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authorManuel López-Ibáñez <manu@gcc.gnu.org>2014-08-19 22:37:49 +0000
committerManuel López-Ibáñez <manu@gcc.gnu.org>2014-08-19 22:37:49 +0000
commit43f9a13cee34bbf3f007469d4dd3c3a67e6d8e6d (patch)
tree75764dc68d3b47da1315519f474d62d5a2262f04 /gcc/doc
parentcd0059f55fc3e14c2b24a4db084064e0da3295a8 (diff)
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re PR preprocessor/60975 (-Wvariadic-macros does not print warning)
gcc/ChangeLog: 2014-08-20 Manuel López-Ibáñez <manu@gcc.gnu.org> PR c/60975 PR c/53063 * doc/options.texi (CPP): Document it. * doc/invoke.texi (Wvariadic-macros): Fix documentation. * optc-gen.awk: Handle CPP. * opth-gen.awk: Likewise. gcc/c-family/ChangeLog: 2014-08-20 Manuel López-Ibáñez <manu@gcc.gnu.org> PR c/60975 PR c/53063 * c.opt (Wvariadic-macros): Use CPP and LangEnabledBy. * c-opts.c (c_common_handle_option): Call cpp_handle_option_auto. (c_common_post_options): Call init_global_opts_from_cpp. (sanitize_cpp_opts): Do not handle Wvariadic-macros here. gcc/testsuite/ChangeLog: 2014-08-20 Manuel López-Ibáñez <manu@gcc.gnu.org> PR c/60975 PR c/53063 * gcc.dg/cpp/Wvariadic-1p.c: New test. From-SVN: r214200
Diffstat (limited to 'gcc/doc')
-rw-r--r--gcc/doc/invoke.texi7
-rw-r--r--gcc/doc/options.texi5
2 files changed, 9 insertions, 3 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index b8e4294..f8499bc 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -5127,9 +5127,10 @@ modes. To inhibit the warning messages, use @option{-Wno-long-long}.
@item -Wvariadic-macros
@opindex Wvariadic-macros
@opindex Wno-variadic-macros
-Warn if variadic macros are used in pedantic ISO C90 mode, or the GNU
-alternate syntax when in pedantic ISO C99 mode. This is default.
-To inhibit the warning messages, use @option{-Wno-variadic-macros}.
+Warn if variadic macros are used in ISO C90 mode, or if the GNU
+alternate syntax is used in ISO C99 mode. This is enabled by either
+@option{-Wpedantic} or @option{-Wtraditional}. To inhibit the warning
+messages, use @option{-Wno-variadic-macros}.
@item -Wvarargs
@opindex Wvarargs
diff --git a/gcc/doc/options.texi b/gcc/doc/options.texi
index 938017a..ac4452e 100644
--- a/gcc/doc/options.texi
+++ b/gcc/doc/options.texi
@@ -482,4 +482,9 @@ The option is omitted from the producer string written by
@item PchIgnore
Even if this is a target option, this option will not be recorded / compared
to determine if a precompiled header file matches.
+
+@item CPP(@var{var})
+The state of this option should be kept in sync with the preprocessor
+option @var{var}.
+
@end table