libc++: std::isinf() returns "int", is supposed to return boolvec_t

Hello.

I try to compile a package of C++ software for FreeBSD with CLANG which
uses clang++. I have to use -stdlib=libc++ -std=c++11.

I receive the following error and after consulting developers of the
code I was informed that libc++ routine "std::isinf()" should return
boolvec_t, but it returns obviously int.

Well, I'm not an expert, I take this for true and I'm inclinded to ask
here whether there is a bug I discover in the code I'm supposed to
compile or whether this is a bug in the FreeBSD's libc++ implementation
used.

The fault is as follows:

[...]

/usr/bin/clang++ -Xclang -ffake-address-space-map -std=c++11
-fno-exceptions -emit-llvm -ffp-contract=off  -stdlib=libc++ -c -target
amd64-portbld-freebsd10.0 -o acosh.cc.bc ../vecmathlib/pocl/acosh.cc
-include ../../../include/x86_64/types.h In file included
from ../vecmathlib/pocl/acosh.cc:3: In file included
from ../vecmathlib/pocl/pocl-compat.h:8: In file included
from ../vecmathlib/pocl/../vecmathlib.h:89: ../vecmathlib/pocl/../vec_sse_double1.h:451:38:
error: conversion from 'int' to 'boolvec_t' (aka 'boolvec<real_t,
size>') is ambiguous boolvec_t isinf() const { return std::isinf(v); }
size>^~~~~~~~~~~~~ ../vecmathlib/pocl/../vec_sse_double1.h:75:5: note:
size>candidate constructor boolvec(bvector_t x): v(x) {}
    ^
../vecmathlib/pocl/../vec_sse_double1.h:76:5: note: candidate
constructor boolvec(bool a): v(a) {}
    ^
../vecmathlib/pocl/../vec_sse_double1.h:461:14: error: conversion from
'int' to 'boolvec_t' (aka 'boolvec<real_t, size>') is ambiguous return
std::isnan(v); ^~~~~~~~~~~~~
../vecmathlib/pocl/../vec_sse_double1.h:75:5: note: candidate
constructor boolvec(bvector_t x): v(x) {}
    ^
../vecmathlib/pocl/../vec_sse_double1.h:76:5: note: candidate
constructor boolvec(bool a): v(a) {}
    ^
In file included from ../vecmathlib/pocl/acos.cc:3:
In file included from ../vecmathlib/pocl/pocl-compat.h:8:
In file included from ../vecmathlib/pocl/../vecmathlib.h:89:
../vecmathlib/pocl/../vec_sse_double1.h:451:38: error: conversion from
'int' to 'boolvec_t' (aka 'boolvec<real_t, size>') is ambiguous
boolvec_t isinf() const { return std::isinf(v); } ^~~~~~~~~~~~~
../vecmathlib/pocl/../vec_sse_double1.h:75:5: note: candidate
constructor boolvec(bvector_t x): v(x) {}
    ^
../vecmathlib/pocl/../vec_sse_double1.h:76:5: note: candidate
constructor boolvec(bool a): v(a) {}
    ^
../vecmathlib/pocl/../vec_sse_double1.h:461:14: error: conversion from
'int' to 'boolvec_t' (aka 'boolvec<real_t, size>') is ambiguous return
std::isnan(v); ^~~~~~~~~~~~~
../vecmathlib/pocl/../vec_sse_double1.h:75:5: note: candidate
constructor boolvec(bvector_t x): v(x) {}
    ^
../vecmathlib/pocl/../vec_sse_double1.h:76:5: note: candidate
constructor boolvec(bool a): v(a) {}


Regards,

Oliver