cppexp.c (parse_defined): Mark macro used.

[gcc.git] / gcc / ChangeLog

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 15020fff59ce399af2f6609c9a3b377ab60951ab..95afea08c82a9303cbc368580743fefa73871342 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,24 @@
+2002-07-24  Neil Booth  <neil@daikokuya.co.uk>
+
+       * cppexp.c (parse_defined): Mark macro used.
+       * cpphash.h (struct cpp_macro): New member "used".
+       (_cpp_mark_macro_used, _cpp_warn_if_unused_macro): New.
+       (struct cpp_reader): New member.
+       * cppinit.c (cpp_finish_options): Set first_unused_line.
+       (cpp_finish): Warn of unused macros if requested.
+       (OPT_TABLE): New switches.
+       (cpp_handle_option): Handle them.
+       * cpplib.c (do_undef): Warn if macro unused.
+       (do_ifdef, do_ifndef): Mark macro used.
+       * cpplib.h (struct cpp_options): New member.
+       * cppmacro.c (_cpp_warn_if_unused_macro): New.
+       (enter_macro_context): Mark macro used.
+       (_cpp_create_definition): Mark macro unused; warn if unused
+       when redefined.
+       * cpptrad.c (scan_out_logcial_line, push_replacement_text):
+       Mark macros used.
+       * doc/cppopts.texi: Update.
+
 2002-07-23  Neil Booth  <neil@daikokuya.co.uk>
 
        * dwarf2out.c (SECTION_ASM_OP,