!2 init package

From: @yangchen_guang 
Reviewed-by: @small_leek 
Signed-off-by: @small_leek

lv2.spec

@@ -0,0 +1,51 @@
+Name:           lv2
+Version:        1.18.2
+Release:        1
+Summary:        Audio Plugin Standard
+License:        ISC
+URL:            http://lv2plug.in
+Source:         http://lv2plug.in/spec/lv2-%{version}.tar.bz2
+
+BuildRequires:  libsndfile-devel cairo-devel
+BuildRequires:  gcc gcc-c++ python3-devel
+
+%description
+LV2 is a standard for plugins
+
+%package        devel
+Summary:        API for the LV2 Audio Plugin Standard
+Requires:       %{name} = %{version}-%{release}
+
+%description    devel
+lv2-devel contains the lv2.h header file and headers for all of the
+LV2 specification extensions and bundles.
+
+%prep
+%autosetup -n %{name}-%{version} -p1
+# use python3
+sed -i '1s|^#!.*|#!%{__python3}|' lv2specgen/lv2specgen.py
+
+%build
+%set_build_flags
+%{__python3} waf configure -vv --prefix=%{_prefix} --libdir=%{_libdir} \
+  --lv2dir=%{_libdir}/lv2 --no-check-links
+%{__python3} waf -vv
+
+%install
+DESTDIR=%{buildroot} %{__python3} waf -vv install
+
+%files
+%{_libdir}/%{name}/
+
+%files devel
+%{_bindir}/lv2specgen.py
+%{_bindir}/lv2_validate
+%{_datadir}/lv2specgen
+%{_includedir}/%{name}.h
+%{_includedir}/%{name}/
+%{_libdir}/%{name}/*/*.[hc]
+%{_libdir}/pkgconfig/%{name}.pc
+
+%changelog
+* Tue Mar 22 2022 yangchenguang <yangchenguang@uniontech.com> - 1.18.2-1 
+- Init package