#endif
#if defined(_GNU_SOURCE)
+void *alloca(size_t);
char *mktemp (char *);
void *valloc (size_t);
void *memalign(size_t, size_t);
int clearenv(void);
int ptsname_r(int, char *, size_t);
+char *ecvt(double, int, int *, int *);
+char *fcvt(double, int, int *, int *);
+char *gcvt(double, int, char *);
#endif