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annotate m4/c-strtod.m4 @ 17363:5a51fb7777a9

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sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin Problem reported by Marco Atzeri in <http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>. * lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]: Simply delegate to the system <sys/select.h> in this case too. Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to be needed on Solaris either. * lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]: Simply delgate to the system <sys/time.h> in this case.
author Paul Eggert <eggert@cs.ucla.edu>
date Tue, 19 Mar 2013 09:08:47 -0700
parents e542fd46ad6f
children 344018b6e5d7
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dcca7ac14066 c-strtod, memcoll, readutmp: no 'static inline'
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1 # c-strtod.m4 serial 15
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2
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3 # Copyright (C) 2004-2006, 2009-2013 Free Software Foundation, Inc.
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4 # This file is free software; the Free Software Foundation
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5 # gives unlimited permission to copy and/or distribute it,
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6 # with or without modifications, as long as this notice is preserved.
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7
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8 # Written by Paul Eggert.
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9
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10 AC_DEFUN([gl_C99_STRTOLD],
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11 [
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12 AC_CACHE_CHECK([whether strtold conforms to C99],
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13 [gl_cv_func_c99_strtold],
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14 [AC_LINK_IFELSE(
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15 [AC_LANG_PROGRAM(
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16 [[/* On HP-UX before 11.23, strtold returns a struct instead of
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17 long double. Reject implementations like that, by requiring
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18 compatibility with the C99 prototype. */
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19 #include <stdlib.h>
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20 static long double (*p) (char const *, char **) = strtold;
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21 static long double
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22 test (char const *nptr, char **endptr)
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23 {
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24 long double r;
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25 r = strtold (nptr, endptr);
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26 return r;
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27 }]],
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28 [[return test ("1.0", NULL) != 1 || p ("1.0", NULL) != 1;]])],
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29 [gl_cv_func_c99_strtold=yes],
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30 [gl_cv_func_c99_strtold=no])])
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31 if test $gl_cv_func_c99_strtold = yes; then
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32 AC_DEFINE([HAVE_C99_STRTOLD], [1], [Define to 1 if strtold conforms to C99.])
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33 fi
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34 ])
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35
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36 dnl Prerequisites of lib/c-strtod.c.
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37 AC_DEFUN([gl_C_STRTOD],
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38 [
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39 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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40 AC_CHECK_FUNCS([strtod_l])
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41 ])
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42
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43 dnl Prerequisites of lib/c-strtold.c.
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44 AC_DEFUN([gl_C_STRTOLD],
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45 [
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46 AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
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47 AC_REQUIRE([gl_C99_STRTOLD])
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48 AC_CHECK_FUNCS([strtold_l])
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49 ])