Use cmake macros to fix build

gdcm.spec

@@ -1,9 +1,9 @@
 # Enabled by default
-%bcond_with tests
+%bcond_without tests
 
 Name:       gdcm
 Version:    3.0.7
-Release:    3%{?dist}
+Release:    4%{?dist}
 Summary:    Grassroots DiCoM is a C++ library to parse DICOM medical files
 License:    BSD
 URL:        http://gdcm.sourceforge.net/wiki/index.php/Main_Page
@@ -134,9 +134,6 @@ rm -rf Utilities/wxWidgets
 #rm -rf Utilities/gdcmmd5
 
 %build
-mkdir -p %{_target_platform}
-pushd %{_target_platform}
-
 %cmake  .. \
     -DCMAKE_VERBOSE_MAKEFILE=ON \
     -DGDCM_INSTALL_PACKAGE_DIR=%{_libdir}/cmake/%{name} \
@@ -173,12 +170,10 @@ pushd %{_target_platform}
 #   -DGDCM_VTK_JAVA_JAR:PATH=/usr/share/java/vtk.jar no found!
 #   yum provides */vtk.jar -> No results found
 
-popd
-
-%make_build -C %{_target_platform}
+%cmake_build
 
 %install
-%make_install -C %{_target_platform}
+%cmake_install
 install -d $RPM_BUILD_ROOT%{python3_sitearch}
 
 # Install examples
@@ -189,7 +184,7 @@ cp -rv ./Examples/* $RPM_BUILD_ROOT/%{_datadir}/%{name}/Examples/
 %check
 # Making the tests informative only for now. Several failing tests (27/228):
 # 11,40,48,49,107-109,111-114,130-135,146,149,,151-154,157,194,216,219
-make test -C %{_target_platform} || exit 0
+make test -C %{__cmake_builddir} || exit 0
 %endif
 
 %files
@@ -266,6 +261,10 @@ make test -C %{_target_platform} || exit 0
 %{python3_sitearch}/__pycache__/%{name}*
 
 %changelog
+* Sun Sep 13 2020 Ankur Sinha <ankursinha AT fedoraproject DOT org> - 3.0.7-4
+- use cmake macros and fix build
+- Enable tests
+
 * Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 3.0.7-3
 - Second attempt - Rebuilt for
   https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild