diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 47 |
1 files changed, 0 insertions, 47 deletions
diff --git a/configure.ac b/configure.ac index 8a3fe95..090d900 100644 --- a/configure.ac +++ b/configure.ac @@ -2558,53 +2558,6 @@ case "`uname`" in esac ## ----------------------------------------------------------------------- -## Set flag to indicate that the machine can do conversion from -## long double to integers regardless of accuracy. This flag should be -## set "yes" for all machines except HP-UX 11.00. For HP-UX 11.00, the -## compiler has 'floating exception' when converting 'long double' to all -## integers except 'unsigned long long'. Other HP-UX systems are unknown -## yet. (1/8/05 - SLU) - -AC_MSG_CHECKING([if converting from long double to integers works]) - -if test ${ac_cv_sizeof_long_double} = 0; then - hdf5_cv_ldouble_to_integer_works=${hdf5_cv_ldouble_to_integer_works=no} -else - AC_CACHE_VAL([hdf5_cv_ldouble_to_integer_works], - [AC_TRY_RUN([ - int main(void) - { - void *align; - long double ld= 9701917572145405952.00L; - unsigned char v1; - short v2; - unsigned int v3; - int ret = 0; - - align = (void*)malloc(sizeof(long double)); - memcpy(align, &ld, sizeof(long double)); - - /*For HU-UX11.00, there's floating exception(core dump) when doing some of casting - *from 'long double' to integers*/ - v1=(unsigned char)(*((long double*)align)); - v2=(short)(*((long double*)align)); - v3=(unsigned int)(*((long double*)align)); - - done: - exit(ret); - } - ], [hdf5_cv_ldouble_to_integer_works=yes], [hdf5_cv_ldouble_to_integer_works=no],)]) -fi - -if test ${hdf5_cv_ldouble_to_integer_works} = "yes"; then - AC_DEFINE([LDOUBLE_TO_INTEGER_WORKS], [1], - [Define if your system can convert from long double to integer values.]) - AC_MSG_RESULT([yes]) -else - AC_MSG_RESULT([no]) -fi - -## ----------------------------------------------------------------------- ## Set flag to indicate that the machine can handle conversion from ## integers to long double. (This flag should be set "yes" for all ## machines except all SGIs, where some conversions are incorrect) |