gcc.h (lang_specific_driver): Constify second argument.

	* gcc.h (lang_specific_driver): Constify second argument.
	* gcc.c (translate_options, process_command, main): Likewise.
	Constify variables to match.  Cast second argument to
	pexecute.

	* cppspec.c, gccspec.c, g++spec.c, g77spec.c, jvspec.c: Adjust
	type of second argument to lang_specific_driver, and update
	code as necessary.

From-SVN: r35433

11 files changed, 54 insertions, 42 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 3343f37..0c3e56d 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>
+
+	* gcc.h (lang_specific_driver): Constify second argument.
+	* gcc.c (translate_options, process_command, main): Likewise.
+	Constify variables to match.  Cast second argument to
+	pexecute.
+
+	* cppspec.c, gccspec.c: Adjust type of second argument to
+	lang_specific_driver, and update code as necessary.
+
 2000-08-02  Jakub Jelinek  <jakub@redhat.com>
 
 	* loop.c (scan_loop): Ensure update_end label does not
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index 84b1cab..a7a4cc8 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,5 +1,8 @@
 2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>
 
+	* g++spec.c: Adjust type of second argument to
+	lang_specific_driver, and update code as necessary.
+
 	* cp-tree.h: Don't prototype min_precision here.
 	(my_friendly_assert): Cast expression to void.
 	* semantics.c (do_poplevel): Initialize scope_stmts.
diff --git a/gcc/cp/g++spec.c b/gcc/cp/g++spec.c
index b3bab5a..1602ab6 100644
--- a/gcc/cp/g++spec.c
+++ b/gcc/cp/g++spec.c
@@ -40,7 +40,7 @@ Boston, MA 02111-1307, USA.  */
 void
 lang_specific_driver (in_argc, in_argv, in_added_libraries)
      int *in_argc;
-     char ***in_argv;
+     const char *const **in_argv;
      int *in_added_libraries;
 {
   int i, j;
@@ -62,7 +62,6 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
   const char *quote = NULL;
 
   /* The new argument list will be contained in this.  */
-  char **real_arglist;
   const char **arglist;
 
   /* Non-zero if we saw a `-xfoo' language specification on the
@@ -87,7 +86,7 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
   int argc;
 
   /* The argument list.  */
-  char **argv;
+  const char *const *argv;
 
   /* The number of libraries added in.  */
   int added_libraries;
@@ -203,14 +202,13 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
 
   /* Make sure to have room for the trailing NULL argument.  */
   num_args = argc + added + need_math + 1;
-  real_arglist = (char **) xmalloc (num_args * sizeof (char *));
-  arglist = (const char **) real_arglist;
+  arglist = (const char **) xmalloc (num_args * sizeof (char *));
 
   i = 0;
   j = 0;
   
   /* Copy the 0th argument, i.e., the name of the program itself.  */
-  arglist[i++] = arglist[j++];
+  arglist[i++] = argv[j++];
 
 #if ENABLE_NEW_GXX_ABI
   /* If we should use the new ABI by default, add the appropriate flag
@@ -274,7 +272,7 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
   arglist[j] = NULL;
 
   *in_argc = j;
-  *in_argv = real_arglist;
+  *in_argv = arglist;
   *in_added_libraries = added_libraries;
 }
 
diff --git a/gcc/cppspec.c b/gcc/cppspec.c
index 543c4c8..3796cdc 100644
--- a/gcc/cppspec.c
+++ b/gcc/cppspec.c
@@ -72,12 +72,12 @@ static const char *const known_suffixes[] =
 void
 lang_specific_driver (in_argc, in_argv, in_added_libraries)
      int *in_argc;
-     char ***in_argv;
+     const char *const **in_argv;
      int *in_added_libraries ATTRIBUTE_UNUSED;
 {
   int argc = *in_argc;
-  char **argv = *in_argv;
-  
+  const char *const *argv = *in_argv;
+
   /* Do we need to read stdin? */
   int read_stdin = 1;
 
@@ -100,7 +100,6 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
   int need_fixups = 1;
   
   int i, j, quote = 0;
-  char **real_new_argv;
   const char **new_argv;
   int new_argc;
 
@@ -196,8 +195,7 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
     return;
 
   /* One more slot for a terminating null.  */
-  real_new_argv = (char **) xmalloc ((new_argc + 1) * sizeof(char *));
-  new_argv = (const char **) real_new_argv;
+  new_argv = (const char **) xmalloc ((new_argc + 1) * sizeof(char *));
 
   new_argv[0] = argv[0];
   j = 1;
@@ -225,7 +223,7 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
 
   new_argv[j] = NULL;
   *in_argc = new_argc;
-  *in_argv = real_new_argv;
+  *in_argv = new_argv;
 } 
 
 /* Called before linking.  Returns 0 on success and -1 on failure. */
diff --git a/gcc/f/ChangeLog b/gcc/f/ChangeLog
index 504d5cb..5d14ea9 100644
--- a/gcc/f/ChangeLog
+++ b/gcc/f/ChangeLog
@@ -1,5 +1,8 @@
 2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>
 
+	* g77spec.c: Adjust type of second argument to
+	lang_specific_driver, and update code as necessary.
+
 	* expr.c (ffeexpr_finished_): Cast signed side of ?:
 	expression to bool.
 
diff --git a/gcc/f/g77spec.c b/gcc/f/g77spec.c
index 532154b..b24eab0 100644
--- a/gcc/f/g77spec.c
+++ b/gcc/f/g77spec.c
@@ -86,14 +86,13 @@ typedef enum
 
 /* The original argument list and related info is copied here.  */
 static int g77_xargc;
-static const char **g77_xargv;
+static const char *const *g77_xargv;
 static void lookup_option PARAMS ((Option *, int *, const char **,
 				   const char *));
 static void append_arg PARAMS ((const char *));
 
 /* The new argument list will be built here.  */
 static int g77_newargc;
-static char **real_g77_newargv;
 static const char **g77_newargv;
 
 /* --- This comes from gcc.c (2.8.1) verbatim: */
@@ -240,8 +239,7 @@ append_arg (arg)
       int i;
 
       newargsize = (g77_xargc << 2) + 20;	/* This should handle all. */
-      real_g77_newargv = (char **) xmalloc (newargsize * sizeof (char *));
-      g77_newargv = (const char **) real_g77_newargv;
+      g77_newargv = (const char **) xmalloc (newargsize * sizeof (char *));
 
       /* Copy what has been done so far.  */
       for (i = 0; i < g77_newargc; ++i)
@@ -257,11 +255,11 @@ append_arg (arg)
 void
 lang_specific_driver (in_argc, in_argv, in_added_libraries)
      int *in_argc;
-     char ***in_argv;
+     const char *const **in_argv;
      int *in_added_libraries ATTRIBUTE_UNUSED;
 {
   int argc = *in_argc;
-  const char **argv = (const char **) *in_argv;
+  const char *const *argv = *in_argv;
   int i;
   int verbose = 0;
   Option opt;
@@ -302,12 +300,10 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
   fprintf (stderr, "\n");
 #endif
 
-  real_g77_newargv = *in_argv;
-
   g77_xargc = argc;
   g77_xargv = argv;
   g77_newargc = 0;
-  g77_newargv = argv;
+  g77_newargv = (const char **) argv;
 
   /* First pass through arglist.
 
@@ -572,7 +568,7 @@ For bug reporting instructions, please see:\n\
     }
 
   *in_argc = g77_newargc;
-  *in_argv = real_g77_newargv;
+  *in_argv = g77_newargv;
 }
 
 /* Called before linking.  Returns 0 on success and -1 on failure. */
diff --git a/gcc/gcc.c b/gcc/gcc.c
index 5f61be2..57c75da 100644
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -210,7 +210,7 @@ static int access_check		PARAMS ((const char *, int));
 static char *find_a_file	PARAMS ((struct path_prefix *, const char *, int));
 static void add_prefix		PARAMS ((struct path_prefix *, const char *,
 					 const char *, int, int, int *));
-static void translate_options	PARAMS ((int *, const char ***));
+static void translate_options	PARAMS ((int *, const char *const **));
 static char *skip_whitespace	PARAMS ((char *));
 static void record_temp_file	PARAMS ((const char *, int, int));
 static void delete_if_ordinary	PARAMS ((const char *));
@@ -242,7 +242,7 @@ static void display_help 	PARAMS ((void));
 static void add_preprocessor_option	PARAMS ((const char *, int));
 static void add_assembler_option	PARAMS ((const char *, int));
 static void add_linker_option		PARAMS ((const char *, int));
-static void process_command		PARAMS ((int, const char **));
+static void process_command		PARAMS ((int, const char *const *));
 static int execute			PARAMS ((void));
 static void unused_prefix_warnings	PARAMS ((struct path_prefix *));
 static void clear_args			PARAMS ((void));
@@ -854,11 +854,11 @@ struct option_map option_map[] =
 static void
 translate_options (argcp, argvp)
      int *argcp;
-     const char ***argvp;
+     const char *const **argvp;
 {
   int i;
   int argc = *argcp;
-  const char **argv = *argvp;
+  const char *const *argv = *argvp;
   const char **newv =
     (const char **) xmalloc ((argc + 2) * 2 * sizeof (const char *));
   int newindex = 0;
@@ -2492,7 +2492,7 @@ execute ()
       /* Print each piped command as a separate line.  */
       for (i = 0; i < n_commands ; i++)
 	{
-	  const char **j;
+	  const char *const *j;
 
 	  for (j = commands[i].argv; *j; j++)
 	    fprintf (stderr, " %s", *j);
@@ -2523,7 +2523,9 @@ execute ()
       char *errmsg_fmt, *errmsg_arg;
       const char *string = commands[i].argv[0];
 
-      commands[i].pid = pexecute (string, commands[i].argv,
+      /* For some bizarre reason, the second argument of execvp() is
+	 char *const *, not const char *const *.  */
+      commands[i].pid = pexecute (string, (char *const *) commands[i].argv,
 				  programname, temp_filename,
 				  &errmsg_fmt, &errmsg_arg,
 				  ((i == 0 ? PEXECUTE_FIRST : 0)
@@ -2860,7 +2862,7 @@ add_linker_option (option, len)
 static void
 process_command (argc, argv)
      int argc;
-     const char **argv;
+     const char *const *argv;
 {
   register int i;
   const char *temp;
@@ -5088,12 +5090,12 @@ fatal_error (signum)
   kill (getpid (), signum);
 }
 
-extern int main PARAMS ((int, char **));
+extern int main PARAMS ((int, const char *const *));
 
 int
 main (argc, argv)
      int argc;
-     char **argv;
+     const char *const *argv;
 {
   size_t i;
   int value;
@@ -5213,7 +5215,7 @@ main (argc, argv)
     first_time = TRUE;
     for (i = 0; (int)i < n_switches; i++)
       {
-	const char **args;
+	const char *const *args;
 	const char *p, *q;
 	if (!first_time)
 	  obstack_grow (&collect_obstack, " ", 1);
diff --git a/gcc/gcc.h b/gcc/gcc.h
index 64b9546..9a9beb0 100644
--- a/gcc/gcc.h
+++ b/gcc/gcc.h
@@ -34,7 +34,7 @@ extern void fatal PARAMS ((const char *, ...))
 /* Spec files linked with gcc.c must provide definitions for these. */
 
 /* Called before processing to change/add/remove arguments. */
-extern void lang_specific_driver PARAMS ((int *, char ***, int *));
+extern void lang_specific_driver PARAMS ((int *, const char *const **, int *));
 
 /* Called before linking.  Returns 0 on success and -1 on failure. */
 extern int lang_specific_pre_link PARAMS ((void));
diff --git a/gcc/gccspec.c b/gcc/gccspec.c
index 5df63ab..fcad38d 100644
--- a/gcc/gccspec.c
+++ b/gcc/gccspec.c
@@ -26,7 +26,7 @@ Boston, MA 02111-1307, USA.  */
 void
 lang_specific_driver (in_argc, in_argv, in_added_libraries)
      int *in_argc ATTRIBUTE_UNUSED;
-     char ***in_argv ATTRIBUTE_UNUSED;
+     const char *const **in_argv ATTRIBUTE_UNUSED;
      int *in_added_libraries ATTRIBUTE_UNUSED;
 {
   return;  /* Not used for C. */
diff --git a/gcc/java/ChangeLog b/gcc/java/ChangeLog
index 26762bd..51662f6 100644
--- a/gcc/java/ChangeLog
+++ b/gcc/java/ChangeLog
@@ -1,5 +1,8 @@
 2000-08-02  Zack Weinberg  <zack@wolery.cumb.org>
 
+	* jvspec.c: Adjust type of second argument to
+	lang_specific_driver, and update code as necessary.
+
 	* class.c (build_dtable_decl): Initialize dummy.
 
 2000-07-27  Tom Tromey  <tromey@cygnus.com>
diff --git a/gcc/java/jvspec.c b/gcc/java/jvspec.c
index 58592f8..7b12448 100644
--- a/gcc/java/jvspec.c
+++ b/gcc/java/jvspec.c
@@ -93,7 +93,7 @@ find_spec_file (dir)
 void
 lang_specific_driver (in_argc, in_argv, in_added_libraries)
      int *in_argc;
-     char ***in_argv;
+     const char *const **in_argv;
      int *in_added_libraries;
 {
   int i, j;
@@ -139,7 +139,6 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
   const char *quote = NULL;
 
   /* The new argument list will be contained in this.  */
-  char **real_arglist;
   const char **arglist;
 
   /* Non-zero if we saw a `-xfoo' language specification on the
@@ -181,7 +180,7 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
   int argc;
 
   /* The argument list.  */
-  char **argv;
+  const char *const *argv;
 
   /* The number of libraries added in.  */
   int added_libraries;
@@ -392,8 +391,8 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
   if (saw_g + saw_O == 0)
     num_args++;
   num_args++;
-  arglist = (const char **)
-    (real_arglist = (char **) xmalloc ((num_args + 1) * sizeof (char *)));
+
+  arglist = (const char **) xmalloc ((num_args + 1) * sizeof (char *));
 
   for (i = 0, j = 0; i < argc; i++, j++)
     {
@@ -488,7 +487,7 @@ lang_specific_driver (in_argc, in_argv, in_added_libraries)
   arglist[j] = NULL;
 
   *in_argc = j;
-  *in_argv = real_arglist;
+  *in_argv = arglist;
   *in_added_libraries = added_libraries;
 }