configure: remove checks for isinf and isnan as those are not used anyway

As pointed out by Roumen Petrov those check were wrong (isinf and isnan are
macros) and they are not used in the code either. Thus remove the checks.

diff --git a/configure.in b/configure.in
index ba0d37b..d63a23b 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -230,12 +230,6 @@ dnl
 AC_CHECK_HEADERS(ieeefp.h nan.h math.h fp_class.h float.h ansidecl.h)
 AC_CHECK_HEADERS(sys/timeb.h time.h sys/stat.h sys/select.h stdarg.h)
 AC_CHECK_FUNCS(stat _stat)
-AC_CHECK_FUNC(isnan, , AC_CHECK_LIB(m, isnan,
-  [M_LIBS="-lm"; AC_DEFINE([HAVE_ISNAN],[], [Define if isnan is there])]))
-
-AC_CHECK_FUNC(isinf, , AC_CHECK_LIB(m, isinf,
-  [M_LIBS="-lm"; AC_DEFINE([HAVE_ISINF],[], [Define if isinf is there])]))
-
 AC_CHECK_FUNC(pow, , AC_CHECK_LIB(m, pow,
   [M_LIBS="-lm"; AC_DEFINE([HAVE_POW],[], [Define if pow is there])]))