tags +upstream
thanks
Hello Jens,
this is clearly an upstream bug. Adding bug-autoconf.
* Jens Seidel wrote on Fri, Apr 23, 2010 at 05:30:55PM CEST:
> AC_LANG_PUSH(C++)
> AC_CHECK_DECL(std::setlocale, [AC_DEFINE([HAVE_SETLOCALE], [], [Define if
> setlocale is available in clocale])], , [#include <clocale>])
>
> results in the warning
> conftest.cpp:37:12: warning: extra tokens at end of #ifndef directive
> in config.log.
>
> The corresponding code is:
>
> #include <clocale>
>
> int
> main ()
> {
> #ifndef std::setlocale
> (void) std::setlocale;
> #endif
>
> ;
> return 0;
> }
>
> The problem is "#ifndef std::setlocale" where ":" is no proper macro
> character. In this case the ifndef can be ommitted.
Yep. This is another problem with the AC_CHECK_DECL* macros and C++
sources. There is a pending patch for another issue in this area,
http://thread.gmane.org/gmane.comp.gcc.patches/201265/focus=12673
but it does not address the above.
It would probably be sufficient to just not use the #ifndef if the name
contained characters not suitable for a CPP macro.
Cheers, and thanks for the bug report,
Ralf
