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main.c
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/* Argument parsing and main program of GNU Make.
Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 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 2, 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, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. */
#include "make.h"
#include "dep.h"
#include "filedef.h"
#include "variable.h"
#include "job.h"
#include "commands.h"
#include "rule.h"
#include "debug.h"
#include "getopt.h"
#include <assert.h>
#ifdef _AMIGA
# include <dos/dos.h>
# include <proto/dos.h>
#endif
#ifdef WINDOWS32
#include <windows.h>
#include <io.h>
#include "pathstuff.h"
#endif
#ifdef __EMX__
# include <sys/types.h>
# include <sys/wait.h>
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#if defined(HAVE_SYS_RESOURCE_H) && defined(HAVE_GETRLIMIT) && defined(HAVE_SETRLIMIT)
# define SET_STACK_SIZE
#endif
#ifdef SET_STACK_SIZE
# include <sys/resource.h>
#endif
#ifdef _AMIGA
int __stack = 20000; /* Make sure we have 20K of stack space */
#endif
extern void init_dir PARAMS ((void));
extern void remote_setup PARAMS ((void));
extern void remote_cleanup PARAMS ((void));
extern RETSIGTYPE fatal_error_signal PARAMS ((int sig));
extern void print_variable_data_base PARAMS ((void));
extern void print_dir_data_base PARAMS ((void));
extern void print_rule_data_base PARAMS ((void));
extern void print_file_data_base PARAMS ((void));
extern void print_vpath_data_base PARAMS ((void));
#if defined HAVE_WAITPID || defined HAVE_WAIT3
# define HAVE_WAIT_NOHANG
#endif
#ifndef HAVE_UNISTD_H
extern int chdir ();
#endif
#ifndef STDC_HEADERS
# ifndef sun /* Sun has an incorrect decl in a header. */
extern void exit PARAMS ((int)) __attribute__ ((noreturn));
# endif
extern double atof ();
#endif
static void clean_jobserver PARAMS ((int status));
static void print_data_base PARAMS ((void));
static void print_version PARAMS ((void));
static void decode_switches PARAMS ((int argc, char **argv, int env));
static void decode_env_switches PARAMS ((char *envar, unsigned int len));
static void define_makeflags PARAMS ((int all, int makefile));
static char *quote_for_env PARAMS ((char *out, char *in));
static void initialize_global_hash_tables PARAMS ((void));
#if defined(__APPLE__) || defined(NeXT) || defined(NeXT_PDO)
/*
* The various Apple, NeXT, and NeXT PDO hacks are no longer enabled by
* default, so that default behaves matches GNU make.
*
* The hacks can be enabled selectively enabling the following options.
* They can be enabled by setting the variable USE_APPLE_PB_SUPPORT to one
* or more of the options, or by specify "-N <option>" on the command line.
*
* all Turn on all NeXT features.
*
* makefiles DON'T remake Makefiles
*
* quiet Be quiet: warn about using vpath compatibility
* mode or missing targets or overriding implicit rules.
*
* vpath Use the System V vpath compatibility mode.
*
* errexit Use "sh -ec" (instead of "sh -c") to execute rules.
*/
#endif
/* The structure that describes an accepted command switch. */
struct command_switch
{
int 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. */
positive_int, /* A positive integer. */
floating, /* A floating-point number (double). */
ignore /* Ignored. */
} type;
char *value_ptr; /* Pointer to the value-holding variable. */
unsigned int env:1; /* Can come from MAKEFLAGS. */
unsigned int toenv:1; /* Should be put in MAKEFLAGS. */
unsigned int no_makefile:1; /* Don't propagate when remaking makefiles. */
char *noarg_value; /* Pointer to value used if no argument is given. */
char *default_value;/* Pointer to default value. */
char *long_name; /* Long option name. */
};
/* True if C is a switch value that corresponds to a short option. */
#define short_option(c) ((c) <= CHAR_MAX)
/* 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 info (--debug). */
static struct stringlist *db_flags;
static int debug_flag = 0;
int db_level = 0;
#ifdef WINDOWS32
/* Suspend make in main for a short time to allow debugger to attach */
int suspend_flag = 0;
#endif
/* 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) / variables (-R). */
int no_builtin_rules_flag = 0;
int no_builtin_variables_flag = 0;
/* Nonzero means keep going even if remaking some file fails (-k). */
int keep_going_flag;
int default_keep_going_flag = 0;
/* we are required to track these so we can show them in MAKEFLAGS rather
then merely showing the current state */
int seen_k_switch = 0, seen_S_switch = 0;
/* Nonzero means check symlink mtimes. */
int check_symlink_flag = 0;
/* Nonzero means print directory before starting and when done (-w). */
int print_directory_flag = 0;
/* Nonzero means ignore print_directory_flag and never print the directory.
This is necessary because print_directory_flag is set implicitly. */
int inhibit_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;
#if defined(__APPLE__) || defined(NeXT) || defined(NeXT_PDO)
/* Apple's hacks are OFF by default, and are enabled by putting the
"use-apple-pbhacks-*" directives in the pb_makefiles. */
unsigned int next_flag = 0;
static struct stringlist *next_flag_list = 0;
#endif
/* Number of job slots (commands that can be run at once). */
unsigned int job_slots = 1;
unsigned int default_job_slots = 1;
static unsigned int master_job_slots = 0;
/* Value of job_slots that means no limit. */
static unsigned int inf_jobs = 0;
/* File descriptors for the jobs pipe. */
static struct stringlist *jobserver_fds = 0;
int job_fds[2] = { -1, -1 };
int job_rfd = -1;
/* 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). */
#ifndef NO_FLOAT
double max_load_average = -1.0;
double default_load_average = -1.0;
#else
int max_load_average = -1;
int default_load_average = -1;
#endif
/* 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;
/* If nonzero, we should just print usage and exit. */
static int print_usage_flag = 0;
/* If nonzero, we should print a warning message
for each reference to an undefined variable. */
int warn_undefined_variables_flag;
/* If nonzero, always build all targets, regardless of whether
they appear out of date or not. */
static int always_make_set = 0;
int always_make_flag = 0;
/* If nonzero, we're in the "try to rebuild makefiles" phase. */
int rebuilding_makefiles = 0;
/* Remember the original value of the SHELL variable, from the environment. */
struct variable shell_var;
/* The usage output. We write it this way to make life easier for the
translators, especially those trying to translate to right-to-left
languages like Hebrew. */
static const char *const usage[] =
{
N_("Options:\n"),
N_("\
-b, -m Ignored for compatibility.\n"),
N_("\
-B, --always-make Unconditionally make all targets.\n"),
N_("\
-C DIRECTORY, --directory=DIRECTORY\n\
Change to DIRECTORY before doing anything.\n"),
N_("\
-d Print lots of debugging information.\n"),
N_("\
--debug[=FLAGS] Print various types of debugging information.\n"),
N_("\
-e, --environment-overrides\n\
Environment variables override makefiles.\n"),
N_("\
-f FILE, --file=FILE, --makefile=FILE\n\
Read FILE as a makefile.\n"),
N_("\
-h, --help Print this message and exit.\n"),
N_("\
-i, --ignore-errors Ignore errors from commands.\n"),
N_("\
-I DIRECTORY, --include-dir=DIRECTORY\n\
Search DIRECTORY for included makefiles.\n"),
N_("\
-j [N], --jobs[=N] Allow N jobs at once; infinite jobs with no arg.\n"),
N_("\
-k, --keep-going Keep going when some targets can't be made.\n"),
N_("\
-l [N], --load-average[=N], --max-load[=N]\n\
Don't start multiple jobs unless load is below N.\n"),
N_("\
-L, --check-symlink-times Use the latest mtime between symlinks and target.\n"),
N_("\
-n, --just-print, --dry-run, --recon\n\
Don't actually run any commands; just print them.\n"),
N_("\
-o FILE, --old-file=FILE, --assume-old=FILE\n\
Consider FILE to be very old and don't remake it.\n"),
N_("\
-p, --print-data-base Print make's internal database.\n"),
N_("\
-q, --question Run no commands; exit status says if up to date.\n"),
N_("\
-r, --no-builtin-rules Disable the built-in implicit rules.\n"),
N_("\
-R, --no-builtin-variables Disable the built-in variable settings.\n"),
N_("\
-s, --silent, --quiet Don't echo commands.\n"),
N_("\
-S, --no-keep-going, --stop\n\
Turns off -k.\n"),
N_("\
-t, --touch Touch targets instead of remaking them.\n"),
N_("\
-v, --version Print the version number of make and exit.\n"),
N_("\
-w, --print-directory Print the current directory.\n"),
N_("\
--no-print-directory Turn off -w, even if it was turned on implicitly.\n"),
N_("\
-W FILE, --what-if=FILE, --new-file=FILE, --assume-new=FILE\n\
Consider FILE to be infinitely new.\n"),
N_("\
--warn-undefined-variables Warn when an undefined variable is referenced.\n"),
#if defined(__APPLE__) || defined(NeXT) || defined(NeXT_PDO)
N_("\
-N OPTION, --NeXT-option=OPTION\n\
Turn on value of NeXT OPTION.\n"),
#endif /* __APPLE__ || NeXT || NeXT_PDO */
NULL
};
/* The table of command switches. */
static const struct command_switch switches[] =
{
{ 'b', ignore, 0, 0, 0, 0, 0, 0, 0 },
{ 'B', flag, (char *) &always_make_set, 1, 1, 0, 0, 0, "always-make" },
{ 'C', string, (char *) &directories, 0, 0, 0, 0, 0, "directory" },
{ 'd', flag, (char *) &debug_flag, 1, 1, 0, 0, 0, 0 },
{ CHAR_MAX+1, string, (char *) &db_flags, 1, 1, 0, "basic", 0, "debug" },
#ifdef WINDOWS32
{ 'D', flag, (char *) &suspend_flag, 1, 1, 0, 0, 0, "suspend-for-debug" },
#endif
{ 'e', flag, (char *) &env_overrides, 1, 1, 0, 0, 0,
"environment-overrides", },
{ 'f', string, (char *) &makefiles, 0, 0, 0, 0, 0, "file" },
{ 'h', flag, (char *) &print_usage_flag, 0, 0, 0, 0, 0, "help" },
{ 'i', flag, (char *) &ignore_errors_flag, 1, 1, 0, 0, 0,
"ignore-errors" },
{ 'I', string, (char *) &include_directories, 1, 1, 0, 0, 0,
"include-dir" },
{ 'j', positive_int, (char *) &job_slots, 1, 1, 0, (char *) &inf_jobs,
(char *) &default_job_slots, "jobs" },
{ CHAR_MAX+2, string, (char *) &jobserver_fds, 1, 1, 0, 0, 0,
"jobserver-fds" },
{ 'k', flag, (char *) &keep_going_flag, 1, 1, 0, 0,
(char *) &default_keep_going_flag, "keep-going" },
#ifndef NO_FLOAT
{ 'l', floating, (char *) &max_load_average, 1, 1, 0,
(char *) &default_load_average, (char *) &default_load_average,
"load-average" },
#else
{ 'l', positive_int, (char *) &max_load_average, 1, 1, 0,
(char *) &default_load_average, (char *) &default_load_average,
"load-average" },
#endif
{ 'L', flag, (char *) &check_symlink_flag, 1, 1, 0, 0, 0,
"check-symlink-times" },
{ 'm', ignore, 0, 0, 0, 0, 0, 0, 0 },
{ 'n', flag, (char *) &just_print_flag, 1, 1, 1, 0, 0, "just-print" },
{ 'o', string, (char *) &old_files, 0, 0, 0, 0, 0, "old-file" },
{ 'p', flag, (char *) &print_data_base_flag, 1, 1, 0, 0, 0,
"print-data-base" },
{ 'q', flag, (char *) &question_flag, 1, 1, 1, 0, 0, "question" },
{ 'r', flag, (char *) &no_builtin_rules_flag, 1, 1, 0, 0, 0,
"no-builtin-rules" },
{ 'R', flag, (char *) &no_builtin_variables_flag, 1, 1, 0, 0, 0,
"no-builtin-variables" },
{ 's', flag, (char *) &silent_flag, 1, 1, 0, 0, 0, "silent" },
{ 'S', flag_off, (char *) &keep_going_flag, 1, 1, 0, 0,
(char *) &default_keep_going_flag, "no-keep-going" },
{ 't', flag, (char *) &touch_flag, 1, 1, 1, 0, 0, "touch" },
{ 'v', flag, (char *) &print_version_flag, 1, 1, 0, 0, 0, "version" },
{ 'w', flag, (char *) &print_directory_flag, 1, 1, 0, 0, 0,
"print-directory" },
{ CHAR_MAX+3, flag, (char *) &inhibit_print_directory_flag, 1, 1, 0, 0, 0,
"no-print-directory" },
{ 'W', string, (char *) &new_files, 0, 0, 0, 0, 0, "what-if" },
{ CHAR_MAX+4, flag, (char *) &warn_undefined_variables_flag, 1, 1, 0, 0, 0,
"warn-undefined-variables" },
#if defined(__APPLE__) || defined(NeXT) || defined(NeXT_PDO)
{ 'N', string, (char *) &next_flag_list, 0, 0, 0, 0, 0, "NeXT-option" },
#endif /* __APPLE__ || NeXT || NeXT_PDO */
{ 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};
/* Secondary long names for options. */
static struct option long_option_aliases[] =
{
{ "quiet", no_argument, 0, 's' },
{ "stop", no_argument, 0, 'S' },
{ "new-file", required_argument, 0, 'W' },
{ "assume-new", required_argument, 0, 'W' },
{ "assume-old", required_argument, 0, 'o' },
{ "max-load", optional_argument, 0, 'l' },
{ "dry-run", no_argument, 0, 'n' },
{ "recon", no_argument, 0, 'n' },
{ "makefile", required_argument, 0, 'f' },
};
/* List of goal targets. */
static struct dep *goals, *lastgoal;
/* List of variables which were defined on the command line
(or, equivalently, in MAKEFLAGS). */
struct command_variable
{
struct command_variable *next;
struct variable *variable;
};
static struct command_variable *command_variables;
/* The name we were invoked with. */
char *program;
/* Our current directory before processing any -C options. */
char *directory_before_chdir;
/* Our current directory after processing all -C options. */
char *starting_directory;
/* 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 the value of the .DEFAULT_GOAL special
variable. */
char ** default_goal_name;
/* 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;
/* Nonzero if we have seen the magic `.POSIX' target.
This turns on pedantic compliance with POSIX.2. */
int posix_pedantic;
/* Nonzero if we have seen the '.SECONDEXPANSION' target.
This turns on secondary expansion of prerequisites. */
int second_expansion;
/* Nonzero if we have seen the `.NOTPARALLEL' target.
This turns off parallel builds for this invocation of make. */
int not_parallel;
/* Nonzero if some rule detected clock skew; we keep track so (a) we only
print one warning about it during the run, and (b) we can print a final
warning at the end of the run. */
int clock_skew_detected;
/* Mask of signals that are being caught with fatal_error_signal. */
#ifdef POSIX
sigset_t fatal_signal_set;
#else
# ifdef HAVE_SIGSETMASK
int fatal_signal_mask;
# endif
#endif
#if !defined HAVE_BSD_SIGNAL && !defined bsd_signal
# if !defined HAVE_SIGACTION
# define bsd_signal signal
# else
typedef RETSIGTYPE (*bsd_signal_ret_t) ();
static bsd_signal_ret_t
bsd_signal (int sig, bsd_signal_ret_t func)
{
struct sigaction act, oact;
act.sa_handler = func;
act.sa_flags = SA_RESTART;
sigemptyset (&act.sa_mask);
sigaddset (&act.sa_mask, sig);
if (sigaction (sig, &act, &oact) != 0)
return SIG_ERR;
return oact.sa_handler;
}
# endif
#endif
static void
initialize_global_hash_tables (void)
{
init_hash_global_variable_set ();
strcache_init ();
init_hash_files ();
hash_init_directories ();
hash_init_function_table ();
}
static struct file *
enter_command_line_file (char *name)
{
if (name[0] == '\0')
fatal (NILF, _("empty string invalid as file name"));
if (name[0] == '~')
{
char *expanded = tilde_expand (name);
if (expanded != 0)
name = expanded; /* Memory leak; I don't care. */
}
/* This is also done in parse_file_seq, so this is redundant
for names read from makefiles. It is here for names passed
on the command line. */
while (name[0] == '.' && name[1] == '/' && name[2] != '\0')
{
name += 2;
while (*name == '/')
/* Skip following slashes: ".//foo" is "foo", not "/foo". */
++name;
}
if (*name == '\0')
{
/* It was all slashes! Move back to the dot and truncate
it after the first slash, so it becomes just "./". */
do
--name;
while (name[0] != '.');
name[2] = '\0';
}
return enter_file (xstrdup (name));
}
/* Toggle -d on receipt of SIGUSR1. */
#ifdef SIGUSR1
static RETSIGTYPE
debug_signal_handler (int sig UNUSED)
{
db_level = db_level ? DB_NONE : DB_BASIC;
}
#endif
static void
decode_debug_flags (void)
{
char **pp;
if (debug_flag)
db_level = DB_ALL;
if (!db_flags)
return;
for (pp=db_flags->list; *pp; ++pp)
{
const char *p = *pp;
while (1)
{
switch (tolower (p[0]))
{
case 'a':
db_level |= DB_ALL;
break;
case 'b':
db_level |= DB_BASIC;
break;
case 'i':
db_level |= DB_BASIC | DB_IMPLICIT;
break;
case 'j':
db_level |= DB_JOBS;
break;
case 'm':
db_level |= DB_BASIC | DB_MAKEFILES;
break;
case 'v':
db_level |= DB_BASIC | DB_VERBOSE;
break;
default:
fatal (NILF, _("unknown debug level specification `%s'"), p);
}
while (*(++p) != '\0')
if (*p == ',' || *p == ' ')
break;
if (*p == '\0')
break;
++p;
}
}
}
#ifdef WINDOWS32
/*
* HANDLE runtime exceptions by avoiding a requestor on the GUI. Capture
* exception and print it to stderr instead.
*
* If ! DB_VERBOSE, just print a simple message and exit.
* If DB_VERBOSE, print a more verbose message.
* If compiled for DEBUG, let exception pass through to GUI so that
* debuggers can attach.
*/
LONG WINAPI
handle_runtime_exceptions( struct _EXCEPTION_POINTERS *exinfo )
{
PEXCEPTION_RECORD exrec = exinfo->ExceptionRecord;
LPSTR cmdline = GetCommandLine();
LPSTR prg = strtok(cmdline, " ");
CHAR errmsg[1024];
#ifdef USE_EVENT_LOG
HANDLE hEventSource;
LPTSTR lpszStrings[1];
#endif
if (! ISDB (DB_VERBOSE))
{
sprintf(errmsg,
_("%s: Interrupt/Exception caught (code = 0x%lx, addr = 0x%lx)\n"),
prg, exrec->ExceptionCode, (DWORD)exrec->ExceptionAddress);
fprintf(stderr, errmsg);
exit(255);
}
sprintf(errmsg,
_("\nUnhandled exception filter called from program %s\nExceptionCode = %lx\nExceptionFlags = %lx\nExceptionAddress = %lx\n"),
prg, exrec->ExceptionCode, exrec->ExceptionFlags,
(DWORD)exrec->ExceptionAddress);
if (exrec->ExceptionCode == EXCEPTION_ACCESS_VIOLATION
&& exrec->NumberParameters >= 2)
sprintf(&errmsg[strlen(errmsg)],
(exrec->ExceptionInformation[0]
? _("Access violation: write operation at address %lx\n")
: _("Access violation: read operation at address %lx\n")),
exrec->ExceptionInformation[1]);
/* turn this on if we want to put stuff in the event log too */
#ifdef USE_EVENT_LOG
hEventSource = RegisterEventSource(NULL, "GNU Make");
lpszStrings[0] = errmsg;
if (hEventSource != NULL)
{
ReportEvent(hEventSource, /* handle of event source */
EVENTLOG_ERROR_TYPE, /* event type */
0, /* event category */
0, /* event ID */
NULL, /* current user's SID */
1, /* strings in lpszStrings */
0, /* no bytes of raw data */
lpszStrings, /* array of error strings */
NULL); /* no raw data */
(VOID) DeregisterEventSource(hEventSource);
}
#endif
/* Write the error to stderr too */
fprintf(stderr, errmsg);
#ifdef DEBUG
return EXCEPTION_CONTINUE_SEARCH;
#else
exit(255);
return (255); /* not reached */
#endif
}
/*
* On WIN32 systems we don't have the luxury of a /bin directory that
* is mapped globally to every drive mounted to the system. Since make could
* be invoked from any drive, and we don't want to propogate /bin/sh
* to every single drive. Allow ourselves a chance to search for
* a value for default shell here (if the default path does not exist).
*/
int
find_and_set_default_shell (char *token)
{
int sh_found = 0;
char *search_token;
char *tokend;
PATH_VAR(sh_path);
extern char *default_shell;
if (!token)
search_token = default_shell;
else
search_token = token;
/* If the user explicitly requests the DOS cmd shell, obey that request.
However, make sure that's what they really want by requiring the value
of SHELL either equal, or have a final path element of, "cmd" or
"cmd.exe" case-insensitive. */
tokend = search_token + strlen (search_token) - 3;
if (((tokend == search_token
|| (tokend > search_token
&& (tokend[-1] == '/' || tokend[-1] == '\\')))
&& !strcmpi (tokend, "cmd"))
|| ((tokend - 4 == search_token
|| (tokend - 4 > search_token
&& (tokend[-5] == '/' || tokend[-5] == '\\')))
&& !strcmpi (tokend - 4, "cmd.exe"))) {
batch_mode_shell = 1;
unixy_shell = 0;
sprintf (sh_path, "%s", search_token);
default_shell = xstrdup (w32ify (sh_path, 0));
DB (DB_VERBOSE,
(_("find_and_set_shell setting default_shell = %s\n"), default_shell));
sh_found = 1;
} else if (!no_default_sh_exe &&
(token == NULL || !strcmp (search_token, default_shell))) {
/* no new information, path already set or known */
sh_found = 1;
} else if (file_exists_p(search_token)) {
/* search token path was found */
sprintf(sh_path, "%s", search_token);
default_shell = xstrdup(w32ify(sh_path,0));
DB (DB_VERBOSE,
(_("find_and_set_shell setting default_shell = %s\n"), default_shell));
sh_found = 1;
} else {
char *p;
struct variable *v = lookup_variable (STRING_SIZE_TUPLE ("PATH"));
/* Search Path for shell */
if (v && v->value) {
char *ep;
p = v->value;
ep = strchr(p, PATH_SEPARATOR_CHAR);
while (ep && *ep) {
*ep = '\0';
if (dir_file_exists_p(p, search_token)) {
sprintf(sh_path, "%s/%s", p, search_token);
default_shell = xstrdup(w32ify(sh_path,0));
sh_found = 1;
*ep = PATH_SEPARATOR_CHAR;
/* terminate loop */
p += strlen(p);
} else {
*ep = PATH_SEPARATOR_CHAR;
p = ++ep;
}
ep = strchr(p, PATH_SEPARATOR_CHAR);
}
/* be sure to check last element of Path */
if (p && *p && dir_file_exists_p(p, search_token)) {
sprintf(sh_path, "%s/%s", p, search_token);
default_shell = xstrdup(w32ify(sh_path,0));
sh_found = 1;
}
if (sh_found)
DB (DB_VERBOSE,
(_("find_and_set_shell path search set default_shell = %s\n"),
default_shell));
}
}
/* naive test */
if (!unixy_shell && sh_found &&
(strstr(default_shell, "sh") || strstr(default_shell, "SH"))) {
unixy_shell = 1;
batch_mode_shell = 0;
}
#ifdef BATCH_MODE_ONLY_SHELL
batch_mode_shell = 1;
#endif
return (sh_found);
}
#endif /* WINDOWS32 */
#ifdef __MSDOS__
static void
msdos_return_to_initial_directory (void)
{
if (directory_before_chdir)
chdir (directory_before_chdir);
}
#endif
extern char *mktemp PARAMS ((char *template));
extern int mkstemp PARAMS ((char *template));
FILE *
open_tmpfile(char **name, const char *template)
{
#ifdef HAVE_FDOPEN
int fd;
#endif
#if defined HAVE_MKSTEMP || defined HAVE_MKTEMP
# define TEMPLATE_LEN strlen (template)
#else
# define TEMPLATE_LEN L_tmpnam
#endif
*name = xmalloc (TEMPLATE_LEN + 1);
strcpy (*name, template);
#if defined HAVE_MKSTEMP && defined HAVE_FDOPEN
/* It's safest to use mkstemp(), if we can. */
fd = mkstemp (*name);
if (fd == -1)
return 0;
return fdopen (fd, "w");
#else
# ifdef HAVE_MKTEMP
(void) mktemp (*name);
# else
(void) tmpnam (*name);
# endif
# ifdef HAVE_FDOPEN
/* Can't use mkstemp(), but guard against a race condition. */
fd = open (*name, O_CREAT|O_EXCL|O_WRONLY, 0600);
if (fd == -1)
return 0;
return fdopen (fd, "w");
# else
/* Not secure, but what can we do? */
return fopen (*name, "w");
# endif
#endif
}
#ifdef __APPLE__
static void
define_makefilepath_variable(void)
{
uint32_t bufsize;
char buf[PATH_MAX], path[PATH_MAX];
char *p;
struct stat sb;
/* For $ANY_DIR/usr/bin/make, try $ANY_DIR/Makefiles */
bufsize = sizeof(buf);
if (_NSGetExecutablePath(buf, &bufsize) == 0 && realpath(buf, path) != NULL) {
p = strstr(path, "/usr/bin/gnumake");
if (p == NULL) {
p = strstr(path, "/usr/bin/make");
}
if (p != NULL && p != path) {
strcpy(p, "/Makefiles");
if (lstat(path, &sb) == 0 && S_ISDIR(sb.st_mode)) {
define_variable("MAKEFILEPATH", 12, path, o_default, 0);
return;
}
}
}
/* Fallback is $DEVELOPER_DIR/Makefiles */
define_variable("MAKEFILEPATH", 12, "$(shell /usr/bin/xcode-select -print-path 2>/dev/null || echo /Developer)/Makefiles", o_default, 1);
}
#endif /* __APPLE__ */
#ifdef _AMIGA
int
main (int argc, char **argv)
#else
int
main (int argc, char **argv, char **envp)
#endif
{
static char *stdin_nm = 0;
struct file *f;
int i;
int makefile_status = MAKE_SUCCESS;
char **p;
struct dep *read_makefiles;
PATH_VAR (current_directory);
unsigned int restarts = 0;
#ifdef WINDOWS32
char *unix_path = NULL;
char *windows32_path = NULL;
SetUnhandledExceptionFilter(handle_runtime_exceptions);
/* start off assuming we have no shell */
unixy_shell = 0;
no_default_sh_exe = 1;
#endif
#ifdef SET_STACK_SIZE
/* Get rid of any avoidable limit on stack size. */
{
struct rlimit rlim;
/* Set the stack limit huge so that alloca does not fail. */
if (getrlimit (RLIMIT_STACK, &rlim) == 0)
{
rlim.rlim_cur = rlim.rlim_max;
setrlimit (RLIMIT_STACK, &rlim);
}
}
#endif
#ifdef HAVE_ATEXIT