--- /dev/null
+--- OpenCOLLADA-1.6.68/CMakeLists.txt.orig 2018-11-26 23:43:10.000000000 +0100
++++ OpenCOLLADA-1.6.68/CMakeLists.txt 2023-04-01 21:00:52.307371195 +0200
+@@ -274,7 +274,6 @@ add_subdirectory(common/libftoa)
+ add_subdirectory(${EXTERNAL_LIBRARIES}/UTF)\r
+ add_subdirectory(common/libBuffer)\r
+ add_subdirectory(${EXTERNAL_LIBRARIES}/MathMLSolver)\r
+-add_subdirectory(${EXTERNAL_LIBRARIES}/zlib)\r
+ \r
+ # building OpenCOLLADA libs\r
+ add_subdirectory(COLLADABaseUtils)\r
+--- OpenCOLLADA-1.6.68/DAEValidator/CMakeLists.txt.orig 2018-11-26 23:43:10.000000000 +0100
++++ OpenCOLLADA-1.6.68/DAEValidator/CMakeLists.txt 2023-04-01 21:20:25.487682198 +0200
+@@ -80,14 +80,7 @@ if (NOT LIBXML2_FOUND)
+ else ()
+ list(APPEND Libraries ${LIBXML2_LIBRARIES})
+ endif ()
+-if (USE_STATIC)
+- list(APPEND Libraries zlib_static)
+- else ()
+- list(APPEND Libraries zlib_shared)
+- endif ()
+-if (WIN32)
+- list(APPEND Libraries ws2_32.lib)
+-endif ()
++list(APPEND Libraries z)
+ target_link_libraries(DAEValidatorExecutable ${Libraries})
+ set_target_properties(DAEValidatorExecutable PROPERTIES OUTPUT_NAME DAEValidator)
+
--- /dev/null
+# TODO: system MathMLSolver? https://sourceforge.net/projects/mathmlsolver/files/
+#
+# Conditional build:
+%bcond_without static_libs # don't build static libraries
+#
+Summary: 3DS Max / Maya scenes exporter to COLLADA format
+Summary(pl.UTF-8): Biblioteki do eksportu scen 3DS Max / Maya do formatu COLLADA
+Name: OpenCOLLADA
+Version: 1.6.68
+Release: 1
+License: MIT
+Group: Libraries
+#Source0Download: https://github.com/KhronosGroup/OpenCOLLADA/releases
+Source0: https://github.com/KhronosGroup/OpenCOLLADA/archive/v%{version}/%{name}-%{version}.tar.gz
+# Source0-md5: ee7dae874019fea7be11613d07567493
+Patch0: %{name}-pcre.patch
+Patch1: %{name}-system-zlib.patch
+Patch2: %{name}-install-paths.patch
+URL: http://www.opencollada.org/
+BuildRequires: cmake >= 2.6
+BuildRequires: libstdc++-devel >= 6:4.7
+BuildRequires: libxml2-devel >= 2
+BuildRequires: pcre-devel
+BuildRequires: zlib-devel
+BuildRoot: %{tmpdir}/%{name}-%{version}-root-%(id -u -n)
+
+%description
+COLLADAMax and COLLADAMaya are new implementation of a 3ds Max or Maya
+plug-ins to export scene or parts of it to a COLLADA file, released
+under an MIT-license.
+
+%description -l pl.UTF-8
+COLLADAMax i COLLADAMaya to nowa implementacja wtyczek 3ds Max i Maya
+do eksportu scen lub ich części do plików COLLADA - wydana na licencji
+MIT.
+
+%package devel
+Summary: Header files for OpenCOLLADA libraries
+Summary(pl.UTF-8): Pliki nagłówkowe bibliotek OpenCOLLADA
+Group: Development/Libraries
+Requires: %{name} = %{version}-%{release}
+
+%description devel
+Header files for OpenCOLLADA libraries.
+
+%description devel -l pl.UTF-8
+Pliki nagłówkowe bibliotek OpenCOLLADA.
+
+%package static
+Summary: Static OpenCOLLADA libraries
+Summary(pl.UTF-8): Statyczne biblioteki OpenCOLLADA
+Group: Development/Libraries
+Requires: %{name}-devel = %{version}-%{release}
+
+%description static
+Static OpenCOLLADA libraries.
+
+%description static -l pl.UTF-8
+Statyczne biblioteki OpenCOLLADA.
+
+%prep
+%setup -q
+%patch0 -p1
+%patch1 -p1
+%patch2 -p1
+
+%build
+install -d build
+cd build
+%cmake .. \
+ -DOPENCOLLADA_INST_CMAKECONFIG=%{_libdir}/cmake/opencollada \
+ -DOPENCOLLADA_INST_LIBRARY=%{_libdir} \
+ -DUSE_SHARED=ON \
+ %{!?with_static_libs:-DUSE_STATIC=OFF}
+
+%{__make}
+
+%install
+rm -rf $RPM_BUILD_ROOT
+
+%{__make} -C build install \
+ DESTDIR=$RPM_BUILD_ROOT
+
+%clean
+rm -rf $RPM_BUILD_ROOT
+
+%post -p /sbin/ldconfig
+%postun -p /sbin/ldconfig
+
+%files
+%defattr(644,root,root,755)
+%doc README.md
+%attr(755,root,root) %{_libdir}/libGeneratedSaxParser.so
+%attr(755,root,root) %{_libdir}/libMathMLSolver.so
+%attr(755,root,root) %{_libdir}/libOpenCOLLADABaseUtils.so
+%attr(755,root,root) %{_libdir}/libOpenCOLLADAFramework.so
+%attr(755,root,root) %{_libdir}/libOpenCOLLADASaxFrameworkLoader.so
+%attr(755,root,root) %{_libdir}/libOpenCOLLADAStreamWriter.so
+%attr(755,root,root) %{_libdir}/libUTF.so
+%attr(755,root,root) %{_libdir}/libbuffer.so
+%attr(755,root,root) %{_libdir}/libftoa.so
+
+%files devel
+%defattr(644,root,root,755)
+%{_includedir}/opencollada
+%{_libdir}/cmake/opencollada
+
+%if %{with static_libs}
+%files static
+%defattr(644,root,root,755)
+%{_libdir}/libGeneratedSaxParser.a
+%{_libdir}/libMathMLSolver.a
+%{_libdir}/libOpenCOLLADABaseUtils.a
+%{_libdir}/libOpenCOLLADAFramework.a
+%{_libdir}/libOpenCOLLADASaxFrameworkLoader.a
+%{_libdir}/libOpenCOLLADAStreamWriter.a
+%{_libdir}/libUTF.a
+%{_libdir}/libbuffer.a
+%{_libdir}/libftoa.a
+%endif