[polygon] Build fails with gcc-4.7

[Denis Arnaud]

Reference: ​http://bugzilla.redhat.com/show_bug.cgi?id=784654

Building the attached gtl-polygon-set.cc (example program from upstream website: http://www.boost.org/doc/libs/1_48_0/libs/polygon/doc/gtl_polygon_set_usage.htm) with boost-devel-1.48.0-8.fc17.x86_64 and gcc-c++-4.7.0-0.9.fc17.x86_64 fails with: g++ -Wall -O2 -g gtl-polygon-set.cc -o gtl-polygon-set In file included from /usr/include/boost/polygon/polygon.hpp:64:0,

from gtl-polygon-set.cc:8:

/usr/include/boost/polygon/polygon_90_set_data.hpp: In instantiation of ‘void boost::polygon::polygon_90_set_data<T>::sort() const [with T = int]’: /usr/include/boost/polygon/polygon_45_set_data.hpp:1550:7: required from ‘void boost::polygon::polygon_45_set_data<Unit>::applyAdaptiveBoolean_(boost::polygon::polygon_45_set_data<Unit>&, const boost::polygon::polygon_45_set_data<Unit>&) const [with int op = 0; Unit = int]’ /usr/include/boost/polygon/detail/polygon_set_view.hpp:108:9: required from ‘void boost::polygon::execute_boolean_op(value_type&, const geometry_type_1&, const geometry_type_2&) [with value_type = boost::polygon::polygon_set_data<int>; geometry_type_1 = std::vector<boost::polygon::polygon_data<int> >; geometry_type_2 = boost::polygon::rectangle_data<int>; int op_type = 0]’ /usr/include/boost/polygon/detail/polygon_set_view.hpp:197:5: required from ‘geometry_type_1& boost::polygon::self_assignment_boolean_op(geometry_type_1&, const geometry_type_2&) [with geometry_type_1 = std::vector<boost::polygon::polygon_data<int> >; geometry_type_2 = boost::polygon::rectangle_data<int>; int op_type = 0]’ /usr/include/boost/polygon/polygon_set_concept.hpp:388:90: required from ‘typename boost::enable_if<typename boost::polygon::gtl_and_4<boost::polygon::operators::yes_ps_ope, boost::polygon::gtl_yes, typename boost::polygon::is_mutable_polygon_set_type<polygon_set_type_1>::type, typename boost::polygon::is_any_polygon_set_type<polygon_set_type_2>::type>::type, geometry_type_1>::type& boost::polygon::operators::operator+=(geometry_type_1&, const geometry_type_2&) [with geometry_type_1 = std::vector<boost::polygon::polygon_data<int> >; geometry_type_2 = boost::polygon::rectangle_data<int>; typename boost::enable_if<typename boost::polygon::gtl_and_4<boost::polygon::operators::yes_ps_ope, boost::polygon::gtl_yes, typename boost::polygon::is_mutable_polygon_set_type<polygon_set_type_1>::type, typename boost::polygon::is_any_polygon_set_type<polygon_set_type_2>::type>::type, geometry_type_1>::type = std::vector<boost::polygon::polygon_data<int> >]’ gtl-polygon-set.cc:20:43: required from here /usr/include/boost/polygon/polygon_90_set_data.hpp:299:9: error: ‘gtlsort’ was not declared in this scope, and no declarations were found by argument-dependent lookup at the point of instantiation [-fpermissive] In file included from /usr/include/boost/polygon/detail/scan_arbitrary.hpp:13:0,

from /usr/include/boost/polygon/polygon_set_data.hpp:929, from /usr/include/boost/polygon/polygon.hpp:82, from gtl-polygon-set.cc:8:

/usr/include/boost/polygon/detail/polygon_sort_adaptor.hpp:58:10: note: ‘template<class iter_type, class pred_type> void boost::polygon::gtlsort(iter_type, iter_type, const pred_type&)’ declared here, later in the translation unit make: * [gtl-polygon-set] Error 1

This can be fixed by patching boost/polygon.hpp to make the gtlsort() declaration appear earlier: --- /usr/include/boost/polygon/polygon.hpp.orig 2012-01-26 01:05:15.934998805 +0800 +++ /usr/include/boost/polygon/polygon.hpp 2012-01-26 01:13:10.547000000 +0800 @@ -24,6 +24,8 @@

#include "transform.hpp" #include "detail/transform_detail.hpp"

+#include "detail/polygon_sort_adaptor.hpp" +

interval #include "interval_data.hpp" #include "interval_traits.hpp"

[Denis Arnaud]

Source code to reproduce the compilation error

[Denis Arnaud]

Patch to fix the compilation issue

[sydorchuk.andriy@…]

Will be fixed in Boost 1.52.

Andrii Sydorchuk