annotate m4/atan2f.m4 @ 16201:8250f2777afc

maint: update all copyright year number ranges Run "make update-copyright".
author Jim Meyering <meyering@redhat.com>
date Sun, 01 Jan 2012 10:04:58 +0100
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children fdbe3125f81a
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1 # atan2f.m4 serial 1
16201
8250f2777afc maint: update all copyright year number ranges
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2 dnl Copyright (C) 2011-2012 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_FUNC_ATAN2F],
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8 [
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9 AC_REQUIRE([gl_MATH_H_DEFAULTS])
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10 AC_REQUIRE([gl_FUNC_ATAN2])
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11
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12 dnl Test whether atan2f() exists. Assume that atan2f(), if it exists, is
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13 dnl defined in the same library as atan2().
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14 save_LIBS="$LIBS"
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15 LIBS="$LIBS $ATAN2_LIBM"
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16 AC_CHECK_FUNCS([atan2f])
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17 LIBS="$save_LIBS"
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18 if test $ac_cv_func_atan2f = yes; then
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19 ATAN2F_LIBM="$ATAN2_LIBM"
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20 else
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21 HAVE_ATAN2F=0
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22 ATAN2F_LIBM="$ATAN2_LIBM"
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23 fi
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24 AC_SUBST([ATAN2F_LIBM])
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25 ])