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| author | Scot Breitenfeld <brtnfld@hdfgroup.org> | 2015-06-17 16:47:17 (GMT) |
|---|---|---|
| committer | Scot Breitenfeld <brtnfld@hdfgroup.org> | 2015-06-17 16:47:17 (GMT) |
| commit | 3bf582bae9fa8f7d35ba88280cfb8d9dff0abe5a (patch) | |
| tree | 03f5e6427f5801f5b72ca79cd1582f798f08b80a /configure.ac | |
| parent | f51fcf3ffa96b31b3d94434aec6a20ed0432975d (diff) | |
| download | hdf5-3bf582bae9fa8f7d35ba88280cfb8d9dff0abe5a.zip hdf5-3bf582bae9fa8f7d35ba88280cfb8d9dff0abe5a.tar.gz hdf5-3bf582bae9fa8f7d35ba88280cfb8d9dff0abe5a.tar.bz2 | |
[svn-r27226] restricted __float128 to gnu compilers
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/configure.ac b/configure.ac index 3842734..0279d3c 100644 --- a/configure.ac +++ b/configure.ac @@ -366,17 +366,26 @@ HAVE_FLOAT128=0 HAVE_QUADMATH=0 AC_CHECK_HEADERS([quadmath.h], [HAVE_QUADMATH=1], []) PAC_LDBL_DIG -if test "$ac_cv_sizeof___float128" != 0; then + +## __float seems to work for __float128, but it should be _Quad type instead +if test "$ac_cv_sizeof___float128" != 0 && test "$cc_vendor" = "gcc"; then ## Check if __float128 and c_long_double are the same size and precision - if test "$ac_cv_sizeof___float128" = "$ac_cv_sizeof_long_double" && test "$LDBL_DIG" = "$FLT128_DIG"; then - AC_DEFINE([HAVE_FLOAT128], [0], [Determine if __float128 is available]) - PAC_C_MAX_REAL_PRECISION=$LDBL_DIG - else - AC_DEFINE([HAVE_FLOAT128], [1], [Determine if __float128 is available]) - PAC_C_MAX_REAL_PRECISION=$FLT128_DIG + dnl if test "$ac_cv_sizeof___float128" = "$ac_cv_sizeof_long_double"; then + dnl if test "$LDBL_DIG" = "$FLT128_DIG"; then + dnl AC_DEFINE([HAVE_FLOAT128], [0], [Determine if __float128 is available]) + dnl PAC_C_MAX_REAL_PRECISION=$LDBL_DIG + dnl else + dnl if test "$FLT128_DIG" > "$LDBL_DIG";then + dnl choose the larger precision + AC_DEFINE([HAVE_FLOAT128], [1], [Determine if __float128 is available]) + PAC_C_MAX_REAL_PRECISION=$FLT128_DIG + dnl else + dnl AC_DEFINE([HAVE_FLOAT128], [0], [Determine if __float128 is available]) + dnl PAC_C_MAX_REAL_PRECISION=$LDBL_DIG + dnl fi dnl AC_MSG_CHECKING([for quadmath.h]) dnl AC_MSG_RESULT([$HAVE_QUADMATH]) - fi + dnl fi else PAC_C_MAX_REAL_PRECISION=$LDBL_DIG fi |