- AC_CHECK_DECLS([clearerr_unlocked, feof_unlocked, ferror_unlocked,
- fflush_unlocked, fputc_unlocked, fread_unlocked, fwrite_unlocked,
- getc_unlocked, getchar_unlocked, putc_unlocked, putchar_unlocked])
+ AC_CHECK_DECLS([clearerr_unlocked,feof_unlocked,ferror_unlocked,fflush_unlocked,fgets_unlocked,fputc_unlocked,fputs_unlocked,fread_unlocked,fwrite_unlocked,getc_unlocked,getchar_unlocked,putc_unlocked,putchar_unlocked])
+ AC_CHECK_FUNCS(clearerr_unlocked feof_unlocked ferror_unlocked fflush_unlocked fgets_unlocked fputc_unlocked fputs_unlocked fread_unlocked fwrite_unlocked getc_unlocked getchar_unlocked putc_unlocked putchar_unlocked)