id summary reporter owner description type status milestone component version severity resolution keywords cc 12560 heap_merge.hpp has a missing #include gromer@… timblechmann "`heap/heap_merge.hpp` uses `std::max`, but does not `#include` the `` header that defines it. Among other things, this prevents Boost.Heap from being built using C++ modules (see http://clang.llvm.org/docs/Modules.html), because modules require headers to be self-contained. A fix is attached (relative to 1.60.0)." Bugs closed To Be Determined heap Boost 1.60.0 Problem fixed