Improve compatibility with new CMake macro

Signed-off-by: Igor Raits <ignatenkobrain@fedoraproject.org>

woff2.spec

@@ -1,3 +1,5 @@
+%undefine __cmake_in_source_build
+
 Name:           woff2
 Version:        1.0.2
 Release:        8%{?dist}
@@ -36,23 +38,20 @@ Development files and utils for %{name}
 %autosetup -n %{name}-%{version}
 
 %build
-mkdir -p %{_target_platform}
-pushd %{_target_platform}
-%cmake .. \
+%cmake \
     -DCMAKE_INSTALL_PREFIX="%{_prefix}" \
     -DCMAKE_INSTALL_LIBDIR="%{_libdir}"
-popd
-
-make %{?_smp_mflags} -C %{_target_platform}
+%cmake_build
 
 %install
-%make_install -C %{_target_platform}
-pushd %{_target_platform}
-mkdir -p  %{buildroot}%{_bindir}/
+%cmake_install
+mkdir -p %{buildroot}%{_bindir}/
+
+cd %{_target_platform}
 install -m 755 woff2_decompress %{buildroot}%{_bindir}/
 install -m 755 woff2_compress %{buildroot}%{_bindir}/
 install -m 755 woff2_info %{buildroot}%{_bindir}/
-popd
+cd -
 
 %files
 %license LICENSE