[R-pkg-team] Bug#1032545: r-cran-qpdf: FTBFS in testing: QPDF.hh:1569:36: error: ‘std::string_view’ has not been declared

[Sebastian Ramacher]

On 2023-03-09 21:13:02 +0100, Andreas Tille wrote:
> Hi,
> 
> Am Wed, Mar 08, 2023 at 09:30:38PM +0100 schrieb Lucas Nussbaum:
> > > /usr/include/qpdf/QPDF.hh:1569:36: error: ‘std::string_view’ has not been declared
> > >  1569 |     void linearizationWarning(std::string_view);
> > >       |                                    ^~~~~~~~~~~
> > > In file included from bindings.cpp:3:
> > > /usr/include/qpdf/QPDFWriter.hh:557:27: error: ‘std::string_view’ has not been declared
> > >   557 |     void writeString(std::string_view str);
> > >       |                           ^~~~~~~~~~~
> > > /usr/include/qpdf/QPDFWriter.hh:559:30: error: ‘std::string_view’ has not been declared
> > >   559 |     void writeStringQDF(std::string_view str);
> > >       |                              ^~~~~~~~~~~
> > > /usr/include/qpdf/QPDFWriter.hh:560:32: error: ‘std::string_view’ has not been declared
> > >   560 |     void writeStringNoQDF(std::string_view str);
> > >       |                                ^~~~~~~~~~~
> > > make[1]: *** [/usr/lib/R/etc/Makeconf:178: bindings.o] Error 1
> 
> This error occures due to the upgrade of qpdf from 11.2.0 to 11.3.0.
> r-cran-qpdf ships with a code copy of 11.2.0 which was removed in favour
> of dynamic linking.  The only way I see to fix this bug while keeping
> the same r-cran-qpdf version is to keep the original upstream tarball
> and link against the code copy.
> 
> What do you think?

std::string_view was introduced in C++17, but r-cran-qpdf is building
with C++11. Have you tried bumping the C++ version?

Cheers
-- 
Sebastian Ramacher