--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -1,38 +1,16 @@
+cmake_minimum_required(VERSION 3.31)
+
 project (arss C)
+
+include(GNUInstallDirs)
+
 add_executable (arss arss.c dsp.c util.c image_io.c sound_io.c)
 
 
 SET (CMAKE_BUILD_TYPE Release)
 
-# look for the FFTW library
-FIND_PATH (FFTW3_INCLUDE_DIR fftw3.h PATHS /usr/local/include /usr/include /sw/include)
-FIND_LIBRARY (FFTW3_LIBRARY fftw3 fftw PATHS /usr/local/lib /usr/lib /lib /sw/lib)
-
-IF (FFTW3_INCLUDE_DIR AND FFTW3_LIBRARY)
-	SET (HAVE_FFTW3 TRUE)
-ELSE (FFTW3_INCLUDE_DIR AND FFTW3_LIBRARY)
-	IF (NOT FFTW3_FIND_QUIETLY)
-		IF (NOT FFTW3_INCLUDE_DIR)
-			MESSAGE (STATUS "Unable to find FFTW3 header files!")
-		ENDIF (NOT FFTW3_INCLUDE_DIR)
-		IF (NOT FFTW3_LIBRARY)
-			MESSAGE (STATUS "Unable to find FFTW3 library files!")
-		ENDIF (NOT FFTW3_LIBRARY)
-	ENDIF (NOT FFTW3_FIND_QUIETLY)
-ENDIF (FFTW3_INCLUDE_DIR AND FFTW3_LIBRARY)
-
-IF (HAVE_FFTW3)
-	IF (NOT FFTW3_FIND_QUIETLY)
-		MESSAGE (STATUS "Found components for FFTW3")
-		MESSAGE (STATUS "FFTW3_INCLUDE_DIR = ${FFTW3_INCLUDE_DIR}")
-		MESSAGE (STATUS "FFTW3_LIBRARY		 = ${FFTW3_LIBRARY}")
-	ENDIF (NOT FFTW3_FIND_QUIETLY)
-ELSE (HAVE_FFTW3)
-	IF (FFTW3_FIND_REQUIRED)
-		MESSAGE (FATAL_ERROR "Could not find FFTW3!")
-	ENDIF (FFTW3_FIND_REQUIRED)
-ENDIF (HAVE_FFTW3)
+find_package(FFTW3 CONFIG REQUIRED)
 
 TARGET_LINK_LIBRARIES (arss fftw3 m)
 
-INSTALL(PROGRAMS arss DESTINATION bin)
+INSTALL(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/arss DESTINATION ${CMAKE_INSTALL_BINDIR})