#serial 7 -*- autoconf -*- dnl From Jim Meyering. dnl dnl See if the glibc *_unlocked I/O macros are available. dnl Use only those *_unlocked macros that are declared. dnl AC_DEFUN([jm_FUNC_GLIBC_UNLOCKED_IO], [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])])