[libvirt] Hard requirement on gcrypt.h?

[Eugene Marcotte]

On Mon, 2013-02-25 at 17:42 -0700, Eric Blake wrote:
> On 02/25/2013 05:38 PM, Eugene Marcotte wrote:
> > Hi,
> > 
> > I'm building libvirt for the first time and figuring out what libraries
> > are required to get the simplest possible thing working.
> > 
> > Is there a hard requirement on gcrypt? I got libvirt past the configure
> > script but the build failed on gcrypt.h. It looks like the include for
> > it could be moved inside the #if WITH_GNUTLS section of libirt.c, if I
> > understand what configure.ac is trying to set up.
> 
> Can you show the exact compiler error message you received?  You are
> correct that this header is non-standard, and should be properly ifdef'd
> before we try to use it.
> 

make[3]: Entering directory `/home/emarcotte/src/libvirt/src'
  CC       libvirt_driver_la-libvirt.lo
libvirt.c:34:20: fatal error: gcrypt.h: No such file or directory
compilation terminated.

Of course, installing gcrypt-devel fixes it, but I would have expected
configure to fail. I can try to add an explicit check for gcrypt.h if
it's required.