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annotate m4/msvc-inval.m4 @ 15857:6b8400199763

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New module 'sqrtf'. * lib/math.in.h (sqrtf): New declaration. * lib/sqrtf.c: New file. * m4/sqrtf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether sqrtf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_SQRTF, HAVE_SQRTF. * modules/math (Makefile.am): Substitute GNULIB_SQRTF, HAVE_SQRTF. * modules/sqrtf: New file. * tests/test-math-c++.cc: Check the declaration of sqrtf. * doc/posix-functions/sqrtf.texi: Mention the new module.
author Bruno Haible <bruno@clisp.org>
date Sat, 08 Oct 2011 21:16:48 +0200
parents 6ef4d991e582
children 8250f2777afc
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15645
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1 # msvc-inval.m4 serial 1
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2 dnl Copyright (C) 2011 Free Software Foundation, Inc.
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3 dnl This file is free software; the Free Software Foundation
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4 dnl gives unlimited permission to copy and/or distribute it,
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5 dnl with or without modifications, as long as this notice is preserved.
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6
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7 AC_DEFUN([gl_MSVC_INVAL],
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8 [
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9 AC_CHECK_FUNCS_ONCE([_set_invalid_parameter_handler])
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10 if test $ac_cv_func__set_invalid_parameter_handler = yes; then
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11 HAVE_MSVC_INVALID_PARAMETER_HANDLER=1
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12 AC_DEFINE([HAVE_MSVC_INVALID_PARAMETER_HANDLER], [1],
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13 [Define to 1 on MSVC platforms that have the "invalid parameter handler"
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14 concept.])
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15 else
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16 HAVE_MSVC_INVALID_PARAMETER_HANDLER=0
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17 fi
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18 AC_SUBST([HAVE_MSVC_INVALID_PARAMETER_HANDLER])
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19 ])