1#serial 8 -*- autoconf -*- 2 3dnl From Jim Meyering. 4dnl 5dnl See if the glibc *_unlocked I/O macros or functions are available. 6dnl Use only those *_unlocked macros or functions that are declared 7dnl (because some of them were declared in Solaris 2.5.1 but were removed 8dnl in Solaris 2.6, whereas we want binaries built on Solaris 2.5.1 to run 9dnl on Solaris 2.6). 10 11AC_DEFUN([jm_FUNC_GLIBC_UNLOCKED_IO], 12[ 13 dnl Persuade glibc and Solaris <stdio.h> to declare 14 dnl fgets_unlocked(), fputs_unlocked() etc. 15 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) 16 17 AC_CHECK_DECLS_ONCE( 18 [clearerr_unlocked feof_unlocked ferror_unlocked 19 fflush_unlocked fgets_unlocked fputc_unlocked fputs_unlocked 20 fread_unlocked fwrite_unlocked getc_unlocked 21 getchar_unlocked putc_unlocked putchar_unlocked]) 22]) 23