windows下的make工具 make-4.2.tar

/* Argument parsing and main program of GNU Make. Copyright (C) 1988-2016 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 3 of the License, 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 this program. If not, see <http://www.gnu.org/licenses/>. */ #include "makeint.h" #include "os.h" #include "filedef.h" #include "dep.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" # include "sub_proc.h" # include "w32err.h" #endif #ifdef __EMX__ # include <sys/types.h> # include <sys/wait.h> #endif #ifdef HAVE_FCNTL_H # include <fcntl.h> #endif #ifdef _AMIGA int __stack = 20000; /* Make sure we have 20K of stack space */ #endif #ifdef VMS int vms_use_mcr_command = 0; int vms_always_use_cmd_file = 0; int vms_gnv_shell = 0; int vms_legacy_behavior = 0; int vms_comma_separator = 0; int vms_unix_simulation = 0; int vms_report_unix_paths = 0; /* Evaluates if a VMS environment option is set, only look at first character */ static int get_vms_env_flag (const char *name, int default_value) { char * value; char x; value = getenv (name); if (value == NULL) return default_value; x = toupper (value[0]); switch (x) { case '1': case 'T': case 'E': return 1; break; case '0': case 'F': case 'D': return 0; } } #endif #if defined HAVE_WAITPID || defined HAVE_WAIT3 # define HAVE_WAIT_NOHANG #endif #ifndef HAVE_UNISTD_H int chdir (); #endif #ifndef STDC_HEADERS # ifndef sun /* Sun has an incorrect decl in a header. */ void exit (int) __attribute__ ((noreturn)); # endif double atof (); #endif static void clean_jobserver (int status); static void print_data_base (void); static void print_version (void); static void decode_switches (int argc, const char **argv, int env); static void decode_env_switches (const char *envar, unsigned int len); static struct variable *define_makeflags (int all, int makefile); static char *quote_for_env (char *out, const char *in); static void initialize_global_hash_tables (void);  /* 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 invocation. */ strlist, /* One string per switch. */ filename, /* A string containing a file name. */ positive_int, /* A positive integer. */ floating, /* A floating-point number (double). */ ignore /* Ignored. */ } type; void *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. */ const void *noarg_value; /* Pointer to value used if no arg given. */ const void *default_value; /* Pointer to default value. */ const 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 strlist arguments. */ struct stringlist { const 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 extra verification (that may slow things down). */ int verify_flag; /* 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 = 0; static int debug_flag = 0; int db_level = 0; /* Synchronize output (--output-sync). */ char *output_sync_option = 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; /* 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; /* Size of the stack when we started. */ #ifdef SET_STACK_SIZE struct rlimit stack_limit; #endif /* Number of job slots for parallelism. */ unsigned int job_slots; #define INVALID_JOB_SLOTS (-1) static unsigned int master_job_slots = 0; static int arg_job_slots = INVALID_JOB_SLOTS; static const int default_job_slots = INVALID_JOB_SLOTS; /* Value of job_slots that means no limit. */ static const int inf_jobs = 0; /* Authorization for the jobserver. */ static char *jobserver_auth = NULL; /* Handle for the mutex used on Windows to synchronize output of our children under -O. */ char *sync_mutex = NULL; /* 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; /* List of strings to be eval'd. */ static struct stringlist *eval_strings = 0;