fix

Former-commit-id: 162878ec45e3cd98555f08a1d3cf7fc343aa477a

cpp/unittest/db/CMakeLists.txt

@@ -47,6 +47,10 @@ set(db_libs
 
 if(${BUILD_FAISS_WITH_MKL} STREQUAL "ON")
     set(db_libs ${db_libs} ${MKL_LIBS} ${MKL_LIBS})
+else()
+    set(db_libs ${db_libs}
+            lapack
+            openblas)
 endif()
 
 target_link_libraries(db_test ${db_libs} ${unittest_libs})

cpp/unittest/faiss_wrapper/CMakeLists.txt

@@ -36,6 +36,10 @@ set(wrapper_libs
         )
 if(${BUILD_FAISS_WITH_MKL} STREQUAL "ON")
     set(wrapper_libs ${wrapper_libs} ${MKL_LIBS} ${MKL_LIBS})
+else()
+    set(wrapper_libs ${wrapper_libs}
+            lapack
+            openblas)
 endif()
 
 target_link_libraries(wrapper_test ${wrapper_libs} ${unittest_libs})

cpp/unittest/metrics/CMakeLists.txt

@@ -65,6 +65,10 @@ target_link_libraries(metrics_test
         )
 if(${BUILD_FAISS_WITH_MKL} STREQUAL "ON")
     target_link_libraries(metrics_test ${MKL_LIBS} ${MKL_LIBS})
+else()
+    target_link_libraries(metrics_test
+            lapack
+            openblas)
 endif()
 
 install(TARGETS metrics_test DESTINATION bin)
\ No newline at end of file

cpp/unittest/server/CMakeLists.txt

@@ -49,6 +49,10 @@ set(require_libs
 
 if(${BUILD_FAISS_WITH_MKL} STREQUAL "ON")
     set(require_libs ${require_libs} ${MKL_LIBS} ${MKL_LIBS})
+else()
+    set(require_libs ${require_libs}
+            lapack
+            openblas)
 endif()
 
 target_link_libraries(server_test