On Fr., 26. Aug. 2011 03:06:41 CEST, Warren Block <[email protected]> wrote:
> On Thu, 25 Aug 2011, Rusty Nejdl wrote:
>
> > I was building a port that depended on threaded perl and used code
> > like this:
> >
> > .if exists(${PERL})
> > PERL_THREADS!= ${PERL} -V::usethreads
> > .if ${PERL_THREADS}!="'define';"
> > IGNORE= needs a threaded Perl, build with WITH_THREADS=yes
> > flag and try again
> > .endif
> > .else
> > IGNORE= needs an existing installation of Perl built with
> > WITH_THREADS=yes
> > .endif
> >
> > Perhaps you could use something similar?
>
> Some searching found security/clamav/Makefile:
>
> .if (defined(WITH_LLVM) || defined(WITH_LLVM_PORTS)) &&
> defined(WITH_TESTS) pre-configure:
> @if ! ${PYTHON_CMD} -c "import thread" >/dev/null 2>&1;
>then \
> ${ECHO_MSG} ""; \
> ${ECHO_MSG}
> "=========================================================================
> ${ECHO_MSG} "= Unit tests REQUIRES python
>built with
> thread support, and yours is not. ${ECHO_MSG}
> "= It will
> not be called during this build ${ECHO_MSG}
> "=========================================================================
> ${ECHO_MSG} ""; \
> ${TOUCH}
> ${PY_NO_THREAD}; \ fi .endif
I know that a few ports try to be smart and check a bit more then others but
the problem is that checking for each and every combination of options for all
dependencies does not scale. In big ports you end up with a big mess. Many
projects have their configure to check specific features and version ranges of
their requirements which usually gives you a good idea of what is wrong but
vbox doesnt. So if someone wants to improve that send a patch for vbox
configure to check for python threads.
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