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-rwxr-xr-xconfigure68
1 files changed, 68 insertions, 0 deletions
diff --git a/configure b/configure
index 541d1da..0b84338 100755
--- a/configure
+++ b/configure
@@ -27058,6 +27058,74 @@ else
$as_echo "no" >&6; }
fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if accurately converting unsigned long to float values" >&5
+$as_echo_n "checking if accurately converting unsigned long to float values... " >&6; }
+
+if test "${hdf5_ulong_to_float_accurate+set}" = set; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error "cannot run test program while cross compiling
+See \`config.log' for more details." "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+ int main(void)
+ {
+ int ret = 0;
+ unsigned long l1;
+ unsigned long l2;
+ unsigned long l3;
+ float f1;
+ float f2;
+ float f3;
+
+
+ if(sizeof(unsigned long)==8) {
+ l1 = 0xffffffffffffffffUL;
+ l2 = 0xffffffffffff0000UL;
+ l3 = 0xf000000000000000UL;
+
+ f1 = (float)l1;
+ f2 = (float)l2;
+ f3 = (float)l3;
+
+ if((f1 < 0) || (f2 < 0) || (f3 < 0))
+ ret = 1;
+ }
+
+done:
+ exit(ret);
+ }
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ hdf5_ulong_to_float_accurate=yes
+else
+ hdf5_ulong_to_float_accurate=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+
+
+if test ${hdf5_ulong_to_float_accurate} = "yes"; then
+
+$as_echo "#define ULONG_TO_FLOAT_ACCURATE 1" >>confdefs.h
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if accurately converting unsigned long long to floating-point values" >&5
$as_echo_n "checking if accurately converting unsigned long long to floating-point values... " >&6; }