cppfiles.c: Clarify comments.

	* cppfiles.c: Clarify comments.
	* cpphash.h: Likewise.
	* cpplib.h: Likewise.
	* cppmacro.c: Likewise.
	* mkdeps.h: Likewise.

From-SVN: r68496

gcc/ChangeLog

+2003-06-25 Martin Schaffner <schaffner@gmx.li>
+
+	* cppfiles.c: Clarify comments.
+	* cpphash.h: Likewise.
+	* cpplib.h: Likewise.
+	* cppmacro.c: Likewise.
+	* mkdeps.h: Likewise.
+
 2003-06-25  Neil Booth  <neil@daikokuya.co.uk>
 
 	* c-opts.c (complain_wrong_lang, write_langs): Remove.

gcc/cppfiles.c

@@ -741,7 +741,7 @@ _cpp_execute_include (cpp_reader *pfile, const char *fname, int angle_brackets,
 }
 
 /* Locate HEADER, and determine whether it is newer than the current
-   file.  If it cannot be located or dated, return -1, if it is newer
+   file.  If it cannot be located or dated, return -1, if it is
    newer, return 1, otherwise 0.  */
 int
 _cpp_compare_file_date (cpp_reader *pfile, const char *fname,

gcc/cpphash.h

@@ -392,7 +392,7 @@ struct cpp_reader
      list of recognized pragmas.  */
   struct pragma_entry *pragmas;
 
-  /* Call backs.  */
+  /* Call backs to cpplib client.  */
   struct cpp_callbacks cb;
 
   /* Identifier hash table.  */

gcc/cpplib.h

@@ -371,7 +371,7 @@ struct cpp_options
   unsigned char stdc_0_in_system_headers;
 };
 
-/* Call backs.  */
+/* Call backs to cpplib client.  */
 struct cpp_callbacks
 {
   /* Called when a new line of preprocessed output is started.  */

gcc/cppmacro.c

@@ -1038,9 +1038,9 @@ _cpp_pop_context (cpp_reader *pfile)
   pfile->context = context->prev;
 }
 
-/* Eternal routine to get a token.  Also used nearly everywhere
+/* External routine to get a token.  Also used nearly everywhere
    internally, except for places where we know we can safely call
-   the lexer directly, such as lexing a directive name.
+   _cpp_lex_token directly, such as lexing a directive name.
 
    Macro expansions and directives are transparently handled,
    including entering included files.  Thus tokens are post-macro

gcc/mkdeps.h

@@ -39,7 +39,7 @@ extern void deps_free		PARAMS ((struct deps *));
 extern void deps_add_target	PARAMS ((struct deps *, const char *, int));
 
 /* Sets the default target if none has been given already.  An empty
-   string as the default target in interpreted as stdin.  */
+   string as the default target is interpreted as stdin.  */
 extern void deps_add_default_target PARAMS ((struct deps *, const char *));
 
 /* Add a dependency (appears on the right side of the colon) to the