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annotate m4/truncl-ieee.m4 @ 14022:d7ccab3aa576

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truncl-ieee: Make it work on OSF/1 5.1 with cc. * doc/posix-functions/truncl.texi: Mention the OSF/1 5.1 bug. * m4/truncl.m4 (gl_FUNC_TRUNCL): If gl_FUNC_TRUNCL_IEEE is also used, test whether truncl works according to ISO C 99 with IEC 60559. * m4/truncl-ieee.m4: New file. * modules/truncl-ieee (Files): Add it and m4/minus-zero.m4, m4/signbit.m4. (configure.ac): Invoke gl_FUNC_TRUNCL_IEEE.
author Bruno Haible <bruno@clisp.org>
date Sat, 25 Dec 2010 12:06:28 +0100
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children 97fc9a21a8fb
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14022
d7ccab3aa576 truncl-ieee: Make it work on OSF/1 5.1 with cc.
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1 # truncl-ieee.m4 serial 1
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2 dnl Copyright (C) 2010 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 dnl This macro is in a separate file (not in truncl.m4 and not inlined in the
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8 dnl module description), so that gl_FUNC_TRUNCL can test whether 'aclocal' has
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9 dnl found uses of this macro.
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10
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11 AC_DEFUN([gl_FUNC_TRUNCL_IEEE],
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12 [
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13 m4_divert_text([INIT_PREPARE], [gl_truncl_required=ieee])
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14 AC_REQUIRE([gl_FUNC_TRUNCL])
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15 ])