Fixes macOS build on some systems: Fixes #63

Signed-off-by: David Graeff <david.graeff@web.de>

Fixes macOS build on some systems: Fixes #63
Signed-off-by: David Graeff <david.graeff@web.de>
David Graeff
1 parent b7a65b8a
Showing 3 changed files with 79 additions and 22 deletions
cmake/FindFFTW.cmake
cmake/Findlibusb.cmake
openhantek/CMakeLists.txt
-# - Find FFTW
-# Find the native FFTW includes and library
+# - Find the FFTW library
 #
-#  FFTW_INCLUDES    - where to find fftw3.h
-#  FFTW_LIBRARIES   - List of libraries when using FFTW.
-#  FFTW_FOUND       - True if FFTW found.
+# Usage:
+#   find_package(FFTW [REQUIRED] [QUIET] )
+#
+# It sets the following variables:
+#   FFTW_FOUND					... true if fftw is found on the system
+#   FFTW_LIBRARIES				... full path to fftw library
+#   FFTW_INCLUDES				... fftw include directory
+#
+# The following variables will be checked by the function
+#   FFTW_USE_STATIC_LIBS		... if true, only static libraries are found
+#   FFTW_LIBRARIES				... fftw library to use
+#   FFTW_INCLUDE_DIRS			... fftw include directory
+#
+
+
+if (FFTW_LIBRARIES AND FFTW_INCLUDE_DIRS)
+  # in cache already
+  set(FFTW_FOUND TRUE)
+else (FFTW_LIBRARIES AND FFTW_INCLUDE_DIRS)
+
+if (FFTW_USE_STATIC_LIBS AND NOT MSVC)
+    set (LIBFFTW_LIB_SUFFIX ".a" CACHE INTERNAL "libfftw3 library name suffix passed to find_library")
+else (FFTW_USE_STATIC_LIBS AND NOT MSVC)
+    set (LIBFFTW_LIB_SUFFIX ".dylib" CACHE INTERNAL "libfftw3 library name suffix passed to find_library")
+endif (FFTW_USE_STATIC_LIBS AND NOT MSVC)
+
+  find_path(FFTW_INCLUDE_DIR
+    NAMES
+	fftw3.h
+    PATHS
+      /usr/include
+      /usr/local/include
+      /opt/local/include
+      /sw/include
+  )
+
+  find_library(FFTW_LIBRARY
+    NAMES
+      fftw3
+      libfftw3${LIBFFTW_LIB_SUFFIX}
+    PATHS
+      /usr/lib
+      /usr/local/lib
+      /opt/local/lib
+      /sw/lib
+  )
-if (FFTW_INCLUDES)
-  # Already in cache, be silent
-  set (FFTW_FIND_QUIETLY TRUE)
-endif (FFTW_INCLUDES)
+  set(FFTW_INCLUDE_DIRS
+    ${FFTW_INCLUDE_DIR}
+  )
+  set(FFTW_LIBRARIES
+    ${FFTW_LIBRARY}
+)
-find_path (FFTW_INCLUDES fftw3.h)
+  if (FFTW_INCLUDE_DIRS AND FFTW_LIBRARIES)
+     set(FFTW_FOUND TRUE)
+  endif (FFTW_INCLUDE_DIRS AND FFTW_LIBRARIES)
-find_library (FFTW_LIBRARIES NAMES fftw3)
+  if (FFTW_FOUND)
+    if (NOT FFTW_FIND_QUIETLY)
+      message(STATUS "Found libfftw3:")
+	  message(STATUS " - Includes: ${FFTW_INCLUDE_DIRS}")
+	  message(STATUS " - Libraries: ${FFTW_LIBRARIES}")
+    endif (NOT FFTW_FIND_QUIETLY)
+  else (FFTW_FOUND)
+    if (FFTW_FIND_REQUIRED)
+      message(FATAL_ERROR "Could not find libfftw3")
+    endif (FFTW_FIND_REQUIRED)
+  endif (FFTW_FOUND)
-# handle the QUIETLY and REQUIRED arguments and set FFTW_FOUND to TRUE if
-# all listed variables are TRUE
-include (FindPackageHandleStandardArgs)
-find_package_handle_standard_args (FFTW DEFAULT_MSG FFTW_LIBRARIES FFTW_INCLUDES)
+  # show the FFTW_INCLUDE_DIRS and FFTW_LIBRARIES variables only in the advanced view
+  mark_as_advanced(FFTW_INCLUDE_DIRS FFTW_LIBRARIES)
-mark_as_advanced (FFTW_LIBRARIES FFTW_INCLUDES)
 \ No newline at end of file
+endif (FFTW_LIBRARIES AND FFTW_INCLUDE_DIRS)
@@ -5,6 +5,7 @@ find_path(LIBUSB_INCLUDE_DIR
         /usr/local/include
         /opt/local/include
         /usr/include
+        /sw/include
     PATH_SUFFIXES
         libusb-1.0
 )
@@ -25,6 +26,7 @@ find_library(LIBUSB_LIBRARY
         /opt/local/lib
         /usr/lib
         /lib64/
+        /sw/lib
         /usr/lib/i386-linux-gnu/
         /usr/lib/x86_64-linux-gnu/
 )
@@ -36,4 +38,4 @@ if (LIBUSB_FOUND)
     set(LIBUSB_INCLUDE_DIRS ${LIBUSB_INCLUDE_DIR})
     set(LIBUSB_LIBRARIES ${LIBUSB_LIBRARY})
     mark_as_advanced(LIBUSB_INCLUDE_DIR LIBUSB_LIBRARY)
-endif (LIBUSB_FOUND)
 \ No newline at end of file
+endif (LIBUSB_FOUND)
@@ -35,20 +35,21 @@ else()
     target_compile_options(${PROJECT_NAME} PRIVATE "$<$<CONFIG:DEBUG>:-O0>")
     target_compile_options(${PROJECT_NAME} PRIVATE "$<$<CONFIG:RELEASE>:-fno-rtti>")
 endif()
-    
-if (UNIX)
+if(WIN32)
+    include(../cmake/fftw_on_windows.cmake)
+    include(../cmake/libusb_on_windows.cmake)
+else()
     find_package(libusb REQUIRED)
+    target_include_directories(${PROJECT_NAME} PRIVATE ${LIBUSB_INCLUDE_DIRS})
     target_link_libraries(${PROJECT_NAME} ${LIBUSB_LIBRARIES})
     find_package(Threads REQUIRED)
     target_link_libraries(${PROJECT_NAME} ${CMAKE_THREAD_LIBS_INIT})
     find_package(FFTW REQUIRED)
+    target_include_directories(${PROJECT_NAME} PRIVATE ${FFTW_INCLUDE_DIRS})
     target_link_libraries(${PROJECT_NAME} ${FFTW_LIBRARIES})
-elseif(WIN32)
-    include(../cmake/fftw_on_windows.cmake)
-    include(../cmake/libusb_on_windows.cmake)
 endif()
 # install commands