expect.c, [...] (unix sections): Guard with "__unix__" instead of "unix".

expect.c, [...] (unix sections): Guard with "__unix__" instead of "unix".

2004-10-26  Olivier Hainque  <hainque@act-europe.fr>
	    Nicolas Setton  <setton@act-europe.fr>

	* expect.c, adaint.c, link.c, sysdep.c (unix sections): Guard with
	"__unix__" instead of "unix".
	The latter is implicitly defined by gcc3.2 but not by gcc >= 3.4, so the
	sections were just mistakenly ignored. The former is
	implicitely defined by gcc2.8, gcc3.2 and gcc3.4.
	Update #ifdef preprocessor macro to detect the symbol __hpux__ instead
	of hpux. This prevents an unwanted definition of the symbol
	convert_addresses in adaint.o.

From-SVN: r89642