Adapt the spec file to use the new style cmake macros

eccodes.spec

@@ -1,6 +1,6 @@
 Name:           eccodes
 Version:        2.18.0
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        WMO data format decoding and encoding
 
 # force the shared libraries to have these so versions
@@ -176,12 +176,12 @@ in C, and Fortran 90.
 %autosetup -n %{name}-%{version}-Source -p1
 
 # unpack the test data below build
-mkdir build
-cd build
+mkdir -p %{_vpath_builddir}
+pushd %{_vpath_builddir}
 tar xf %SOURCE1
+popd
 
 # remove executable permissions from c files
-cd ..
 chmod 644 tigge/*.c
 chmod 644 tools/*.c
 
@@ -189,7 +189,6 @@ chmod 644 tools/*.c
 chmod 644 AUTHORS LICENSE
 
 %build
-cd build
 
 #-- The following features are disabled by default and not switched on:
 #
@@ -244,19 +243,20 @@ cd build
         -DECCODES_SOVERSION=%{so_version} \
         -DECCODES_SOVERSION_F90=%{so_version_f90} \
         -DCMAKE_Fortran_FLAGS="-fallow-argument-mismatch" \
-        -DENABLE_PYTHON=OFF \
-        ..
+        -DENABLE_PYTHON=OFF
 
-%make_build
+# note the final '..' is no longer needed to the cmake3 call.
+# this is now hidden in the %%cmake3 macro
+
+%cmake_build
 
 # copy some include files to the build dir
-# that are otherwise not found when creating the debugsource subpackage
-cd ..
-cp fortran/eccodes_constants.h build/fortran/
-cp fortran/grib_api_constants.h build/fortran/
+# that are otherwise not found when creating the debugsource sub-package
+cp fortran/eccodes_constants.h %{_vpath_builddir}/fortran/
+cp fortran/grib_api_constants.h %{_vpath_builddir}/fortran/
 
 %install
-%make_install -C build
+%cmake_install
 mkdir -p %{buildroot}%{_fmoddir}
 mv %{buildroot}%{_includedir}/*.mod %{buildroot}%{_fmoddir}/
 
@@ -307,7 +307,7 @@ sed -i 's|^libs=.*$|libs=-L${libdir} -leccodes_f90 -leccodes|g' %{buildroot}/%{_
 %ldconfig_scriptlets
 
 %check
-cd build
+cd  %{_vpath_builddir}
 
 # notes:
 # * the LD_LIBRARY_PATH setting is required to let the tests
@@ -317,6 +317,8 @@ cd build
 #   'eccodes_t_bufr_dump_(de|en)code_C' tests run.
 #   These tests compile on the fly generated C code, and
 #   without this setting the loader does not find the libraries.
+# * this is a 'non-standard' use of ctest3 so it does currently not
+#   work with the %%ctest macro.
 
 LD_LIBRARY_PATH=%{buildroot}/%{_libdir} \
 LIBRARY_PATH=%{buildroot}/%{_libdir} \
@@ -348,6 +350,9 @@ ctest3 -V %{?_smp_mflags}
 %doc %{_datadir}/doc/%{name}/
 
 %changelog
+* Wed Aug 05 2020 Jos de Kloe <josdekloe@gmail.com> - 2.18.0-5
+- Adapt the spec file to use the new style cmake macros
+
 * Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 2.18.0-4
 - Second attempt - Rebuilt for
   https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild