[svn-r27743] Merge of r26625 from the trunk

Remove the LLONG_TO_LDOUBLE_CORRECT macro/define, it's working around
bugs in very old SGI/FreeBSD/Windows compilers.

Tested on: jam (minor change that has baked in the trunk for months)

1 files changed, 1 insertions, 92 deletions

diff --git a/configure b/configure
index 4a32637..e8851f3 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Id: configure.ac 27741 2015-09-10 10:38:47Z derobins .
+# From configure.ac Id: configure.ac 27742 2015-09-10 10:59:56Z derobins .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.69 for HDF5 1.8.16-snap16.
 #
@@ -27470,97 +27470,6 @@ $as_echo "no" >&6; }
 fi
 
 ## ----------------------------------------------------------------------
-## Set the flag to indicate that the machine can accurately convert
-## '(unsigned) long long' to 'long double' values.  (This flag should be set for
-## all machines, except for Mac OS 10.4, when the bit sequences are 003fff...,
-## 007fff..., 00ffff..., 01ffff..., ..., 7fffff..., the converted values are twice
-## as big as they should be.
-##
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if correctly converting (unsigned) long long to long double values" >&5
-$as_echo_n "checking if correctly converting (unsigned) long long to long double values... " >&6; }
-
-if test ${ac_cv_sizeof_long_double} = 0; then
-   hdf5_cv_llong_to_ldouble_correct=${hdf5_cv_llong_to_ldouble_correct=no}
-else
-   if ${hdf5_cv_llong_to_ldouble_correct+:} false; 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.$ac_ext
-/* end confdefs.h.  */
-
-        int main(void)
-        {
-            long double         ld;
-            long long           ll;
-            unsigned long long  ull;
-            unsigned char       s[16];
-            int                 flag=0, ret=0;
-
-            /*Determine if long double has 16 byte in size, 11 bit exponent, and
-             *the bias is 0x3ff */
-            if(sizeof(long double) == 16) {
-                ld = 1.0L;
-                memcpy(s, &ld, 16);
-                if(s[0]==0x3f && s[1]==0xf0 && s[2]==0x00 && s[3]==0x00 &&
-                    s[4]==0x00 && s[5]==0x00 && s[6]==0x00 && s[7]==0x00)
-                    flag = 1;
-            }
-
-            if(flag==1 && sizeof(long long)==8) {
-                ll = 0x01ffffffffffffffLL;
-                ld = (long double)ll;
-                memcpy(s, &ld, 16);
-                /*Check if the bit sequence is as supposed to be*/
-                if(s[0]!=0x43 || s[1]!=0x7f || s[2]!=0xff || s[3]!=0xff ||
-                    s[4]!=0xff || s[5]!=0xff || s[6]!=0xff || s[7]!=0xff ||
-                    s[8]!=0xf0 || s[9]!=0x00 || s[10]!=0x00 || s[11]!=0x00)
-                    ret = 1;
-            }
-            if(flag==1 && sizeof(unsigned long long)==8) {
-                ull = 0x01ffffffffffffffULL;
-                ld = (long double)ull;
-                memcpy(s, &ld, 16);
-                if(s[0]!=0x43 || s[1]!=0x7f || s[2]!=0xff || s[3]!=0xff ||
-                    s[4]!=0xff || s[5]!=0xff || s[6]!=0xff || s[7]!=0xff ||
-                    s[8]!=0xf0 || s[9]!=0x00 || s[10]!=0x00 || s[11]!=0x00)
-                    ret = 1;
-            }
-    done:
-            exit(ret);
-        }
-
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  hdf5_cv_llong_to_ldouble_correct=yes
-else
-  hdf5_cv_llong_to_ldouble_correct=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
-
-fi
-
-if test ${hdf5_cv_llong_to_ldouble_correct} = "yes"; then
-
-$as_echo "#define LLONG_TO_LDOUBLE_CORRECT 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
-
-## ----------------------------------------------------------------------
 ## Set the flag to indicate that the machine generates bad code
 ## for the H5VM_log2_gen() routine in src/H5VMprivate.h
 ## (This flag should be set to no for all machines, except for SGI IRIX64,