Index: bison/src/bison/2.4.1/bison-2.4.1-src/m4/unlocked-io.m4 |
=================================================================== |
--- bison/src/bison/2.4.1/bison-2.4.1-src/m4/unlocked-io.m4 (revision 0) |
+++ bison/src/bison/2.4.1/bison-2.4.1-src/m4/unlocked-io.m4 (revision 0) |
@@ -0,0 +1,42 @@ |
+# unlocked-io.m4 serial 14 |
+ |
+# Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
+# Free Software Foundation, Inc. |
+# |
+# This file is free software; the Free Software Foundation |
+# gives unlimited permission to copy and/or distribute it, |
+# with or without modifications, as long as this notice is preserved. |
+ |
+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([gl_FUNC_GLIBC_UNLOCKED_IO], |
+[ |
+ AC_DEFINE([USE_UNLOCKED_IO], 1, |
+ [Define to 1 if you want getc etc. to use unlocked I/O if available. |
+ Unlocked I/O can improve performance in unithreaded apps, |
+ but it is not safe for multithreaded apps.]) |
+ |
+ 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]) |
+ AC_CHECK_DECLS_ONCE([feof_unlocked]) |
+ AC_CHECK_DECLS_ONCE([ferror_unlocked]) |
+ AC_CHECK_DECLS_ONCE([fflush_unlocked]) |
+ AC_CHECK_DECLS_ONCE([fgets_unlocked]) |
+ AC_CHECK_DECLS_ONCE([fputc_unlocked]) |
+ AC_CHECK_DECLS_ONCE([fputs_unlocked]) |
+ AC_CHECK_DECLS_ONCE([fread_unlocked]) |
+ AC_CHECK_DECLS_ONCE([fwrite_unlocked]) |
+ AC_CHECK_DECLS_ONCE([getc_unlocked]) |
+ AC_CHECK_DECLS_ONCE([getchar_unlocked]) |
+ AC_CHECK_DECLS_ONCE([putc_unlocked]) |
+ AC_CHECK_DECLS_ONCE([putchar_unlocked]) |
+]) |