build: accommodate new syntax-check test

Use EXIT_FAILURE and EXIT_SUCCESS, not 1 and 0.
Apply these commands:
perl -pi -e 's/\berror \(1,/error (EXIT_FAILURE,/' \
  $(git grep -l '\<error (1,')
perl -pi -e 's/\bexit \(1\)/exit (EXIT_FAILURE)/' \
  $(git grep -l '\<exit (1)')
perl -pi -e 's/\bexit \(0\)/exit (EXIT_SUCCESS)/' \
  $(git grep -l '\<exit (0)')
* libidu/idread.c (read_id_file, maybe_read_id_file, io_read):
* libidu/idu-hash.c (hash_init):
* libidu/idwrite.c (io_write):
* libidu/scanners.c (parse_language_map, parse_language_map_file):
(read_language_map_file):
* libidu/walker.c (include_languages, exclude_languages):
(get_current_dir_link):
* src/fid.c (usage, help_me, main):
* src/fnid.c (usage, help_me, main):
* src/lid.c (usage, help_me, main, report_grep, report_edit):
(query_regexp):
* src/mkid.c (main, assert_writeable, write_id_file):
* src/xtokid.c (help_me):

5 files changed, 24 insertions, 24 deletions

diff --git a/src/fid.c b/src/fid.c
index 24d1833..e72e820 100644
--- a/src/fid.c
+++ b/src/fid.c
@@ -71,7 +71,7 @@ usage (void)
 {
   fprintf (stderr, _("Try `%s --help' for more information.\n"),
 	   program_name);
-  exit (1);
+  exit (EXIT_FAILURE);
 }
 
 static void __attribute__((__noreturn__))
@@ -89,7 +89,7 @@ also given list the identifiers that occur in both files.\n\
       --version    output version information and exit\n\
 "));
   printf (_("\nReport bugs to " PACKAGE_BUGREPORT "\n\n"));
-  exit (0);
+  exit (EXIT_SUCCESS);
 }
 
 int
@@ -136,7 +136,7 @@ main (int argc, char **argv)
   if (show_version)
     {
       printf ("%s - %s\n", program_name, PACKAGE_VERSION);
-      exit (0);
+      exit (EXIT_SUCCESS);
     }
 
   if (show_help)
@@ -158,7 +158,7 @@ main (int argc, char **argv)
   /* Look for the ID database up the tree */
   idh.idh_file_name = locate_id_file_name (idh.idh_file_name);
   if (idh.idh_file_name == 0)
-    error (1, errno, _("can't locate `ID'"));
+    error (EXIT_FAILURE, errno, _("can't locate `ID'"));
 
   init_idh_obstacks (&idh);
   init_idh_tables (&idh);
diff --git a/src/fnid.c b/src/fnid.c
index 95253cd..d54ec11 100644
--- a/src/fnid.c
+++ b/src/fnid.c
@@ -50,7 +50,7 @@ usage (void)
 {
   fprintf (stderr, _("Try `%s --help' for more information.\n"),
 	   program_name);
-  exit (1);
+  exit (EXIT_FAILURE);
 }
 
 static struct option const long_options[] =
@@ -78,7 +78,7 @@ using shell-style wildcards.\n\
       --version          output version information and exit\n\
 "));
   printf (_("\nReport bugs to " PACKAGE_BUGREPORT "\n\n"));
-  exit (0);
+  exit (EXIT_SUCCESS);
 }
 
 int
@@ -125,7 +125,7 @@ main (int argc, char **argv)
   if (show_version)
     {
       printf ("%s - %s\n", program_name, PACKAGE_VERSION);
-      exit (0);
+      exit (EXIT_SUCCESS);
     }
 
   if (show_help)
@@ -152,7 +152,7 @@ main (int argc, char **argv)
   /* Look for the ID database up the tree */
   idh.idh_file_name = locate_id_file_name (idh.idh_file_name);
   if (idh.idh_file_name == 0)
-    error (1, errno, _("can't locate `ID'"));
+    error (EXIT_FAILURE, errno, _("can't locate `ID'"));
 
   init_idh_obstacks (&idh);
   init_idh_tables (&idh);
diff --git a/src/lid.c b/src/lid.c
index d06a146..b1d0fdf 100644
--- a/src/lid.c
+++ b/src/lid.c
@@ -240,7 +240,7 @@ usage (void)
 {
   fprintf (stderr, _("Try `%s --help' for more information.\n"),
 	   program_name);
-  exit (1);
+  exit (EXIT_FAILURE);
 }
 
 static void __attribute__((__noreturn__))
@@ -288,7 +288,7 @@ matched identifier followed by the list of file names in which it occurs.\n\
 "),
 	  (separator_style == ss_braces ? _("braces") : _("space")));
   printf (_("\nReport bugs to " PACKAGE_BUGREPORT "\n\n"));
-  exit (0);
+  exit (EXIT_SUCCESS);
 }
 
 int
@@ -411,7 +411,7 @@ main (int argc, char **argv)
   if (show_version)
     {
       printf ("%s - %s\n", program_name, PACKAGE_VERSION);
-      exit (0);
+      exit (EXIT_SUCCESS);
     }
 
   if (show_help)
@@ -440,7 +440,7 @@ main (int argc, char **argv)
   /* Look for the ID database up the tree */
   idh.idh_file_name = locate_id_file_name (idh.idh_file_name);
   if (idh.idh_file_name == 0)
-    error (1, errno, _("can't locate `ID'"));
+    error (EXIT_FAILURE, errno, _("can't locate `ID'"));
 
   init_idh_obstacks (&idh);
   init_idh_tables (&idh);
@@ -477,7 +477,7 @@ main (int argc, char **argv)
     }
 
   fclose (idh.idh_FILE);
-  exit (0);
+  exit (EXIT_SUCCESS);
 }
 
 static void
@@ -582,7 +582,7 @@ report_grep (char const *name, struct file_link **flinkv)
 	    {
 	      char buf[BUFSIZ];
 	      regerror (regcomp_errno, &compiled, buf, sizeof (buf));
-	      error (1, 0, "%s", buf);
+	      error (EXIT_FAILURE, 0, "%s", buf);
 	    }
 	}
     }
@@ -608,7 +608,7 @@ report_grep (char const *name, struct file_link **flinkv)
 	    {
 	      int regexec_errno = regexec (&compiled, line, 0, 0, 0);
 	      if (regexec_errno == REG_ESPACE)
-		error (1, 0,
+		error (EXIT_FAILURE, 0,
 		       _("can't match regular-expression: memory exhausted"));
 	      else if (regexec_errno)
 		continue;
@@ -733,7 +733,7 @@ report_edit (char const *name, struct file_link **flinkv)
 	case 'q':
 	  putchar (c);
 	  putchar ('\n');
-	  exit (0);
+	  exit (EXIT_SUCCESS);
 
 	case 'n':
 	  putchar (c);
@@ -767,7 +767,7 @@ editit:
   switch (fork ())
     {
     case -1:
-      error (1, errno, _("can't fork"));
+      error (EXIT_FAILURE, errno, _("can't fork"));
       break;
 
     case 0:
@@ -915,7 +915,7 @@ query_regexp (char const *pattern_0, report_func_t report_func)
     {
       char buf[BUFSIZ];
       regerror (regcomp_errno, &compiled, buf, sizeof (buf));
-      error (1, 0, "%s", buf);
+      error (EXIT_FAILURE, 0, "%s", buf);
     }
   fseek (idh.idh_FILE, idh.idh_tokens_offset, SEEK_SET);
 
diff --git a/src/mkid.c b/src/mkid.c
index 658a7e1..cbee3de 100644
--- a/src/mkid.c
+++ b/src/mkid.c
@@ -290,7 +290,7 @@ main (int argc, char **argv)
   if (show_version)
     {
       printf ("%s - %s\n", program_name, PACKAGE_VERSION);
-      exit (0);
+      exit (EXIT_SUCCESS);
     }
 
   if (show_help)
@@ -486,12 +486,12 @@ assert_writeable (char const *filename)
 	{
 	  char *dirname = dir_name (filename);
 	  if (access (dirname, 06) < 0)
-	    error (1, errno, _("can't create `%s' in `%s'"),
+	    error (EXIT_FAILURE, errno, _("can't create `%s' in `%s'"),
 		   base_name (filename), dirname);
 	  free(dirname);
 	}
       else
-	error (1, errno, _("can't modify `%s'"), filename);
+	error (EXIT_FAILURE, errno, _("can't modify `%s'"), filename);
     }
 }
 
@@ -699,7 +699,7 @@ write_id_file (struct idhead *idhp)
     printf (_("Writing `%s'...\n"), idhp->idh_file_name);
   idhp->idh_FILE = fopen (idhp->idh_file_name, "w+b");
   if (idhp->idh_FILE == NULL)
-    error (1, errno, _("can't create `%s'"), idhp->idh_file_name);
+    error (EXIT_FAILURE, errno, _("can't create `%s'"), idhp->idh_file_name);
 
   idhp->idh_magic[0] = IDH_MAGIC_0;
   idhp->idh_magic[1] = IDH_MAGIC_1;
@@ -767,7 +767,7 @@ write_id_file (struct idhead *idhp)
 
   write_idhead (&idh);
   if (ferror (idhp->idh_FILE) || fclose (idhp->idh_FILE) != 0)
-    error (1, errno, _("error closing `%s'"), idhp->idh_file_name);
+    error (EXIT_FAILURE, errno, _("error closing `%s'"), idhp->idh_file_name);
 }
 
 /* Define primary and secondary hash and comparison functions for the
diff --git a/src/xtokid.c b/src/xtokid.c
index 8c0b906..cff5a08 100644
--- a/src/xtokid.c
+++ b/src/xtokid.c
@@ -103,7 +103,7 @@ The following arguments apply to the language-specific scanners:\n\
 "));
   language_help_me ();
   printf (_("\nReport bugs to " PACKAGE_BUGREPORT "\n\n"));
-  exit (0);
+  exit (EXIT_SUCCESS);
 }
 
 int