nexmon – Blame information for rev 1
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Rev | Author | Line No. | Line |
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1 | office | 1 | # unlocked-io.m4 serial 15 |
2 | |||
3 | # Copyright (C) 1998-2006, 2009-2011 Free Software Foundation, Inc. |
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4 | # |
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5 | # This file is free software; the Free Software Foundation |
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6 | # gives unlimited permission to copy and/or distribute it, |
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7 | # with or without modifications, as long as this notice is preserved. |
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8 | |||
9 | dnl From Jim Meyering. |
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10 | dnl |
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11 | dnl See if the glibc *_unlocked I/O macros or functions are available. |
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12 | dnl Use only those *_unlocked macros or functions that are declared |
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13 | dnl (because some of them were declared in Solaris 2.5.1 but were removed |
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14 | dnl in Solaris 2.6, whereas we want binaries built on Solaris 2.5.1 to run |
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15 | dnl on Solaris 2.6). |
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16 | |||
17 | AC_DEFUN([gl_FUNC_GLIBC_UNLOCKED_IO], |
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18 | [ |
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19 | AC_DEFINE([USE_UNLOCKED_IO], [1], |
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20 | [Define to 1 if you want getc etc. to use unlocked I/O if available. |
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21 | Unlocked I/O can improve performance in unithreaded apps, |
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22 | but it is not safe for multithreaded apps.]) |
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23 | |||
24 | dnl Persuade glibc and Solaris <stdio.h> to declare |
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25 | dnl fgets_unlocked(), fputs_unlocked() etc. |
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26 | AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS]) |
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27 | |||
28 | AC_CHECK_DECLS_ONCE([clearerr_unlocked]) |
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29 | AC_CHECK_DECLS_ONCE([feof_unlocked]) |
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30 | AC_CHECK_DECLS_ONCE([ferror_unlocked]) |
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31 | AC_CHECK_DECLS_ONCE([fflush_unlocked]) |
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32 | AC_CHECK_DECLS_ONCE([fgets_unlocked]) |
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33 | AC_CHECK_DECLS_ONCE([fputc_unlocked]) |
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34 | AC_CHECK_DECLS_ONCE([fputs_unlocked]) |
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35 | AC_CHECK_DECLS_ONCE([fread_unlocked]) |
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36 | AC_CHECK_DECLS_ONCE([fwrite_unlocked]) |
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37 | AC_CHECK_DECLS_ONCE([getc_unlocked]) |
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38 | AC_CHECK_DECLS_ONCE([getchar_unlocked]) |
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39 | AC_CHECK_DECLS_ONCE([putc_unlocked]) |
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40 | AC_CHECK_DECLS_ONCE([putchar_unlocked]) |
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41 | ]) |