id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc 1119,enable_reference_tracking copy constructor does not call base class version,Paolo,Eric Niebler,"I get warning messages whenever I use xpressive compiling with gcc -Wextra. The problem is that the copy constructor of `enable_reference_tracking` does not call that of `enable_shared_from_this`. To reproduce, just compile the first example in the xpressive manual with the -Wextra flag of gcc. ",Bugs,closed,To Be Determined,xpressive,Boost 1.34.1,Cosmetic,fixed,,