diff options
Diffstat (limited to 'gcc/cppinit.c')
| -rw-r--r-- | gcc/cppinit.c | 21 |
1 files changed, 3 insertions, 18 deletions
diff --git a/gcc/cppinit.c b/gcc/cppinit.c index 82b3056b704..d8e622bca4e 100644 --- a/gcc/cppinit.c +++ b/gcc/cppinit.c @@ -1052,6 +1052,8 @@ cpp_finish_options (pfile) { struct pending_option *p; + /* Prevent -Wunused-macros with command-line redefinitions. */ + pfile->first_unused_line = (unsigned int) -1; _cpp_do_file_change (pfile, LC_RENAME, _("<built-in>"), 1, 0); init_builtins (pfile); _cpp_do_file_change (pfile, LC_RENAME, _("<command line>"), 1, 0); @@ -1322,24 +1324,7 @@ cpp_handle_option (pfile, argc, argv) case OPT_A: if (arg[0] == '-') - { - /* -A with an argument beginning with '-' acts as - #unassert on whatever immediately follows the '-'. - If "-" is the whole argument, we eliminate all - predefined macros and assertions, including those - that were specified earlier on the command line. - That way we can get rid of any that were passed - automatically in from GCC. */ - - if (arg[1] == '\0') - { - free_chain (pend->directive_head); - pend->directive_head = NULL; - pend->directive_tail = NULL; - } - else - new_pending_directive (pend, arg + 1, cpp_unassert); - } + new_pending_directive (pend, arg + 1, cpp_unassert); else new_pending_directive (pend, arg, cpp_assert); break; |