All,

This patch restores bootstrap on i386-*-freebsd*.
The build was failing after the introduction of -std=c++98 
configure/build flag. The -std=c++98 enables strict_ansi and on FreeBSD 
the libc function atoll is not defined for this.

But the configure always stated atoll available.....

A bit debugging showed, to my understanding now, the AC_CHECK_FUNCS only 
checks it a func is available, not more. While the gcc_AC_CHECK_DECLS 
really recognises the build flags and tells me that atoll w/o std=c++98 
is available and with std=c++98 it is not available.

So, the below patch addresses this and restores bootstrap on FreeBSD.

Ok for trunk?

Thanks,
Andreas

2015-05-28  Andreas Tobler  <andreast@gcc.gnu.org>

	* configure.ac: Move the atoll check from AC_CHECK_FUNCS to
	gcc_AC_CHECK_DECLS.
	* configure: Regenerate.