id summary reporter owner description type status milestone component version severity resolution keywords cc 9240 boost 1.54.0 math/constants/constants.hpp doesn't compile with gcc 4.8 with c++11 if you undef __STRICT_ANSI__ richardg.work@… John Maddock "In gcc 4.8, they disabled some numeric literal types for c++11, including the ""Q"" suffix which is used for float128. Unless you use -fext-numeric-literals, you get a compile error whilst including math/constants/constants.hpp if you compile with -U!__STRICT_ANSI!__" Bugs closed To Be Determined math Boost 1.54.0 Problem fixed