modify spec

pngcrush.spec

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+%global         _hardened_build 1
+Summary:             Optimizer for PNG (Portable Network Graphics) files
+Name:                pngcrush
+Version:             1.8.13
+Release:             1
+License:             zlib
+URL:                 http://pmt.sourceforge.net/%{name}/
+Source0:             https://master.dl.sourceforge.net/project/pmt/pngcrunloadh/1.8.13/pngcrush-1.8.13-nolib.tar.xz
+BuildRequires:       docbook-utils gcc libpng-devel pkgconfig zlib-devel
+%description
+pngcrush is a commandline optimizer for PNG (Portable Network Graphics) files.
+Its main purpose is to reduce the size of the PNG IDAT datastream by trying
+various compression levels and PNG filter methods. It also can be used to
+remove unwanted ancillary chunks, or to add certain chunks including gAMA,
+tRNS, iCCP, and textual chunks.
+
+%prep
+%setup -q -n %{name}-%{version}-nolib
+
+%build
+rm -f z*.h crc32.h deflate.h inf*.h trees.h png*.h # force using system headers
+pngflags=$(pkg-config --cflags --libs libpng)
+gcc %{optflags} $pngflags -lz -o %{name} %{name}.c
+
+%install
+%{__install} -D -m0755 %{name} %{buildroot}%{_bindir}/%{name}
+
+%files
+%doc ChangeLog.html
+%license LICENSE
+%{_bindir}/%{name}
+
+%changelog
+* Wed Oct 28 2020 jialei <jialei17@huawei.com> - 1.8.13-1
+- package init

pngcrush.yaml

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+version_control: git
+src_repo: https://git.code.sf.net/p/pmt/code
+tag_prefix: ""
+separator: "."