Re: LilyPond 2.5: isinf macro/function/template

[Christian Hitz]

Hi Andreas,

I tried to compile your two files here on MacOS X. The C file worked 
right away. The C++ file didn't. In my <cmath> most of the macros are 
indeed "#undef"ed and redefined with template functions (see the 
attached cmath). But some macros like isinf/isnan are only redefined if 
_GLIBCPP_USE_C99 is set. I got lilypond 2.5.2 to compile by doing the 
following things:

- set _GLIBCPP_USE_C99 before #include <cmath> in the files that use 
isinf/isnan
- replace each occurrence of isinf/isnan with std::isinf/std::isnan

I don't know if this breaks compilation on linux.

Christian

Am 28.11.2004 um 12:05 schrieb Andreas Scherer:

> IIRC, MacOS X is based upon "BSD", so it is unclear to me, how this
> "BSD-conforming" function/macro should be unavailable for use in C++
> programs.  My best guess is that BSD /only/ has the "isinf" /macro/ in
> <math.h> and no underlying "isinf" system /function/ reachable through 
> a
> different interface (like said /template function/ in <cmath> on 
> Linux) /and/
> <cmath> "#undef"ines exactly this macro.
>
> Hopefully, some member with MacOS eXperience can find a compliant 
> solution to
> the problem.

cmath.zip
Description: Zip archive

mac.patch.zip
Description: Zip archive