(fix_argv): Rewrite.

From-SVN: r9013

gcc/gcc.c

@@ -2163,9 +2163,12 @@ pexecute (search_flag, program, argv, not_last)
 
 #ifdef WINNT
 
-char **
+/* This is a kludge to get around the Microsoft C spawn functions' propensity
+   to remove the outermost set of double quotes from all arguments.  */
+
+const char * const
 fix_argv (argvec)
-     char **argvec
+     char **argvec;
 {
   int i;
 
@@ -2195,7 +2198,7 @@ fix_argv (argvec)
         argvec[i] = temp;
       }
 
-   return argvec;
+  return (const char* const*) argvec;
 }
 
 #define FIX_ARGV(a) fix_argv(a)
@@ -2204,7 +2207,7 @@ fix_argv (argvec)
 
 #define FIX_ARGV(a) a
 
-#endif /* OS2 or WINNT */
+#endif
 
 static int
 pexecute (search_flag, program, argv, not_last)