c.opt (-Wdate-time): New option
2013-11-05 Tobias Burnus <burnus@net-b.de>
gcc/c-family/
* c.opt (-Wdate-time): New option
* c-opts.c (sanitize_cpp_opts): Pass on to libcpp.
gcc/
* doc/invoke.texi (-Wdate-time): Document.
gcc/fortran
* lang.opt (-Wdate-time): New option
* cpp.c (gfc_cpp_option_data): Add warn_date_time.
(gfc_cpp_init_options, gfc_cpp_handle_option,
gfc_cpp_post_options): Handle it and pass on to libcpp.
gcc/testsuite/
* g++.dg/warn/wdate-time.C: New.
* gcc.dg/wdate-time.c: New.
* gfortran.dg/wdate-time.F90: New.
libcpp/
* include/cpplib.h (CPP_W_DATE_TIME): Added.
(cpp_options): Add warn_date_time.
* init.c (cpp_create_reader): Init it.
* macro.c (_cpp_builtin_macro_text): Warn when
__DATE__/__TIME__/__TIMESTAMP__ is used.
From-SVN: r204420
diff --git a/libcpp/include/cpplib.h b/libcpp/include/cpplib.h
index 34ad6c3..02927d4 100644
--- a/libcpp/include/cpplib.h
+++ b/libcpp/include/cpplib.h
@@ -337,6 +337,9 @@
/* Nonzero means warn if slash-star appears in a comment. */
unsigned char warn_comments;
+ /* Nonzero means to warn about __DATA__, __TIME__ and __TIMESTAMP__ usage. */
+ unsigned char warn_date_time;
+
/* Nonzero means warn if a user-supplied include directory does not
exist. */
unsigned char warn_missing_include_dirs;
@@ -925,7 +928,8 @@
CPP_W_NORMALIZE,
CPP_W_INVALID_PCH,
CPP_W_WARNING_DIRECTIVE,
- CPP_W_LITERAL_SUFFIX
+ CPP_W_LITERAL_SUFFIX,
+ CPP_W_DATE_TIME
};
/* Output a diagnostic of some kind. */