[svn-r8427] Purpose:

    Bug fix (sorta)

Description:
    Add hack to allow the MS Visual Studio 6 compiler to build the library.
It cannot cast unsigned long long values to float or double values.  So, add
another configuration macro to disable this conversion in the library.  Just
the "hardware" conversion is disabled, so the library will still correctly
convert unsigned long long to float and double values, it will just happen
more slowly with the "software" conversion routine.

Platforms tested:
    FreeBSD 4.9 (sleipnir) with "Windows" setting faked
    inappropriate for h5committest

1 files changed, 22 insertions, 0 deletions

diff --git a/configure b/configure
index b2efb89..b0d937a 100755
--- a/configure
+++ b/configure
@@ -33285,6 +33285,28 @@ else
 echo "${ECHO_T}no" >&6
 fi
 
+echo "$as_me:$LINENO: checking if compiling unsigned long long to floating-point typecasts work" >&5
+echo $ECHO_N "checking if compiling unsigned long long to floating-point typecasts work... $ECHO_C" >&6
+if test "${hdf5_cv_ullong_to_fp_cast_works+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  hdf5_cv_ullong_to_fp_cast_works=yes
+fi
+
+
+if test ${hdf5_cv_ullong_to_fp_cast_works} = "yes"; then
+
+cat >>confdefs.h <<\_ACEOF
+#define ULLONG_TO_FP_CAST_WORKS 1
+_ACEOF
+
+  echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+else
+  echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+fi
+
 
 H5_VERSION="`cut -d' ' -f3 $srcdir/README.txt | head -1`"