On 13/01/16 16:26 +0000, Jonathan Wakely wrote:
On 08/01/16 13:59 +0000, Jonathan Wakely wrote:
I'm only checking for those functions for *-*-*gnu* targets, as I
don't know of any other targets where it's an issue. Solaris and
the BSDs don't define those functions. If it affects other targets we
can extend the check to cover them too.
AIX also defines ::isinf and ::isnan, so this extends the configure
check to AIX.
Committed to trunk.
commit 4448720e8e3fabe45e49ee56bc469abe7c4b06e0
Author: Jonathan Wakely <jwak...@redhat.com>
Date: Fri Jan 15 14:07:19 2016 +0000
PR libstdc++/69294 Check for isinf and isnan on AIX
PR libstdc++/69294
* acinclude.m4 (GLIBCXX_CHECK_MATH11_PROTO): Check for obsolete isinf
and isnan on AIX. Quote variables.
* configure: Regenerate.
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index 1e25660..f8dbb95 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -2186,7 +2186,7 @@ AC_DEFUN([GLIBCXX_CHECK_MATH11_PROTO], [
fi
AC_MSG_RESULT([$glibcxx_cv_math11_overload])
;;
- *-*-*gnu*)
+ *-*-*gnu* | *-*-aix*)
# If <math.h> defines the obsolete isinf(double) and isnan(double)
# functions (instead of or as well as the C99 generic macros) then we
# can't define std::isinf(double) and std::isnan(double) in <cmath>
@@ -3445,9 +3445,9 @@ EOF
AC_LANG_RESTORE
# Set atomicity_dir to builtins if all but the long long test above passes.
- if test $glibcxx_cv_atomic_bool = yes \
- && test $glibcxx_cv_atomic_short = yes \
- && test $glibcxx_cv_atomic_int = yes; then
+ if test "$glibcxx_cv_atomic_bool" = yes \
+ && test "$glibcxx_cv_atomic_short" = yes \
+ && test "$glibcxx_cv_atomic_int" = yes; then
AC_DEFINE(_GLIBCXX_ATOMIC_BUILTINS, 1,
[Define if the compiler supports C++11 atomics.])
atomicity_dir=cpu/generic/atomicity_builtins
