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-rw-r--r--configure.in19
1 files changed, 18 insertions, 1 deletions
diff --git a/configure.in b/configure.in
index c2e9ef8..df912a1 100644
--- a/configure.in
+++ b/configure.in
@@ -1647,7 +1647,7 @@ AC_MSG_RESULT([no]))
dnl ----------------------------------------------------------------------
dnl Check for functions.
dnl
-AC_CHECK_FUNCS(fork gethostname getpwuid getrusage)
+AC_CHECK_FUNCS(fork frexpf frexpl gethostname getpwuid getrusage)
AC_CHECK_FUNCS(BSDgettimeofday longjmp setsysinfo sigaction)
AC_CHECK_FUNCS(signal snprintf vsnprintf strdup system waitpid)
@@ -2364,6 +2364,23 @@ if test 1 = 2; then
fi
dnl ----------------------------------------------------------------------
+dnl Set the flag to indicate that the machine can handle converting
+dnl denormalized floating-point values.
+dnl (This flag should be set for all machines, except for the Crays, where
+dnl the cache value is set in it's config file)
+dnl
+AC_MSG_CHECKING([if converting denormalized floating-point values is possible])
+AC_CACHE_VAL([hdf5_cv_convert_denormal_float], [hdf5_cv_convert_denormal_float=yes])
+
+if test ${hdf5_cv_convert_denormal_float} = "yes"; then
+ AC_DEFINE([CONVERT_DENORMAL_FLOAT], [1],
+ [Define if your system can handle converting denormalized floating-point values.])
+ AC_MSG_RESULT([yes])
+else
+ AC_MSG_RESULT([no])
+fi
+
+dnl ----------------------------------------------------------------------
dnl Set some variables for general configuration information to be saved
dnl and installed with the libraries.
dnl