[svn-r26587] Description:

    Bring r26489 from autotools_rework branch to trunk:

    Remove the ULONG_TO_FP_BOTTOM_BIT_ACCURATE macro/define, as it was added
for SGI systems and old Solaris systems, which are no longer supported.

Tested on:
    Linux/32 2.6.18 (jam) w/serial & parallel
    (Daily tested for >1 week)

1 files changed, 0 insertions, 84 deletions

diff --git a/configure.ac b/configure.ac
index 76bfc95..bf74348 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2574,90 +2574,6 @@ case "`uname`" in
     ;;
 esac
 
-
-## ----------------------------------------------------------------------
-## Set the flag to indicate that the machine can accurately convert
-## 'unsigned (long) long' values to 'float' and 'double' values.
-## (This flag should be set for all machines, except for the SGIs) and Solaris
-## 64-bit machines, where the short program below tests if round-up is 
-## correctly handled.
-##
-AC_MSG_CHECKING([if accurately converting unsigned long long to floating-point values])
-
-if test ${host_os_novers} = "solaris2.x"; then
-    AC_CACHE_VAL([hdf5_cv_ulong_to_fp_bottom_bit_accurate],
-    [AC_TRY_RUN([
-    int main(void)
-    {
-        unsigned long l1;
-        unsigned long l2;
-        unsigned long l3;
-        unsigned long l4;
-        unsigned long long ld1;
-        unsigned long long ld2;
-        unsigned long long ld3;
-        unsigned long long ld4;
-        double        d1, d2, d3, d4;
-        unsigned char s[8];
-        int           ret = 0;
-
-        if(sizeof(unsigned long)==8) {
-            l1 = 0xf000000000000b00UL; /*Round-down case*/
-            l2 = 0xf000000000000401UL; /*Round-up case*/
-            l3 = 0xf000000000000400UL; /*Round-down case*/
-            l4 = 0xf000000000000c00UL; /*Round-up case*/
-            
-            d1 = (double)l1;
-            d2 = (double)l2;
-            d3 = (double)l3;
-            d4 = (double)l4;
-        } else if(sizeof(unsigned long long)==8) { 
-            ld1 = 0xf000000000000b00ULL; /*Round-down case*/
-            ld2 = 0xf000000000000401ULL; /*Round-up case*/
-            ld3 = 0xf000000000000400ULL; /*Round-down case*/
-            ld4 = 0xf000000000000c00ULL; /*Round-up case*/
-            
-            d1 = (double)ld1;
-            d2 = (double)ld2;
-            d3 = (double)ld3;
-            d4 = (double)ld4;
-        } else {
-            ret = 1;
-            goto done;
-        }
-        
-        memcpy(s, &d1, 8);
-        if(s[7]!=1)
-            ret = 1;
-
-        memcpy(s, &d2, 8);
-        if(s[7]!=1)
-            ret = 1;
-
-        memcpy(s, &d3, 8);
-        if(s[7]!=0)
-            ret = 1;
-
-        memcpy(s, &d4, 8);
-        if(s[7]!=2)
-            ret = 1;
-
-done:
-        exit(ret);
-    }
-    ], [hdf5_cv_ulong_to_fp_bottom_bit_accurate=yes], [hdf5_cv_ulong_to_fp_bottom_bit_accurate=no],)])
-else
-    AC_CACHE_VAL([hdf5_cv_ulong_to_fp_bottom_bit_accurate], [hdf5_cv_ulong_to_fp_bottom_bit_accurate=yes])
-fi
-
-if test ${hdf5_cv_ulong_to_fp_bottom_bit_accurate} = "yes"; then
-  AC_DEFINE([ULONG_TO_FP_BOTTOM_BIT_ACCURATE], [1],
-            [Define if your system can accurately convert unsigned (long) long values to floating-point values.])
-  AC_MSG_RESULT([yes])
-else
-  AC_MSG_RESULT([no])
-fi
-
 ## ----------------------------------------------------------------------
 ## Set the flag to indicate that the machine can accurately convert
 ## 'float' or 'double' to 'unsigned long long' values.