g++-4.3 report following error on moldyn.h $ echo "#include <moldyn.h>" | /usr/lib/gcc-snapshot/bin/g++ -x c++ -c - `pkg-config --cflags libghemical` In file included from <stdin>:1: /usr/include/ghemical/moldyn.h: In constructor 'moldyn_param::moldyn_param(setup*)': /usr/include/ghemical/moldyn.h:91: error: 'strcpy' was not declared in this scope following patch can resolve this bug. $ diff -u moldyn.h /usr/include/ghemical/moldyn.h --- moldyn.h 2007-10-23 23:35:29.000000000 +0800 +++ /usr/include/ghemical/moldyn.h 2007-10-23 23:35:51.000000000 +0800 @@ -10,6 +10,8 @@ #ifndef MOLDYN_H #define MOLDYN_H +#include <cstring> + class moldyn_param; class moldyn; @@ -88,7 +90,7 @@ langevin = false; - strcpy(filename, "untitled.traj"); + std::strcpy(filename, "untitled.traj"); } ~moldyn_param(void) { } -- Best Regards, LI Daobing