[svn-r26598] Description:

    Bring r26501 from the autotools_rework branch to the trunk:

    Remove ULLONG_TO_LDOUBLE_PRECISION macro/define, as it's targeting bugs
in the FreeBSD and Cygwin compilers.

Tested on:
    Linux/32 2.6.18 (jam) w/serial & parallel
    (Daily tested on branch for 2+ days)

1 files changed, 0 insertions, 124 deletions

diff --git a/configure b/configure
index 4d36297..28461c8 100755
--- a/configure
+++ b/configure
@@ -28151,130 +28151,6 @@ $as_echo "no" >&6; }
 esac
 
 ## ----------------------------------------------------------------------
-## Set the flag to indicate that the machine can convert from
-## 'unsigned long long' to 'long double' without precision loss.
-## (This flag should be set for all machines, except for FreeBSD(sleipnir)
-## where the last 2 bytes of mantissa are lost when compiler tries to do
-## the conversion, and Cygwin where compiler doesn't do rounding correctly.)
-##
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if converting unsigned long long to long double with precision" >&5
-$as_echo_n "checking if converting unsigned long long to long double with precision... " >&6; }
-
-if test ${ac_cv_sizeof_long_double} = 0; then
-   hdf5_cv_ullong_to_ldouble_precision=${hdf5_cv_ullong_to_ldouble_precision=no}
-else
-   if ${hdf5_cv_ullong_to_ldouble_precision+:} 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.  */
-
-        #include <stdlib.h>
-        #include <string.h>
-
-        int main(void)
-        {
-            /* General variables */
-            int endian;
-            int tst_value = 1;
-            int ret = 0;
-
-            /* For FreeBSD */
-            unsigned long long l = 0xa601e80bda85fcefULL;
-            long double ld;
-            unsigned char *c1, *c2;
-            size_t size;
-
-            /* For Cygwin */
-            unsigned long long l_cyg = 0xfffffffffffffff0ULL;
-            long double ld_cyg;
-            unsigned char *c2_cyg;
-            size_t size_cyg;
-
-
-            /* Determine this system's endianess */
-            c1 = (unsigned char*)calloc(1, sizeof(int));
-            memcpy((void*)c1, &tst_value, sizeof(int));
-            if(c1[0]==1)
-                endian = 0;  /* little endian */
-            else
-                endian = 1;  /* big endian */
-
-            /* For FreeBSD */
-            size = sizeof(long double);
-            memset(&ld, 0, size);
-            ld = (long double)l;
-
-            c2 = (unsigned char*)calloc(1, size);
-            memcpy((void*)c2, &ld, size);
-
-            /* Test if the last 2 bytes of mantissa are lost.  Mainly for FreeBSD on Intel
-             * architecture(sleipnir) where it happens. */
-            /*if(endian==0 && c2[0]==0 && c2[1]==0)*/ /*little endian*/
-            if(endian==0 && c2[0]==0) { /*little endian*/
-                ret = 1;
-                goto done;
-            }
-
-            /* For Cygwin */
-            size_cyg = sizeof(long double);
-            memset(&ld_cyg, 0, size);
-            ld_cyg = (long double)l_cyg;
-
-            c2_cyg = (unsigned char*)calloc(1, size_cyg);
-            memcpy((void*)c2_cyg, &ld_cyg, size_cyg);
-
-            /* Test if the last 4 bytes(roughly) of mantissa are rounded up.  Mainly for Cygwin
-             * where the values like 0xffffffffffffffff,  0xfffffffffffffffe, ...,
-             * 0xfffffffffffff000 ... are rounded up as 0x0000403f8000000000000000
-             * instead of 0x0000403effffffffffffffff, 0x0000403efffffffffffffffe, ...,
-             * 0x0000403efffffffffffff000 ...
-             */
-            if(endian==0 && c2_cyg[0]==0 && c2_cyg[1]==0 && c2_cyg[2]==0 && c2_cyg[3]==0)
-                ret = 1;
-
-    done:
-            if(c1)
-                free(c1);
-            if(c2)
-                free(c2);
-            if(c2_cyg)
-                free(c2_cyg);
-            exit(ret);
-        }
-
-_ACEOF
-if ac_fn_c_try_run "$LINENO"; then :
-  hdf5_cv_ullong_to_ldouble_precision=yes
-else
-  hdf5_cv_ullong_to_ldouble_precision=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 ${hdf5_cv_ullong_to_ldouble_precision} = "yes"; then
-
-$as_echo "#define ULLONG_TO_LDOUBLE_PRECISION 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 can handle overflow converting
 ## all floating-point to all integer types.
 ## (This flag should be set for all machines, except for Cray X1 where