ADD: added other eigen lib

libs/eigen/cmake/EigenConfigureTesting.cmake

@@ -8,9 +8,18 @@ ei_set_sitename()
 ei_set_build_string()
 
 add_custom_target(buildtests)
-add_custom_target(check COMMAND "ctest")
+add_custom_target(check COMMAND "ctest" ${EIGEN_CTEST_ARGS})
 add_dependencies(check buildtests)
 
+# Convenience target for only building GPU tests.
+add_custom_target(buildtests_gpu)
+add_custom_target(check_gpu COMMAND "ctest" "--output-on-failure" 
+                                            "--no-compress-output"
+                                            "--build-no-clean"
+                                            "-T" "test"
+                                            "-L" "gpu")
+add_dependencies(check_gpu buildtests_gpu)
+
 # check whether /bin/bash exists (disabled as not used anymore)
 # find_file(EIGEN_BIN_BASH_EXISTS "/bin/bash" PATHS "/" NO_DEFAULT_PATH)