Re: [PATCH] Amend AC_CHECK_HEADER_STDBOOL for C++11 and modern dialects
Paul Eggert <[email protected]>
| Newsgroups | gmane.comp.sysutils.autoconf.patches,gmane.comp.lib.gnulib.bugs |
|---|---|
| Organization | UCLA Computer Science Department |
| Message-ID | <[email protected]> |
On 05/31/2016 12:33 AM, David Seifert wrote: > configure.ac: > > AC_INIT > AC_PROG_CXX > m4_include([stdbool.m4]) > AC_LANG_PUSH([C++]) > AC_CHECK_HEADER_STDBOOL Thanks for the example. I installed your patch into gnulib. But I don't see how it can work without __bool_true_false_are_defined being defined, so I installed the attached additional patch as well. Please let us know if you see a problem with this. CC:ing [email protected] since I installed a patch there too, to match.
0001-stdbool-Restore-__bool_true_false_are_defined-check.patch
(application/x-patch, 1.8 KB)
From cb7476a1db148980b8cff02824774598ffaea8ce Mon Sep 17 00:00:00 2001 From: Paul Eggert <[email protected]> Date: Tue, 31 May 2016 09:03:15 -0700 Subject: [PATCH] stdbool: Restore __bool_true_false_are_defined check * m4/stdbool.m4 (AC_CHECK_HEADER_STDBOOL): __bool_true_false_are_defined is still defined, even with C++11. --- ChangeLog | 6 ++++++ m4/stdbool.m4 | 9 +++++---- 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/ChangeLog b/ChangeLog index 02a7c86..a6df98a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2016-05-31 Paul Eggert <[email protected]> + + stdbool: Restore __bool_true_false_are_defined check + * m4/stdbool.m4 (AC_CHECK_HEADER_STDBOOL): + __bool_true_false_are_defined is still defined, even with C++11. + 2016-05-31 David Seifert <[email protected]> (tiny change) stdbool: Port AC_CHECK_HEADER_STDBOOL to C++11 diff --git a/m4/stdbool.m4 b/m4/stdbool.m4 index 0863847..a556153 100644 --- a/m4/stdbool.m4 +++ b/m4/stdbool.m4 @@ -44,7 +44,7 @@ AC_DEFUN([AC_CHECK_HEADER_STDBOOL], [[ #include <stdbool.h> - #if __cplusplus < 201103L + #if __cplusplus < 201103 #ifndef bool "error: bool is not defined" #endif @@ -60,9 +60,10 @@ AC_DEFUN([AC_CHECK_HEADER_STDBOOL], #if true != 1 "error: true is not 1" #endif - #ifndef __bool_true_false_are_defined - "error: __bool_true_false_are_defined is not defined" - #endif + #endif + + #ifndef __bool_true_false_are_defined + "error: __bool_true_false_are_defined is not defined" #endif struct s { _Bool s: 1; _Bool t; } s; -- 2.5.5