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comparison 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
comparison
equal deleted inserted replaced
68:561a7518be6b 111:04ced10e8804
8 ifelse(,,,[AC_SUBST(LIBTOOL) 8 ifelse(,,,[AC_SUBST(LIBTOOL)
9 AC_DEFUN([AM_PROG_LIBTOOL]) 9 AC_DEFUN([AM_PROG_LIBTOOL])
10 AC_DEFUN([AC_LIBTOOL_DLOPEN]) 10 AC_DEFUN([AC_LIBTOOL_DLOPEN])
11 AC_DEFUN([AC_PROG_LD]) 11 AC_DEFUN([AC_PROG_LD])
12 ]) 12 ])
13
14 dnl Check whether POSIX's signgam is defined in math.h.
15 AC_DEFUN([LIBQUAD_CHECK_MATH_H_SIGNGAM], [
16 AC_CACHE_CHECK([whether the math.h includes POSIX's signgam],
17 libgfor_cv_have_math_h_signgam, [
18 save_CFLAGS="$CFLAGS"
19 CFLAGS="$CFLAGS -Werror"
20 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
21 #include <math.h>
22 void foo(void) { signgam = 1; }]], [])],
23 libgfor_cv_have_math_h_signgam=yes,
24 libgfor_cv_have_math_h_signgam=no)
25 CFLAGS="$save_CFLAGS"])
26 if test $libgfor_cv_have_math_h_signgam = yes; then
27 AC_DEFINE(HAVE_MATH_H_SIGNGAM, 1,
28 [Define to 1 if the math.h includes POSIX's signgam.])
29 fi])