rename() fails on Windows if the destination exists.

[4msysgit-hv.git] / spawn-pipe.h

int spawnvpe_pipe(const char *cmd, const char **argv, const char **env, int pin[], int pout[]);
const char **copy_environ();
const char **copy_env(const char **env);
void env_unsetenv(const char **env, const char *name);