libxml2 2.9.8 build error on AIX, HP-UX and old Visual Studio like 10.0

Fabrice Manfroi <[email protected]> Thu, 15 Mar 2018 15:50:58 +0100

Newsgroups	gmane.comp.gnome.lib.xml.general
Message-ID	<[email protected]>

Hello,

I'm trying to build the last libxml2 2.9.8 on AIX, HP-UX and Visual
Studio 10.0 ans I get the same kind of errors:

VS 2010:

..\xpath.c(506) : error C2099: initializer is not a constant
..\xpath.c(507) : error C2099: initializer is not a constant
..\xpath.c(508) : error C2099: initializer is not a constant

and the same kind of error at the same lines on AIX 7.1 with xlc and
HP-UX Itanium 11.23 (same issue for HP-UX PA-RISC 11.31 with natif cc or
gcc).

If I have a look into the math.h header on AIX, I see the following
definition for NAN:

{code}
static  const unsigned int _SQNAN = 0x7fc00000;
#define NAN       (*((float *)(&_SQNAN)))
{code}

Indeed, it's not a constant. The compilation error make sense...

If I replace in xpace.c "double xmlXPathNAN = NAN;" by "double
xmlXPathNAN = (float)0x7fc00000;" it works.

And it's the same kind of issue for VS 2010 and HP-UX: NAN and INFINITY
are not defined as a constant.

So, the question is, how to fix that in order to have all platforms
working? I need some advises.

Thanks in advance.

Best Regards.

-- 
Fabrice MANFROI
--
Four J's Development Tools (www.4js.com)
[email protected] - Tel +33 (0)3 88 18 61 20 - Fax +33 (0)3 88 18 61 21
--

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