Make Darwin -bundle option work. Patch from Peter O'Gorman.

PR 21366
* gcc.c (process_command): Check the argument to -b has a dash.
* doc/invoke.texi: Update -b and -V docs.

From-SVN: r102829

gcc/ChangeLog

+2005-08-06  Peter O'Gorman  <peter@pogma.com>
+
+	PR 21366
+	* gcc.c (process_command): Check the argument to -b has a dash.
+	* doc/invoke.texi: Update -b and -V docs.
+
 2005-08-06  James E Wilson  <wilson@specifix.com>
 
 	* config/mips/cross64.h, config/mips/t-cross64: Delete.

gcc/doc/invoke.texi

@@ -6943,14 +6943,16 @@ The argument @var{machine} specifies the target machine for compilation.
 The value to use for @var{machine} is the same as was specified as the
 machine type when configuring GCC as a cross-compiler.  For
 example, if a cross-compiler was configured with @samp{configure
-i386v}, meaning to compile for an 80386 running System V, then you
-would specify @option{-b i386v} to run that cross compiler.
+arm-elf}, meaning to compile for an arm processor with elf binaries,
+then you would specify @option{-b arm-elf} to run that cross compiler.
+Because there are other options beginning with @option{-b}, the
+configuration must contain a hyphen. 
 
 @item -V @var{version}
 @opindex V
 The argument @var{version} specifies which version of GCC to run.
 This is useful when multiple versions are installed.  For example,
-@var{version} might be @samp{2.0}, meaning to run GCC version 2.0.
+@var{version} might be @samp{4.0}, meaning to run GCC version 4.0.
 @end table
 
 The @option{-V} and @option{-b} options work by running the

gcc/gcc.c

@@ -3175,9 +3175,12 @@ process_command (int argc, const char **argv)
     }
 
   /* If there is a -V or -b option (or both), process it now, before
-     trying to interpret the rest of the command line.  */
+     trying to interpret the rest of the command line. 
+     Use heuristic that all configuration names must have at least
+     one dash '-'. This allows us to pass options starting with -b.  */
   if (argc > 1 && argv[1][0] == '-'
-      && (argv[1][1] == 'V' || argv[1][1] == 'b'))
+      && (argv[1][1] == 'V' || 
+	 ((argv[1][1] == 'b') && (NULL != strchr(argv[1] + 2,'-')))))
     {
       const char *new_version = DEFAULT_TARGET_VERSION;
       const char *new_machine = DEFAULT_TARGET_MACHINE;
@@ -3187,7 +3190,8 @@ process_command (int argc, const char **argv)
       int baselen;
 
       while (argc > 1 && argv[1][0] == '-'
-	     && (argv[1][1] == 'V' || argv[1][1] == 'b'))
+	     && (argv[1][1] == 'V' ||
+		((argv[1][1] == 'b') && ( NULL != strchr(argv[1] + 2,'-')))))
 	{
 	  char opt = argv[1][1];
 	  const char *arg;
@@ -3608,6 +3612,7 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"
 	  switch (c)
 	    {
 	    case 'b':
+	      if (NULL == strchr(argv[i] + 2, '-')) break;
 	    case 'V':
 	      fatal ("'-%c' must come at the start of the command line", c);
 	      break;