Mercurial > hg > octave-shane > gnulib-hg
diff m4/unlocked-io.m4 @ 4107:7c1a6b73f48e
An autoconf macro for its associated module.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Tue, 31 Dec 2002 13:42:06 +0000 |
| parents | |
| children | ae4b157d42ad |
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new file mode 100644 --- /dev/null +++ b/m4/unlocked-io.m4 @@ -0,0 +1,22 @@ +#serial 7 -*- 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 <stdio.h> to declare fgets_unlocked(), fputs_unlocked() + dnl etc. + AC_REQUIRE([AC_GNU_SOURCE]) + + 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]) +])