翻到了邮件列表中：
http://lists.gnu.org/archive/html//bug-gsl/2011-06/msg00006.html
I am not an expert on the nuances of C but, when in debug mode, the Microsoft compiler doesn't like these lines in ode2-intval2 (it compiles them in release mode):
1> rk4imp.c 1>..\..\ode-initval2\rk4imp.c(252): error C2097: illegal initialization 1>..\..\ode-initval2\rk4imp.c(252): error C2097: illegal initialization I don't really know whether this is legal code or not (it looks fine to me).But would it not make sense anyway to use M_SQRT3 rather than sqrt(3) in these initialisations?