From 0c7541ee61d9f85094ababe5c0ab885db74555dc Mon Sep 17 00:00:00 2001
From: George Bosilca <bosilca@icl.utk.edu>
Date: Thu, 25 Aug 2011 21:56:05 +0000
Subject: [PATCH] check if __float128 is supported.

This commit was SVN r25082.
---
 configure.ac | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/configure.ac b/configure.ac
index 85c2eb087b..25e136d3cb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -323,6 +323,7 @@ AC_CHECK_TYPES(int128_t)
 AC_CHECK_TYPES(uint128_t)
 AC_CHECK_TYPES(long long)
 
+AC_CHECK_TYPES(__float128)
 AC_CHECK_TYPES(long double)
 # We only need these types if we're building the OMPI project, but
 # OPAL currently doesn't protect for their lack of presence well.
@@ -344,15 +345,17 @@ AC_CHECK_SIZEOF(char)
 AC_CHECK_SIZEOF(short)
 AC_CHECK_SIZEOF(int)
 AC_CHECK_SIZEOF(long)
-if test $ac_cv_type_long_long = yes; then
+if test "$ac_cv_type_long_long" = yes; then
     AC_CHECK_SIZEOF(long long)
 fi
 AC_CHECK_SIZEOF(float)
 AC_CHECK_SIZEOF(double)
-if test $ac_cv_type_long_double = yes; then
+if test "$ac_cv_type_long_double" = yes; then
     AC_CHECK_SIZEOF(long double)
 fi
-
+if test "$ac_cv_type___float128" = yes; then
+    AC_CHECK_SIZEOF(__float128)
+fi
 # We only need these types if we're building the OMPI project, but
 # OPAL currently doesn't protect for their lack of presence well.
 if test "$ac_cv_type_float__Complex" = yes; then
@@ -367,10 +370,10 @@ fi
 
 AC_CHECK_SIZEOF(void *)
 AC_CHECK_SIZEOF(size_t)
-if test $ac_cv_type_ssize_t = yes ; then
+if test "$ac_cv_type_ssize_t" = yes ; then
     AC_CHECK_SIZEOF(ssize_t)
 fi
-if test $ac_cv_type_ptrdiff_t = yes; then
+if test "$ac_cv_type_ptrdiff_t" = yes; then
     AC_CHECK_SIZEOF(ptrdiff_t)
 fi
 AC_CHECK_SIZEOF(wchar_t)
@@ -401,6 +404,10 @@ OMPI_C_GET_ALIGNMENT(double, OPAL_ALIGNMENT_DOUBLE)
 if test "$ac_cv_type_long_double" = yes; then
     OMPI_C_GET_ALIGNMENT(long double, OPAL_ALIGNMENT_LONG_DOUBLE)
 fi
+if test "$ac_cv_type___float128" = yes; then
+    OMPI_C_GET_ALIGNMENT(__float128, OPAL_ALIGNMENT___FLOAT128)
+fi
+
 
 # We only need these types if we're building the OMPI project, but
 # OPAL currently doesn't protect for their lack of presence well.