| #serial 8 -*- autoconf -*- |
| |
| dnl From Jim Meyering. |
| dnl |
| dnl See if the glibc *_unlocked I/O macros or functions are available. |
| dnl Use only those *_unlocked macros or functions that are declared |
| dnl (because some of them were declared in Solaris 2.5.1 but were removed |
| dnl in Solaris 2.6, whereas we want binaries built on Solaris 2.5.1 to run |
| dnl on Solaris 2.6). |
| |
| AC_DEFUN([jm_FUNC_GLIBC_UNLOCKED_IO], |
| [ |
| dnl Persuade glibc and Solaris <stdio.h> to declare |
| dnl fgets_unlocked(), fputs_unlocked() etc. |
| AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) |
| |
| AC_CHECK_DECLS_ONCE( |
| [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]) |
| ]) |
