diff --git a/double-conversion.spec b/double-conversion.spec
index d57ce23..8d9bcf3 100644
--- a/double-conversion.spec
+++ b/double-conversion.spec
@@ -1,3 +1,4 @@
+%undefine __cmake_in_source_build
 %bcond_without static_libs # don't build static libraries
 
 Summary:        Library providing binary-decimal and decimal-binary routines for IEEE doubles
@@ -39,35 +40,27 @@ Static %{name} library.
 %setup -q
 
 %build
-mkdir -p build-shared
-pushd build-shared
-  %cmake -DBUILD_TESTING=ON ..
-  make %{_smp_mflags}
-popd
+%global _vpath_builddir build-shared
+%cmake -DBUILD_TESTING=ON
+%cmake_build
 
 %if %{with static_libs}
-mkdir  -p build-static
-pushd build-static
-  CXXFLAGS="%{optflags} -fPIC" %cmake -DBUILD_SHARED_LIBS=NO ..
-  make %{_smp_mflags}
-popd
+%global _vpath_builddir build-static
+CXXFLAGS="%{optflags} -fPIC" %cmake -DBUILD_SHARED_LIBS=NO
+%cmake_build
 %endif
 
 %install
 %if %{with static_libs}
-pushd build-static
-  make install DESTDIR=%{buildroot}
-popd
+%global _vpath_builddir build-static
+%cmake_install
 %endif
 
-pushd build-shared
-  make install DESTDIR=%{buildroot}
-popd
+%global _vpath_builddir build-shared
+%cmake_install
 
 %check
-pushd build-shared
-  ctest -V
-popd
+%ctest
 
 %ldconfig_scriptlets