diff -ur a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt	2016-09-15 02:39:32.000000000 -0600
+++ b/CMakeLists.txt	2021-03-10 10:00:28.227544744 -0700
@@ -46,10 +46,7 @@
 
 message(STATUS "CMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}")
 
-
-find_path(GTEST_INCLUDE_DIRS gtest/gtest.h PATHS ${PROJECT_SOURCE_DIR}/gtest/include)
-set(GTEST_LIBRARIES ${PROJECT_BINARY_DIR}/bingtest/libgtest.a)
-set(GTEST_MAIN_LIBRARIES ${PROJECT_BINARY_DIR}/bingtest/libgtest_main.a)
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake-modules")
 
 # sakura root directory
 set(SAKURA_ROOT_DIR ${PROJECT_SOURCE_DIR})
@@ -57,5 +54,3 @@
 #set(CMAKE_BUILD_TYPE Release)
 
 add_subdirectory(src bin)
-add_subdirectory(gtest bingtest)
-add_subdirectory(test bintest)
diff -ur a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt	2016-09-15 02:39:32.000000000 -0600
+++ spack-src/src/CMakeLists.txt	2021-03-10 09:56:22.399794093 -0700
@@ -25,12 +25,10 @@
 
 project(libsakura)
 
-set(CMAKE_MODULE_PATH ../cmake-modules CACHE STRING "List of directories to search for CMake modules")
-
 find_package(Threads)
 find_package(Eigen3 3.2.0 REQUIRED)
 find_package(Log4Cxx)
-find_package(FFTW3 3.3.2 REQUIRED)
+find_package(FFTW3 3.3.2 MODULE REQUIRED)
 include(SetArchFlags)
 
 set(CMAKE_INSTALL_PREFIX /usr/local)