Fix build on ppc64le

[skip changelog]

.gitignore

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+*.tar.gz

README.md

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+# vapoursynth
+
+The vapoursynth package.

dead.package

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-epel8-playground decommissioned : https://pagure.io/epel/issue/136

sources

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+SHA512 (vapoursynth-R79.tar.gz) = 8e28a9ff72e5f0c891deeffd0ac0d38a654519910b2227414b8750c74a6198a6811d2271bd447b085a86b82665d38a5fe4fceb55b7537a13d72b2c87deba86fd

vapoursynth-float16-native-check.patch

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+--- vapoursynth-R79/src/core/float16_helper.h	2026-08-07 10:48:01.000000000 +0200
++++ vapoursynth-R79/src/core/float16_helper.h	2026-08-10 11:44:16.851849594 +0200
+@@ -31,7 +31,10 @@
+ // Without hardware support the compiler emits __truncsfhf2 / __extendhfsf2
+ // soft-float builtins, which are not linked under clang-cl + lld-link -- so
+ // there we fall back to explicit bit manipulation instead.
+-#if (defined(__clang__) || defined(__GNUC__)) && (defined(__F16C__) || (!defined(__x86_64__) && !defined(__i386__)))
++// Not every non-x86 target has the type at all: PowerPC has no _Float16, and
++// the compiler rejects it outright. __FLT16_MANT_DIG__ is predefined only
++// where _Float16 is actually available, so test for that as well.
++#if (defined(__clang__) || defined(__GNUC__)) && defined(__FLT16_MANT_DIG__) && (defined(__F16C__) || (!defined(__x86_64__) && !defined(__i386__)))
+ #  define VS_HAVE_NATIVE_FLOAT16 1
+ #else
+ #  define VS_HAVE_NATIVE_FLOAT16 0

vapoursynth-vsscript-soversion.patch

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+--- vapoursynth-R79/meson.build	2026-08-07 10:48:01.000000000 +0200
++++ vapoursynth-R79/meson.build	2026-08-10 10:52:07.764950878 +0200
+@@ -267,6 +267,7 @@ libvsscript = library('vsscript',
+     include_directories: incdir,
+     install: true,
+     install_dir: install_dir,
++    soversion: '0',
+ )
+ 
+ vsscript_dep = declare_dependency(

vapoursynth.spec

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+Name:       vapoursynth
+Version:    79
+Release:    %autorelease
+Summary:    Video processing framework with simplicity in mind
+License:    LGPL-2.1-only
+URL:        http://www.vapoursynth.com
+
+Source0:    https://github.com/%{name}/%{name}/archive/R%{version}/%{name}-R%{version}.tar.gz
+# Restore soversion that was dropped when libvapoursynth-script was renamed to libvsscript.
+Patch0:     %{name}-vsscript-soversion.patch
+# Check for _Float16 instead of assuming that everything not x86 provides it.
+Patch1:     %{name}-float16-native-check.patch
+
+BuildRequires:  gcc-c++
+BuildRequires:  meson
+BuildRequires:  ninja-build
+BuildRequires:  pkgconfig(zimg)
+BuildRequires:  python3-devel
+BuildRequires:  python3-pytest
+
+# Since R79 upstream installs the whole runtime -- the core library, the filter
+# plugins, vspipe, the headers and the pkg-config file -- inside the Python
+# package directory, and VSCore locates libvapoursynthfilters and the
+# third-party plugin directory relative to libvapoursynth.so via dladdr().
+# The libraries, vspipe and the plugin directory therefore have to stay there;
+# see %%install for the FHS entry points layered on top.
+%global vsdir %{python3_sitearch}/%{name}
+
+%description
+VapourSynth is an application for video manipulation. Or a plugin. Or a library.
+It’s hard to tell because it has a core library written in C++ and a Python
+module to allow video scripts to be created.
+
+%package        libs
+Summary:        VapourSynth's core library with a C++ API
+Obsoletes:      lib%{name} < %{version}-%{release}
+Provides:       lib%{name} == %{version}-%{release}
+Obsoletes:      %{name}-plugins < %{version}-%{release}
+Provides:       %{name}-plugins == %{version}-%{release}
+
+%description    libs
+VapourSynth's core library with a C++ API.
+
+%package -n     python3-%{name}
+Summary:        Python interface for VapourSynth
+Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
+
+%description -n python3-%{name}
+Python interface for VapourSynth/VSSCript.
+
+%package        devel
+Summary:        Development files for %{name}
+Requires:       %{name}-libs%{?_isa} = %{version}-%{release}
+
+%description    devel
+Development files for %{name}.
+
+%package        tools
+Summary:        Extra tools for VapourSynth
+Requires:       python3-vapoursynth%{?_isa} = %{version}-%{release}
+
+%description    tools
+This package contains the vspipe tool for interfacing with VapourSynth.
+
+%prep
+%autosetup -p1 -n %{name}-R%{version}
+
+%generate_buildrequires
+%pyproject_buildrequires -R
+
+%build
+# CPython 3.15 gained a platform specific stable ABI suffix
+# (.abi3-x86_64-linux-gnu.so) which meson-python 0.20 does not recognise as
+# abi3, so it refuses to build the wheel. Nothing is gained from the limited
+# API in a distribution build against a single Python version, so turn it off.
+%pyproject_wheel -C setup-args=-Dpython.allow_limited_api=false
+
+%install
+%pyproject_install
+%pyproject_save_files -l %{name}
+
+# Let RPM pick up docs in the files section.
+rm -fr %{buildroot}%{_docdir}/%{name}
+
+# Third-party plugins are auto-loaded from next to the core library.
+mkdir -p %{buildroot}%{vsdir}/plugins
+
+# Headers belong in the usual place.
+mkdir -p %{buildroot}%{_includedir}/%{name}
+mv %{buildroot}%{vsdir}/include/*.h %{buildroot}%{_includedir}/%{name}/
+rmdir %{buildroot}%{vsdir}/include
+
+# Upstream's vapoursynth.pc resolves everything relative to ${pcfiledir}, which
+# no longer works once the file sits in %%{_libdir}/pkgconfig, and it ships no
+# Libs: at all. Write it out instead.
+rm -fr %{buildroot}%{vsdir}/pkgconfig
+mkdir -p %{buildroot}%{_libdir}/pkgconfig
+cat > %{buildroot}%{_libdir}/pkgconfig/%{name}.pc <<EOF
+prefix=%{_prefix}
+libdir=%{_libdir}
+includedir=%{_includedir}/%{name}
+
+Name: vapoursynth
+Description: A frameserver for the 21st century
+Version: %{version}
+Cflags: -I\${includedir}
+Libs: -L\${libdir} -lvapoursynth
+EOF
+
+# Make the libraries linkable and resolvable the normal way.
+mkdir -p %{buildroot}%{_libdir}
+for lib in $(cd %{buildroot}%{vsdir} && ls libvapoursynth.so.* libvsscript.so.*); do
+    ln -s %{vsdir}/${lib} %{buildroot}%{_libdir}/${lib}
+    ln -s ${lib} %{buildroot}%{_libdir}/${lib%%.so.*}.so
+done
+
+# The core library, its filter plugins and vspipe live inside the Python
+# package directory but are packaged in the -libs and -tools subpackages.
+sed -i -e '\#/%{name}/lib.*\.so#d' \
+       -e '\#/%{name}/vspipe$#d' \
+       -e '\#/%{name}/include#d' \
+       -e '\#/%{name}/pkgconfig#d' \
+       -e '\#^%%dir %{vsdir}$#d' \
+       %{pyproject_files}
+
+%check
+%pytest
+
+%files libs
+%doc ChangeLog
+%license COPYING.LESSER
+%dir %{vsdir}
+%dir %{vsdir}/plugins
+%{vsdir}/lib%{name}.so.*
+%{vsdir}/lib%{name}filters*.so
+%{vsdir}/libvsscript.so.*
+%{_libdir}/lib%{name}.so.*
+%{_libdir}/libvsscript.so.*
+
+%files devel
+%{_includedir}/%{name}/
+%{_libdir}/lib%{name}.so
+%{_libdir}/libvsscript.so
+%{_libdir}/pkgconfig/%{name}.pc
+
+%files tools
+%{_bindir}/%{name}
+%{_bindir}/vspipe
+%{vsdir}/vspipe
+
+%files -n python3-%{name} -f %{pyproject_files}
+
+%changelog
+%autochangelog