%global somajor 4
%global sominor 0
%global sotiny  0
%global soversion %{somajor}.%{sominor}.%{sotiny}

Name:			compat-libvpx4
Summary:		Compat package with libvpx libraries
Version:		1.6.1
Release:		1%{?dist}
License:		BSD
Group:			System Environment/Libraries
#Source0:		http://downloads.webmproject.org/releases/webm/%{name}-%{version}.tar.bz2
Source0:		https://github.com/webmproject/libvpx/archive/v%{version}.tar.gz
# Thanks to debian.
Source2:		libvpx.ver
URL:			http://www.webmproject.org/code/
%ifarch %{ix86} x86_64
BuildRequires:		yasm
%endif
BuildRequires:		doxygen, php-cli, perl(Getopt::Long)

#Fix CVE-2017-13194
Patch001: 0001-Fix-image-width-alignment.-Enable-ImageSizeSetting-t.patch

# Explicitly conflict with older libvpx packages that ship libraries
# with the same soname as this compat package
Conflicts: libvpx < 1.7.0

%description
Compatibility package with libvpx libraries ABI version 4.

%prep
%setup -q -n libvpx-%{version}
%patch001 -p1 -b .001

%build
%ifarch %{ix86}
%global vpxtarget x86-linux-gcc
%else
%ifarch	x86_64
%global	vpxtarget x86_64-linux-gcc
%else
%ifarch armv7hl
%global vpxtarget armv7-linux-gcc
%else
%global vpxtarget generic-gnu
%endif
%endif
%endif

# History: The configure script used to reject the shared flag on the generic target.
# This meant that we needed to fall back to manual shared lib creation.
# However, the modern configure script permits the shared flag and assumes ELF.
# Additionally, the libvpx.ver would need to be updated to work properly.
# As a result, we disable this universally, but keep it around in case we ever need to support
# something "special".
%if "%{vpxtarget}" == "generic-gnu"
%global generic_target 0
%else
%global	generic_target 0
%endif

%ifarch armv7hl
CROSS=armv7hl-redhat-linux-gnueabi- CHOST=armv7hl-redhat-linux-gnueabi-hardfloat ./configure \
%else
./configure --target=%{vpxtarget} \
%endif
%ifarch %{arm}
--disable-neon --disable-neon_asm \
%endif
--enable-pic --disable-install-srcs \
--enable-vp9-decoder --enable-vp9-encoder \
--enable-experimental --enable-spatial-svc \
--enable-vp9-highbitdepth \
%if ! %{generic_target}
--enable-shared \
%endif
--prefix=%{_prefix} --libdir=%{_libdir} --size-limit=16384x16384

# Hack our optflags in.
sed -i "s|-O3|%{optflags}|g" libs-%{vpxtarget}.mk
sed -i "s|-O3|%{optflags}|g" examples-%{vpxtarget}.mk
sed -i "s|-O3|%{optflags}|g" docs-%{vpxtarget}.mk

%ifarch armv7hl
#hackety hack hack
sed -i "s|AR=armv7hl-redhat-linux-gnueabi-ar|AR=ar|g" libs-%{vpxtarget}.mk
sed -i "s|AR=armv7hl-redhat-linux-gnueabi-ar|AR=ar|g" examples-%{vpxtarget}.mk
sed -i "s|AR=armv7hl-redhat-linux-gnueabi-ar|AR=ar|g" docs-%{vpxtarget}.mk

sed -i "s|AS=armv7hl-redhat-linux-gnueabi-as|AS=as|g" libs-%{vpxtarget}.mk
sed -i "s|AS=armv7hl-redhat-linux-gnueabi-as|AS=as|g" examples-%{vpxtarget}.mk
sed -i "s|AS=armv7hl-redhat-linux-gnueabi-as|AS=as|g" docs-%{vpxtarget}.mk

sed -i "s|NM=armv7hl-redhat-linux-gnueabi-nm|NM=nm|g" libs-%{vpxtarget}.mk
sed -i "s|NM=armv7hl-redhat-linux-gnueabi-nm|NM=nm|g" examples-%{vpxtarget}.mk
sed -i "s|NM=armv7hl-redhat-linux-gnueabi-nm|NM=nm|g" docs-%{vpxtarget}.mk
%endif

make %{?_smp_mflags} verbose=true

# Manual shared library creation
# We should never need to do this anymore, and if we do, we need to fix the version-script.
%if %{generic_target}
mkdir tmp
cd tmp
ar x ../libvpx_g.a
cd ..
gcc -fPIC -shared -pthread -lm -Wl,--no-undefined -Wl,-soname,libvpx.so.%{somajor} -Wl,--version-script,%{SOURCE2} -Wl,-z,noexecstack -o libvpx.so.%{soversion} tmp/*.o
rm -rf tmp
%endif

# Temporarily dance the static libs out of the way
# mv libvpx.a libNOTvpx.a
# mv libvpx_g.a libNOTvpx_g.a

# We need to do this so the examples can link against it.
# ln -sf libvpx.so.%{soversion} libvpx.so

# make %{?_smp_mflags} verbose=true target=examples CONFIG_SHARED=1
# make %{?_smp_mflags} verbose=true target=docs

# Put them back so the install doesn't fail
# mv libNOTvpx.a libvpx.a
# mv libNOTvpx_g.a libvpx_g.a

%install
make DIST_DIR=%{buildroot}%{_prefix} dist

# Simpler to label the dir as %%doc.
if [ -d %{buildroot}/usr/docs ]; then
   mv %{buildroot}/usr/docs doc/
fi

# Again, we should never need to do this anymore.
%if %{generic_target}
install -p libvpx.so.%{soversion} %{buildroot}%{_libdir}
pushd %{buildroot}%{_libdir}
ln -sf libvpx.so.%{soversion} libvpx.so
ln -sf libvpx.so.%{soversion} libvpx.so.%{somajor}
ln -sf libvpx.so.%{soversion} libvpx.so.%{somajor}.%{sominor}
popd
%endif

pushd %{buildroot}
# Stuff we don't need.
rm -rf usr/build/ usr/md5sums.txt usr/lib*/*.a usr/CHANGELOG usr/README
# No, bad google. No treat.
mv usr/bin/examples/* usr/bin/
rm -rf usr/bin/examples

# Remove files that aren't needed for the compat package
rm -rf %{buildroot}%{_bindir}
rm -rf %{buildroot}%{_includedir}
rm -rf %{buildroot}%{_libdir}/*.so
rm -rf %{buildroot}%{_libdir}/pkgconfig/

%files
%license LICENSE
%{_libdir}/libvpx.so.*

%changelog
* Wed Feb 07 2018 Pete Walter <pwalter@fedoraproject.org> - 1.6.1-1
- Initial packaging