[DRE-maint] Bug#870306: ruby-dep-selector FTBFS with libgecode-dev 5.1.0-2

[Adrian Bunk]

Source: ruby-dep-selector
Version: 1.0.3-2
Severity: serious
Tags: buster sid

https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/ruby-dep-selector.html

...
g++ -I. -I/usr/include/x86_64-linux-gnu/ruby-2.3.0 -I/usr/include/ruby-2.3.0/ruby/backward -I/usr/include/ruby-2.3.0 -I. -I/usr/include -Wdate-time -D_FORTIFY_SOURCE=2   -fPIC -g -O2 -fdebug-prefix-map=/build/ruby2.3-8Td9HM/ruby2.3-2.3.3=. -fstack-protector-strong -Wformat -Werror=format-security  -o dep_selector_to_gecode.o -c dep_selector_to_gecode.cpp
In file included from dep_selector_to_gecode.cpp:26:0:
dep_selector_to_gecode.h:162:25: error: type/value mismatch at argument 1 in template parameter list for 'template<class T, template<class> class E> class Gecode::RBS'
   RBS<DFS,VersionProblem> solver;
                         ^
dep_selector_to_gecode.h:162:25: note:   expected a type, got 'DFS'
dep_selector_to_gecode.h:162:25: error: type/value mismatch at argument 2 in template parameter list for 'template<class T, template<class> class E> class Gecode::RBS'
dep_selector_to_gecode.h:162:25: note:   expected a class template, got 'VersionProblem'
dep_selector_to_gecode.cpp: In member function 'void VersionProblem::Finalize()':
dep_selector_to_gecode.cpp:404:80: error: no matching function for call to 'branch(VersionProblem&, Gecode::BoolVarArray&, Gecode::IntVarBranch, Gecode::IntValBranch)'
     branch(*this, disabled_package_variables, INT_VAR_SIZE_MIN(), INT_VAL_MIN());
                                                                                ^
...