--- boost/math/special_functions/log1p.hpp.orig 2008-09-22 12:26:29.000000000 +0200 +++ boost/math/special_functions/log1p.hpp 2008-09-22 12:32:39.000000000 +0200 @@ -339,7 +339,7 @@ if(x == -1) return -policies::raise_overflow_error( "log1p<%1%>(%1%)", 0, pol); - return ::log1pl(x); + return ::log(1.+x); } #else template