfile, "%s:;\n", name);
- (void) fclose (outfile);
-
- /* Replace the name that read_all_makefiles with
- see with the name of the temporary file. */
- makefiles->list[i] = savestring (name, sizeof name - 1);
-
- /* Make sure the temporary file will not be remade. */
- f = enter_file (savestring (name, sizeof name - 1));
- f->updated = 1;
- f->update_status = 0;
- /* Let it be removed when we're done. */
- f->intermediate = 1;
- /* But don't mention it. */
- f->dontcare = 1;
- }
- }
-
- /* Set up to handle children dying. This must be done before
- reading in the makefiles so that `shell' function calls will work. */
-
- #ifndef MSDOS
- #ifdef SIGCHLD
- (void) signal (SIGCHLD, child_handler);
- #else
- (void) signal (SIGCLD, child_handler);
- #endif
- #endif /* ! MSDOS */
-
- /* Install the default implicit rules. */
-
- install_default_implicit_rules ();
-
- /* Define the initial list of suffixes for old-style rules. */
-
- set_default_suffixes ();
-
- /* Define some internal and special variables. */
-
- define_automatic_variables ();
-
- /* Set up the MAKEFLAGS and MFLAGS variables
- so makefiles can look at them. */
-
- define_makeflags (0);
-
- /* Read all the makefiles. */
-
- default_file = enter_file (".DEFAULT");
-
- read_makefiles
- = read_all_makefiles (makefiles == 0 ? (char **) 0 : makefiles->list);
-
- decode_env_switches ("MAKEFLAGS", 9);
- decode_env_switches ("MFLAGS", 6);
-
- /* Set up MAKEFLAGS and MFLAGS again, so they will be right. */
-
- define_makeflags (1);
-
- ignore_errors_flag |= lookup_file (".IGNORE") != 0;
-
- silent_flag |= lookup_file (".SILENT") != 0;
-
- /* Make each `struct dep' point at the
- `struct file' for the file depended on. */
-
- snap_deps ();
-
- /* Convert old-style suffix rules to pattern rules. */
-
- convert_to_pattern ();
-
- /* Recompute the implicit rule limits. */
-
- count_implicit_rule_limits ();
-
- /* Construct the listings of directories in VPATH lists. */
-
- build_vpath_lists ();
-
- /* Mark files given with -o flags as very old (00:00:01.00 Jan 1, 1970)
- and as having been updated already, and files given with -W flags
- as brand new (time-stamp of now). */
-
- if (old_files != 0)
- for (p = old_files->list; *p != 0; ++p)
- {
- f = enter_file (*p);
- f->last_mtime = (time_t) 1;
- f->updated = 1;
- f->update_status = 0;
- }
-
- if (new_files != 0)
- {
- now = time ((time_t *) 0);
- for (p = new_files->list; *p != 0; ++p)
- {
- f = enter_file (*p);
- f->last_mtime = now;
- }
- }
-
- if (read_makefiles != 0)
- {
- /* Update any makefiles if necessary. */
-
- time_t *makefile_mtimes = 0;
- unsigned int mm_idx = 0;
-
- if (debug_flag)
- puts ("Updating makefiles....");
-
- /* Remove any makefiles we don't want to try to update.
- Also record the current modtimes so we can compare them later. */
- {
- register struct dep *d, *last;
- last = 0;
- d = read_makefiles;
- while (d != 0)
- {
- register struct file *f = d->file;
- if (f->is_target && f->deps == 0)
- {
- /* This makefile is a target, but has no dependencies.
- So, it will always be remade. This might well cause
- an infinite loop, so don't try to remake it.
- (This will only happen if your makefiles are written
- exceptionally stupidly; but if you work for Athena,
- that is how you write makefiles.) */
-
- if (debug_flag)
- printf ("Makefile `%s' might loop; not remaking it.",
- f->name);
-
- if (last == 0)
- read_makefiles = d->next;
- else
- last->next = d->next;
-
- /* Free the storage. */
- free ((char *) d);
-
- d = last == 0 ? 0 : last->next;
- }
- else
- {
- if (makefile_mtimes == 0)
- makefile_mtimes = (time_t *) xmalloc (sizeof (time_t));
- else
- makefile_mtimes = (time_t *)
- xrealloc ((char *) makefile_mtimes,
- (mm_idx + 1) * sizeof (time_t));
- makefile_mtimes[mm_idx++] = file_mtime_no_search (d->file);
- last = d;
- d = d->next;
- }
- }
- }
-
- switch (update_goal_chain (read_makefiles, 1))
- {
- default:
- abort ();
-
- case -1:
- /* Did nothing. */
- break;
-
- case 1:
- /* Failed to update. Figure out if we care. */
- {
- /* Nonzero if any makefile was successfully remade. */
- int any_remade = 0;
- /* Nonzero if any makefile we care about failed
- in updating or could not be found at all. */
- int any_failed = 0;
- register unsigned int i;
-
- for (i = 0; read_makefiles != 0; ++i)
- {
- struct dep *d = read_makefiles;
- read_makefiles = d->next;
- if (d->file->updated)
- {
- /* This makefile was updated. */
- if (d->file->update_status == 0)
- {
- /* It was successfully updated. */
- any_remade |= (file_mtime_no_search (d->file)
- != makefile_mtimes[i]);
- }
- else if (d->changed != 1)
- {
- time_t mtime;
- /* The update failed and this makefile was not
- from the MAKEFILES variable, so we care. */
- error ("Failed to remake makefile `%s'.",
- d->file->name);
- mtime = file_mtime_no_search (d->file);
- any_remade |= (mtime != (time_t) -1
- && mtime != makefile_mtimes[i]);
- }
- }
- else
- /* This makefile was not found at all. */
- switch (d->changed)
- {
- case 0:
- /* A normal makefile. We must die later. */
- error ("Makefile `%s' was not found", dep_name (d));
- any_failed = 1;
- break;
- case 1:
- /* A makefile from the MAKEFILES variable.
- We don't care. */
- break;
- case 2:
- /* An included makefile. We don't need
- to die, but we do want to complain. */
- error ("Included makefile `%s' was not found.",
- dep_name (d));
- break;
- }
-
- free ((char *) d);
- }
-
- if (any_remade)
- goto re_exec;
- else if (any_failed)
- die (1);
- else
- break;
- }
-
- case 0:
- re_exec:;
- /* Updated successfully. Re-exec ourselves. */
- if (print_directory_flag)
- log_working_directory (0);
- if (debug_flag)
- puts ("Re-execing myself....");
- if (makefiles != 0)
- {
- /* These names might have changed. */
- register unsigned int i, j = 0;
- for (i = 1; i < argc; ++i)
- if (!strcmp (argv[i], "-f"))
- {
- char *p = &argv[i][2];
- if (*p == '\0')
- argv[++i] = makefiles->list[j];
- else
- argv[i] = concat ("-f", makefiles->list[j], "");
- ++j;
- }
- }
- if (directories != 0 && directories->idx > 0)
- {
- char bad;
- if (current_directory[0] != '\0')
- {
- if (chdir (current_directory) < 0)
- {
- perror_with_name ("chdir", "");
- bad = 1;
- }
- else
- bad = 0;
- }
- else
- bad = 1;
- if (bad)
- fatal ("Couldn't change back to original directory.");
- }
- fflush (stdout);
- fflush (stderr);
- for (p = environ; *p != 0; ++p)
- if (!strncmp (*p, "MAKELEVEL=", 10))
- {
- sprintf (*p, "MAKELEVEL=%u", makelevel);
- break;
- }
- #ifdef MSDOS /* MSC'c execve () will fail with our spawn(). */
- exit (swap_spawnvpe (argv[0], argv, environ));
- #else /* not MSDOS */
- exec_command (argv, environ,
- allocated_variable_expand ("$(PATH)"),
- allocated_variable_expand ("$(SHELL)"));
- #endif /* not MSDOS */
- /* NOTREACHED */
- }
- }
-
- {
- int status;
-
- /* If there were no command-line goals, use the default. */
- if (goals == 0)
- {
- if (default_goal_file != 0)
- {
- goals = (struct dep *) xmalloc (sizeof (struct dep));
- goals->next = 0;
- goals->name = 0;
- goals->file = default_goal_file;
- }
- }
- else
- lastgoal->next = 0;
-
- if (goals != 0)
- {
- /* Update the goals. */
-
- if (debug_flag)
- puts ("Updating goal targets....");
-
- switch (update_goal_chain (goals, 0))
- {
- case -1:
- /* Nothing happened. */
- case 0:
- /* Updated successfully. */
- status = 0;
- break;
- case 1:
- /* Updating failed. */
- status = 1;
- break;
- default:
- abort ();
- }
- }
-
- /* Print the data base under -p. */
- if (print_data_base_flag)
- print_data_base ();
-
- if (goals == 0)
- fatal ("No targets");
-
- /* Exit. */
- die (status);
- }
-
- return 0;
- }
-
- static void
- decode_switches (argc, argv)
- int argc;
- char **argv;
- {
- char bad = 0;
- register unsigned int i;
- register char *sw;
- register struct command_switch *cs;
- register struct stringlist *sl;
- char *arg;
-
- decode_env_switches ("MAKEFLAGS", 9);
- decode_env_switches ("MFLAGS", 6);
-
- other_args = (struct stringlist *) xmalloc (sizeof (struct stringlist));
- other_args->max = 5;
- other_args->list = (char **) xmalloc (5 * sizeof (char *));
- other_args->idx = 1;
- other_args->list[0] = savestring (argv[0], strlen (argv[0]));
-
- for (i = 1; i < argc; i++)
- {
- sw = argv[i];
- if (*sw++ == '-')
- while (*sw != '\0')
- {
- for (cs = switches; cs->c != '\0'; ++cs)
- if (cs->c == *sw)
- {
- ++sw;
- switch (cs->type)
- {
- default:
- abort ();
- case ignore:
- break;
- case flag:
- case flag_off:
- *(int *) cs->value_ptr = cs->type == flag;
- break;
- case string:
- if (*sw == '\0')
- {
- arg = argv[++i];
- if (arg == 0)
- {
- arg = cs->noarg_value;
- if (arg == 0)
- {
- missing_arg:;
- error ("argument required for `-%c' option",
- cs->c);
- bad = 1;
- break;
- }
- }
- }
- else
- arg = sw;
-
- sl = *(struct stringlist **) cs->value_ptr;
- if (sl == 0)
- {
- sl = (struct stringlist *)
- xmalloc (sizeof (struct stringlist));
- sl->max = 5;
- sl->idx = 0;
- sl->list = (char **) xmalloc (5 * sizeof (char *));
- *(struct stringlist **) cs->value_ptr = sl;
- }
- else if (sl->idx == sl->max - 1)
- {
- sl->max += 5;
- sl->list = (char **)
- xrealloc ((char *) sl->list,
- sl->max * sizeof (char *));
- }
- sl->list[sl->idx++] = savestring (arg, strlen (arg));
- sl->list[sl->idx] = 0;
- sw = "";
- break;
-
- case positive_int:
- if (*sw == '\0')
- arg = argv[++i];
- else
- arg = sw;
- if (arg != 0 && isdigit (*arg))
- {
- int i = atoi (arg);
- while (isdigit (*arg))
- ++arg;
- if (i < 1)
- error ("the `-%c' option requires a \
- positive integral argument",
- cs->c);
- else
- *(unsigned int *) cs->value_ptr = i;
- }
- else
- {
- if (cs->noarg_value != 0)
- *(unsigned int *) cs->value_ptr
- = *(unsigned int *) cs->noarg_value;
- else
- {
- error ("the `-%c' option requires an argument",
- cs->c);
- bad = 1;
- }
-
- if (arg == argv[i])
- /* We moved to the next arg, so move back. */
- --i;
- }
- sw = "";
- break;
-
- case floating:
- if (*sw == '\0')
- arg = argv[++i];
- else
- arg = sw;
- if (arg != 0 && (*arg == '.' || isdigit (*arg)))
- {
- *(double *) cs->value_ptr = atof (arg);
- while (*arg == '.' || isdigit (*arg))
- ++arg;
- }
- else
- {
- if (cs->noarg_value != 0)
- *(double *) cs->value_ptr
- = *(double *) cs->noarg_value;
- else
- {
- error ("the `-%c' option requires an argument",
- cs->c);
- bad = 1;
- }
-
- if (arg == argv[i])
- /* We moved to the next arg, so move back. */
- --i;
- }
- sw = "";
- break;
- }
-
- /* We've found the switch. Stop looking. */
- break;
- }
-
- if (cs->c == '\0')
- {
- error ("unknown option `-%c'", *sw++);
- bad = 1;
- }
- }
- else
- {
- if (other_args->idx == other_args->max - 1)
- {
- other_args->max += 5;
- other_args->list = (char **)
- xrealloc ((char *) other_args->list,
- other_args->max * sizeof (char *));
- }
- other_args->list[other_args->idx++] = argv[i];
- }
- }
-
- if (other_args != 0)
- other_args->list[other_args->idx] = 0;
-
- if (bad)
- die (1);
- }
-
- static void
- decode_env_switches (envar, len)
- char *envar;
- unsigned int len;
- {
- struct variable *v;
- register char *args;
- register struct command_switch *cs;
-
- v = lookup_variable (envar, len);
- if (v == 0 || *v->value == '\0')
- return;
-
- for (args = v->value; *args != '\0'; ++args)
- for (cs = switches; cs->c != '\0'; ++cs)
- if (cs->c == *args)
- if (cs->env)
- switch (cs->type)
- {
- case string:
- /* None of these allow environment changes. */
- default:
- abort ();
- case flag:
- case flag_off:
- *(int *) cs->value_ptr = cs->type == flag;
- break;
- case positive_int:
- while (isspace (args[1]))
- ++args;
- if (isdigit(args[1]))
- {
- int i = atoi (&args[1]);
- while (isdigit (args[1]))
- ++args;
- if (i >= 1)
- *(unsigned int *) cs->value_ptr = i;
- }
- else
- *(unsigned int *) cs->value_ptr
- = *(unsigned int *) cs->noarg_value;
- break;
- case floating:
- while (isspace (args[1]))
- ++args;
- if (args[1] == '.' || isdigit (args[1]))
- {
- *(double *) cs->value_ptr = atof (&args[1]);
- while (args[1] == '.' || isdigit (args[1]))
- ++args;
- }
- else
- *(double *) cs->value_ptr = *(double *) cs->noarg_value;
- break;
- }
- }
-
- /* Define the MAKEFLAGS and MFLAGS variables to reflect the settings of the
- command switches. Include positive_int and floating options if PF. */
-
- static void
- define_makeflags (pf)
- int pf;
- {
- register struct command_switch *cs;
- char flags[200];
- register unsigned int i;
-
- i = 0;
- for (cs = switches; cs->c != '\0'; ++cs)
- if (cs->toenv)
- {
- if (i == 0 || flags[i - 1] == ' ')
- flags[i++] = '-';
- switch (cs->type)
- {
- default:
- abort ();
-
- case ignore:
- break;
-
- case flag:
- case flag_off:
- if ((cs->default_value != 0
- && *(int *) cs->value_ptr != *(int *) cs->default_value)
- || !*(int *) cs->value_ptr == (cs->type == flag_off))
- flags[i++] = cs->c;
- break;
-
- case positive_int:
- if (pf)
- {
- if ((cs->default_value != 0
- && (*(unsigned int *) cs->value_ptr
- == *(unsigned int *) cs->default_value)))
- break;
- else if (cs->noarg_value != 0
- && (*(unsigned int *) cs->value_ptr ==
- *(unsigned int *) cs->noarg_value))
- flags[i++] = cs->c;
- else
- {
- unsigned int value;
- if (cs->c == 'j')
- value = 1;
- else
- value = *(unsigned int *) cs->value_ptr;
- sprintf (&flags[i], "%c%u ", cs->c, value);
- i += strlen (&flags[i]);
- }
- }
- break;
-
- case floating:
- if (pf)
- {
- if (cs->default_value != 0
- && (*(double *) cs->value_ptr
- == *(double *) cs->default_value))
- break;
- else if (cs->noarg_value != 0
- && (*(double *) cs->value_ptr
- == *(double *) cs->noarg_value))
- flags[i++] = cs->c;
- else
- {
- sprintf (&flags[i], "%c%f ",
- cs->c, *(double *) cs->value_ptr);
- i += strlen (&flags[i]);
- }
- }
- break;
- }
- }
-
- if (i == 0)
- flags[0] = flags[1] = '\0';
- else if (flags[i - 1] == ' ' || flags[i - 1] == '-')
- flags[i - 1] = '\0';
- else
- flags[i] = '\0';
-
- /* On Sun, the value of MFLAGS starts with a `-' but the
- value of MAKEFLAGS lacks the `-'. Be compatible. */
- (void) define_variable ("MAKEFLAGS", 9, &flags[1], o_env, 0);
- (void) define_variable ("MFLAGS", 6, flags, o_env, 0);
- }
-
- static int printed_version = 0;
-
- /* Print version information. */
-
- static void
- print_version ()
- {
- extern char *remote_description;
- char *precede = print_data_base_flag ? "# " : "";
-
- printf ("%sGNU Make version %s", precede, version_string);
- if (remote_description != 0 && *remote_description != '\0')
- printf ("-%s", remote_description);
-
- printf (", by Richard Stallman and Roland McGrath.\n\
- %sCopyright (C) 1988, 1989, 1990 Free Software Foundation, Inc.\n\
- %sThis is free software; see the source for copying conditions.\n\
- %sThere is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
- %sPARTICULAR PURPOSE.\n\n", precede, precede, precede, precede);
-
- #ifdef MSDOS
- printf ("%sMS-DOS port (C) 1990 by Thorsten Ohl <ohl@gnu.ai.mit.edu>\n\
- %sthis is a beta version, compiled %s.\n\n",
- precede, precede, msdos_version_string);
- #endif /* MSDOS */
-
- printed_version = 1;
-
- /* Flush stdout so the user doesn't have to wait to see the
- version information while things are thought about. */
- fflush (stdout);
- }
-
- /* Print a bunch of information about this and that. */
-
- static void
- print_data_base ()
- {
- extern char *ctime ();
- time_t when;
-
- when = time ((time_t *) 0);
- printf ("\n# Make data base, printed on %s", ctime (&when));
-
- print_variable_data_base ();
- print_dir_data_base ();
- print_rule_data_base ();
- print_file_data_base ();
- print_vpath_data_base ();
-
- when = time ((time_t *) 0);
- printf ("\n# Finished Make data base on %s\n", ctime (&when));
- }
-
- /* Exit with STATUS, cleaning up as necessary. */
-
- void
- die (status)
- int status;
- {
- static char dying = 0;
-
- if (!dying)
- {
- dying = 1;
-
- if (print_version_flag && !printed_version)
- print_version ();
-
- /* Wait for children to die. */
- wait_for_children (0, status != 0);
-
- /* Remove the intermediate files. */
-
- remove_intermediates (0);
-
- if (print_directory_flag)
- log_working_directory (0);
- }
-
- #ifdef MSDOS
- if (directories != 0 && directories->idx > 0)
- {
- char bad;
- if (current_directory[0] != '\0')
- {
- if (chdir (current_directory) < 0)
- {
- perror_with_name ("chdir", "");
- bad = 1;
- }
- else
- bad = 0;
- }
- else
- bad = 1;
- if (bad)
- fatal ("Couldn't change back to original directory.");
- }
- #endif / MSDOS */
-
- exit (status);
- }
-
- /* Write a message indicating that we've just entered or
- left (according to ENTERING) the current directory. */
-
- static void
- log_working_directory (entering)
- int entering;
- {
- static int entered = 0;
- char pwdbuf[MAXPATHLEN];
- char *message = entering ? "Entering" : "Leaving";
-
- if (entered && entering)
- /* Don't print the leaving message if we
- haven't printed the entering message. */
- return;
- else
- entered = 1;
-
- if (print_data_base_flag)
- fputs ("# ", stdout);
-
- if (makelevel == 0)
- printf ("%s: %s ", program, message);
- else
- printf ("%s[%u]: %s ", program, makelevel, message);
-
- #ifdef USG
- /* In some System V's, `getcwd' spawns a child running /bin/pwd. */
- block_children ();
- #endif
- if (getwd (pwdbuf) == 0)
- printf ("an unknown directory (getwd: %s)\n", pwdbuf);
- else
- printf ("directory `%s'\n", pwdbuf);
- #ifdef USG
- unblock_children ();
- #endif
- }
-