# If you need to bootstrap this, turn this on.

# Otherwise, you have a loop with libcxxabi

%global bootstrap 0

Name:		libcxx

Version:	4.0.0

Release:	1%{?dist}

Summary:	C++ standard library targeting C++11

License:	MIT or NCSA

URL:		http://libcxx.llvm.org/

Source0:	http://llvm.org/releases/%{version}/libcxx-%{version}.src.tar.xz

BuildRequires:	clang llvm-devel cmake

%if %{bootstrap} < 1

BuildRequires:	libcxxabi-devel

BuildRequires:	python3

%endif

# PPC64 (on EL7) doesn't like this code.

# /builddir/build/BUILD/libcxx-3.8.0.src/include/thread:431:73: error: '(9.223372036854775807e+18 / 1.0e+9)' is not a constant expression

# _LIBCPP_CONSTEXPR duration<long double> _Max = nanoseconds::max();

%if 0%{?rhel}

ExcludeArch:	ppc64 ppc64le

%endif

%description

libc++ is a new implementation of the C++ standard library, targeting C++11.

%package devel

Summary:	Headers and libraries for libcxx devel

Requires:	%{name}%{?_isa} = %{version}-%{release}

%if %{bootstrap} < 1

Requires:	libcxxabi-devel

%endif

%description devel

%{summary}.

%prep

%setup -q -n %{name}-%{version}.src

%build

mkdir _build

cd _build

%ifarch s390 s390x

%if 0%{?fedora} < 26

# clang requires z10 at minimum

# workaround until we change the defaults for Fedora

%global optflags %(echo %{optflags} | sed 's/-march=z9-109 /-march=z10 /')

%endif

%endif

export LDFLAGS="-Wl,--build-id"

# Clang in older releases than f24 can't build this code without crashing.

# So, we use gcc there. But the really old version in RHEL 6 works. Huh.

%cmake .. \

%if 0%{?rhel} == 6

	-DCMAKE_C_COMPILER=/usr/bin/clang \

	-DCMAKE_CXX_COMPILER=/usr/bin/clang++ \

%else

%if 0%{?fedora} >= 24

	-DCMAKE_C_COMPILER=/usr/bin/clang \

	-DCMAKE_CXX_COMPILER=/usr/bin/clang++ \

%else

	-DCMAKE_C_COMPILER=/usr/bin/gcc \

	-DCMAKE_CXX_COMPILER=/usr/bin/g++ \

%endif

%endif

	-DLLVM_CONFIG=%{_bindir}/llvm-config \

%if %{bootstrap} < 1

	-DLIBCXX_CXX_ABI=libcxxabi \

	-DLIBCXX_CXX_ABI_INCLUDE_PATHS=%{_includedir} \

	-DPYTHONINTERP_FOUND=ON \

	-DPYTHON_EXECUTABLE=%{_bindir}/python3 \

	-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=ON \

%endif

%if 0%{?__isa_bits} == 64

	-DLIBCXX_LIBDIR_SUFFIX:STRING=64 \

%endif

	-DCMAKE_BUILD_TYPE=RelWithDebInfo

make %{?_smp_mflags}

%install

cd _build

make install DESTDIR=%{buildroot}

%post -p /sbin/ldconfig

%postun -p /sbin/ldconfig

%files

%license LICENSE.TXT

%doc CREDITS.TXT TODO.TXT

%{_libdir}/libc++.so.*

%files devel

%{_includedir}/c++/

%{_libdir}/libc++.so

%changelog

* Sat Apr 22 2017 Tom Callaway <spot@fedoraproject.org> - 4.0.0-1

- update to 4.0.0

* Wed Mar  8 2017 Tom Callaway <spot@fedoraproject.org> - 3.9.1-1

- update to 3.9.1

* Fri Mar  3 2017 Tom Callaway <spot@fedoraproject.org> - 3.9.0-4

- LIBCXX_ENABLE_ABI_LINKER_SCRIPT=ON

* Wed Mar  1 2017 Tom Callaway <spot@fedoraproject.org> - 3.9.0-3

- disable bootstrap

* Tue Feb 21 2017 Dan Horák <dan[at]danny.cz> - 3.9.0-2

- apply s390(x) workaround only in Fedora < 26

* Mon Feb 20 2017 Tom Callaway <spot@fedoraproject.org> - 3.9.0-1

- update to 3.9.0 (match clang)

* Fri Feb 10 2017 Fedora Release Engineering <releng@fedoraproject.org> - 3.8.1-2

- Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild

* Fri Aug 26 2016 Tom Callaway <spot@fedoraproject.org> - 3.8.1-1

- update to 3.8.1

* Thu Jun 09 2016 Dan Horák <dan[at]danny.cz> - 3.8.0-4

- exclude Power only in EPEL

- default to z10 on s390(x)

* Thu May 19 2016 Tom Callaway <spot@fedoraproject.org> - 3.8.0-3

- use gcc on el7, fedora < 24. use clang on el6 and f24+

  MAGIC.

- bootstrap on

* Tue May 3 2016 Tom Callaway <spot@fedoraproject.org> - 3.8.0-2

- bootstrap off

* Tue May 3 2016 Tom Callaway <spot@fedoraproject.org> - 3.8.0-1

- initial package

- bootstrap on