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$NetBSD: patch-ab,v 1.2 2009/10/25 12:49:04 ahoka Exp $
--- configure.ac.orig 2008-02-10 11:31:33.000000000 +0100
+++ configure.ac
@@ -206,11 +206,12 @@ SEE_ARG_ENABLE(longjmperror,[yes],
[Define if you want SEE to catch longjmp corruption])
])
-SEE_ARG_ENABLE(native-dtoa,[auto],
+SEE_ARG_ENABLE(native-dtoa,[no],
[dtoa from libc],
- [enable_native_dtoa=yes
- AC_CHECK_FUNCS([strtod dtoa freedtoa],,[enable_native_dtoa=no])
-])
+ [],
+ [enable_native_dtoa=yes],
+ [enable_native_dtoa=no]
+)
AM_CONDITIONAL(NATIVE_DTOA, test x"$enable_native_dtoa" = x"yes")
@@ -333,6 +334,10 @@ AC_CHECK_FUNCS([isnan _isnan],[have_isna
AC_CHECK_FUNCS([finite _finite isfinite],[have_finite=yes])
AC_CHECK_FUNCS([copysign _copysign],[have_copysign=yes])
+if test $have_isnan = no; then
+ AC_CHECK_DECLS([isnan],[have_isnan=yes],,[#include <math.h>])
+fi
+
dnl -- when using double isnan/finite must be available
if test $ac_cv_sizeof_float -ne 8; then
test $have_isnan = no && missing_funcs="$missing_funcs isnan";
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