[svn-r26625] Description:

    Bring r26543 from autotools_rework branch to trunk:

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

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

1 files changed, 0 insertions, 65 deletions

diff --git a/configure.ac b/configure.ac
index 91bad1d..bba80ff 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2701,71 +2701,6 @@ else
 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. 
-##
-AC_MSG_CHECKING([if correctly converting (unsigned) long long to long double values])
-
-if test ${ac_cv_sizeof_long_double} = 0; then
-   hdf5_cv_llong_to_ldouble_correct=${hdf5_cv_llong_to_ldouble_correct=no}
-else
-   AC_CACHE_VAL([hdf5_cv_llong_to_ldouble_correct],
-        [AC_TRY_RUN([
-        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);
-        }
-        ], [hdf5_cv_llong_to_ldouble_correct=yes], [hdf5_cv_llong_to_ldouble_correct=no],)])
-fi
-
-if test ${hdf5_cv_llong_to_ldouble_correct} = "yes"; then
-  AC_DEFINE([LLONG_TO_LDOUBLE_CORRECT], [1],
-            [Define if your system can convert (unsigned) long long to long double values correctly.])
-  AC_MSG_RESULT([yes])
-else
-  AC_MSG_RESULT([no])
-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,