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annotate libquadmath/acinclude.m4 @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
parents 561a7518be6b
children 84e7813d76e9
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
68
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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1 dnl ----------------------------------------------------------------------
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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2 dnl This whole bit snagged from libgfortran.
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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3
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
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4 sinclude(../libtool.m4)
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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5 dnl The lines below arrange for aclocal not to bring an installed
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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6 dnl libtool.m4 into aclocal.m4, while still arranging for automake to
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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7 dnl add a definition of LIBTOOL to Makefile.in.
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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8 ifelse(,,,[AC_SUBST(LIBTOOL)
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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9 AC_DEFUN([AM_PROG_LIBTOOL])
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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10 AC_DEFUN([AC_LIBTOOL_DLOPEN])
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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11 AC_DEFUN([AC_PROG_LD])
561a7518be6b update gcc-4.6
Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
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12 ])
111
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13
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14 dnl Check whether POSIX's signgam is defined in math.h.
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15 AC_DEFUN([LIBQUAD_CHECK_MATH_H_SIGNGAM], [
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16 AC_CACHE_CHECK([whether the math.h includes POSIX's signgam],
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17 libgfor_cv_have_math_h_signgam, [
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18 save_CFLAGS="$CFLAGS"
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19 CFLAGS="$CFLAGS -Werror"
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20 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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21 #include <math.h>
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22 void foo(void) { signgam = 1; }]], [])],
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23 libgfor_cv_have_math_h_signgam=yes,
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24 libgfor_cv_have_math_h_signgam=no)
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25 CFLAGS="$save_CFLAGS"])
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26 if test $libgfor_cv_have_math_h_signgam = yes; then
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27 AC_DEFINE(HAVE_MATH_H_SIGNGAM, 1,
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28 [Define to 1 if the math.h includes POSIX's signgam.])
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29 fi])