diff options
Diffstat (limited to 'gcc/gcc.c')
| -rw-r--r-- | gcc/gcc.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/gcc/gcc.c b/gcc/gcc.c index 9680977e50c..2027d28c513 100644 --- a/gcc/gcc.c +++ b/gcc/gcc.c @@ -4302,6 +4302,11 @@ main (argc, argv) signal (SIGPIPE, fatal_error); #endif + { /* Warn users they are using developmental software. */ + static void snapshot_warning (); + snapshot_warning (); + } + argbuf_length = 10; argbuf = (char **) xmalloc (argbuf_length * sizeof (char *)); @@ -5441,3 +5446,58 @@ print_multilib_info () ++p; } } + +/* For snapshots only. + Warn the user that this version of gcc is for testing and developing only. + If this is unix, we can restrict the warning to once per day. + Otherwise always issue it. */ + +#define TIMESTAMP_FILE ".gcc-test-time" +#define ONE_DAY (24*60*60) + +static void +snapshot_warning () +{ + char *home; + int print_p = 1; + +#ifdef unix + home = getenv ("HOME"); + if (home != NULL) + { + char *file_name = (char *) alloca (strlen (home) + 1 + sizeof (TIMESTAMP_FILE)); + struct stat statbuf; + time_t now = time (NULL); + int s; + + sprintf (file_name, "%s/%s", home, TIMESTAMP_FILE); + s = stat (file_name, &statbuf); + if (s == 0 + && (statbuf.st_mtime + ONE_DAY > now)) + print_p = 0; + else + { + FILE *f; + + if ((f = fopen (file_name, "w")) == NULL) + { + /* Ensure we have write access. */ + chmod (file_name, s == 0 ? (statbuf.st_mode + 0200) : 0644); + f = fopen (file_name, "w"); + } + if (f != NULL) + { + fputc ('\n', f); + fclose (f); + } + } + } +#endif + + if (print_p) + { + fprintf (stderr, "*** This is a development snapshot of GCC.\n"); + fprintf (stderr, "*** It is not reliable release, and the GCC developers\n"); + fprintf (stderr, "*** warn you not to use it for anything except to test it.\n"); + } +} |