GCC supports 128-bit floating point data type on some platforms (including but not limited to x86 and x86-64). This may be useful for tests, which need prefectly accurate reference implementations of certain algorithms. --- configure.ac | 16 ++++++++++++++++ 1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/configure.ac b/configure.ac index 81f068d..529ed0a 100644 --- a/configure.ac +++ b/configure.ac @@ -968,6 +968,22 @@ fi AC_MSG_RESULT($support_for_attribute_constructor) AC_SUBST(TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR) +dnl ===================================== +dnl __float128 + +support_for_float128=no + +AC_MSG_CHECKING(for __float128) +AC_LINK_IFELSE([AC_LANG_SOURCE([[ +__float128 a = 1.0Q, b = 2.0Q; int main (void) { return a + b; } +]])], support_for_float128=yes) + +if test x$support_for_float128 = xyes; then + AC_DEFINE([HAVE_FLOAT128], [], [Whether the tool chain supports __float128]) +fi + +AC_MSG_RESULT($support_for_float128) + dnl ================== dnl libpng -- 1.7.8.6 _______________________________________________ Pixman mailing list Pixman@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/pixman