cmake: fix *_DIR usage on FindLib and re-import SoapySDR module

CMakeLists.txt

@@ -287,14 +287,7 @@ if(ENABLE_RTLSDR)
   find_package(LibRTLSDR)
 endif()
 if(ENABLE_SOAPYSDR)
-  find_package(SoapySDR 0.4.0 NO_MODULE)
+  find_package(SoapySDR)
-  if(NOT "${SoapySDR_LIBRARIES}" STREQUAL "" AND NOT "${SoapySDR_INCLUDE_DIRS}" STREQUAL "")
-    set(SOAPYSDR_FOUND ON)
-    message(STATUS "Found SoapySDR: ${SoapySDR_INCLUDE_DIRS}, ${SoapySDR_LIBRARIES}")
-  endif()
-  # Only on APPLE; bad!
-  string(REPLACE "-flat_namespace" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
-  string(REPLACE "-flat_namespace" "" CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS}")
 endif()
 if(ENABLE_XTRX)
   find_package(LibXTRX)

cmake/Modules/FindLibBLADERF.cmake

@@ -2,7 +2,7 @@ if(NOT LIBBLADERF_FOUND)
 
   pkg_check_modules (LIBBLADERF_PKG libbladerf>=2.0)
 
-  if(LIBBLADERF_PKG_FOUND)
+  if(LIBBLADERF_PKG_FOUND OR (DEFINED BLADERF_DIR))
     find_path(LIBBLADERF_INCLUDE_DIRS
       NAMES libbladeRF.h
       PATHS ${BLADERF_DIR}/include
@@ -29,6 +29,6 @@ if(NOT LIBBLADERF_FOUND)
 
     mark_as_advanced(LIBBLADERF_INCLUDE_DIRS LIBBLADERF_LIBRARIES)
 
-  endif(LIBBLADERF_PKG_FOUND)
+  endif(LIBBLADERF_PKG_FOUND OR (DEFINED BLADERF_DIR))
 
 endif(NOT LIBBLADERF_FOUND)

cmake/Modules/FindLibIIO.cmake

@@ -2,7 +2,7 @@ if(NOT LIBIIO_FOUND)
 
   pkg_check_modules (LIBIIO_PKG libiio>=0.7)
 
-  if(LIBIIO_PKG_FOUND)
+  if(LIBIIO_PKG_FOUND OR (DEFINED IIO_DIR))
     find_path(LIBIIO_INCLUDE_DIR
       NAMES iio.h
       PATHS ${IIO_DIR}/include
@@ -29,6 +29,6 @@ if(NOT LIBIIO_FOUND)
 
     mark_as_advanced(LIBIIO_INCLUDE_DIR LIBIIO_LIBRARIES)
 
-endif(LIBIIO_PKG_FOUND)
+  endif(LIBIIO_PKG_FOUND OR (DEFINED IIO_DIR))
 
 endif(NOT LIBIIO_FOUND)

cmake/Modules/FindSoapySDR.cmake

@@ -0,0 +1,52 @@
+if(NOT SOAPYSDR_FOUND)
+
+  function(_SOAPY_SDR_GET_ABI_VERSION VERSION SOAPY_SDR_INCLUDE_DIR)
+    file(READ "${SOAPY_SDR_INCLUDE_DIR}/SoapySDR/Version.h" version_h)
+    string(REGEX MATCH "\\#define SOAPY_SDR_ABI_VERSION \"([0-9]+\\.[0-9]+(-[A-Za-z0-9]+)?)\"" SOAPY_SDR_ABI_VERSION_MATCHES "${version_h}")
+    if(NOT SOAPY_SDR_ABI_VERSION_MATCHES)
+      message(FATAL_ERROR "Failed to extract version number from Version.h")
+    endif(NOT SOAPY_SDR_ABI_VERSION_MATCHES)
+    set(${VERSION} "${CMAKE_MATCH_1}" PARENT_SCOPE)
+  endfunction(_SOAPY_SDR_GET_ABI_VERSION)
+
+  pkg_check_modules (LIBSOAPYSDR_PKG soapysdr>=0.4.0)
+
+  if(LIBSOAPYSDR_PKG_FOUND OR (DEFINED SOAPYSDR_DIR))
+
+    find_path (SOAPYSDR_INCLUDE_DIR
+      NAMES SoapySDR/Version.h
+      PATHS ${SOAPYSDR_DIR}/include
+      ${LIBSOAPYSDR_PKG_INCLUDE_DIRS}
+      /usr/include
+      /usr/local/include
+      )
+
+    find_library (SOAPYSDR_LIBRARY
+      NAMES SoapySDR
+      HINTS ${CMAKE_INSTALL_PREFIX}/lib
+      ${CMAKE_INSTALL_PREFIX}/lib64
+      PATHS ${SOAPYSDR_DIR}/lib
+      ${SOAPYSDR_DIR}/lib64
+      ${LIBSOAPYSDR_PKG_LIBRARY_DIRS}
+      /usr/local/lib
+      /usr/local/lib64
+      /usr/lib
+      /usr/lib64
+      )
+
+    if (SOAPYSDR_INCLUDE_DIR AND SOAPYSDR_LIBRARY)
+      set(SOAPYSDR_FOUND TRUE)
+      # get the root of SoapySDR; used on cpack
+      string(REGEX REPLACE "/lib/.*${CMAKE_SHARED_LIBRARY_SUFFIX}" "" SOAPYSDR_ROOT ${SOAPYSDR_LIBRARY})
+      # get the soapy version; to using FindPkgConfig because we can use SOAPYSDR_DIR
+      _SOAPY_SDR_GET_ABI_VERSION(SOAPYSDR_ABI_VERSION ${SOAPYSDR_INCLUDE_DIR})
+      message (STATUS "Found SoapySDR: ${SOAPYSDR_INCLUDE_DIR}, ${SOAPYSDR_LIBRARY}")
+    else()
+      message (STATUS "SoapySDR not found")
+    endif()
+
+    mark_as_advanced(SOAPYSDR_INCLUDE_DIR SOAPYSDR_LIBRARY SOAPYSDR_ROOT SOAPYSDR_ABI_VERSION)
+
+  endif(LIBSOAPYSDR_PKG_FOUND OR (DEFINED SOAPYSDR_DIR))
+
+endif(NOT SOAPYSDR_FOUND)

cmake/cpack/CMakeLists.txt

@@ -69,11 +69,11 @@ Plugins = ../PlugIns
   # probably libmirsdrapi-rsp.dylib can't be re-distribuited
   # we remove the file at the end of fixup_bundle
   if(ENABLE_SOAPYSDR AND SOAPYSDR_FOUND)
-    set(SOAPY_SDR_MOD_PATH "${SOAPY_SDR_ROOT}/lib/SoapySDR/modules${SOAPY_SDR_ABI_VERSION}")
+    set(SOAPY_SDR_MOD_PATH "${SOAPYSDR_ROOT}/lib/SoapySDR/modules${SOAPYSDR_ABI_VERSION}")
     file(GLOB SOAPY_MODS ${SOAPY_SDR_MOD_PATH}/*.so)
     foreach(SOAPY_MOD_FILE ${SOAPY_MODS})
       install( FILES "${SOAPY_MOD_FILE}"
-        DESTINATION "../Frameworks/SoapySDR/modules${SOAPY_SDR_ABI_VERSION}"
+        DESTINATION "../Frameworks/SoapySDR/modules${SOAPYSDR_ABI_VERSION}"
         COMPONENT Runtime
         )
     endforeach()

devices/soapysdr/CMakeLists.txt

@@ -15,7 +15,7 @@ set(soapysdrdevice_HEADERS
 )
 
 include_directories(
-    ${SoapySDR_INCLUDE_DIRS}
+    ${SOAPYSDR_INCLUDE_DIR}
 )
 
 add_library(soapysdrdevice SHARED
@@ -26,7 +26,7 @@ set_target_properties(soapysdrdevice
     PROPERTIES DEFINE_SYMBOL "devices_EXPORTS")
 
 target_link_libraries(soapysdrdevice
-    ${SoapySDR_LIBRARIES}
+    ${SOAPYSDR_LIBRARY}
     sdrbase
 )
 

plugins/samplesink/soapysdroutput/CMakeLists.txt

@@ -17,7 +17,7 @@ set(soapysdroutput_HEADERS
 include_directories(
         ${CMAKE_SOURCE_DIR}/swagger/sdrangel/code/qt5/client
 	${CMAKE_SOURCE_DIR}/devices
-	${SoapySDR_INCLUDE_DIRS}
+	${SOAPYSDR_INCLUDE_DIR}
 )
 
 if(NOT SERVER_MODE)
@@ -53,7 +53,7 @@ target_link_libraries(${TARGET_NAME}
 	sdrbase
 	${TARGET_LIB_GUI}
         swagger
-        ${SoapySDR_LIBRARIES}
+        ${SOAPYSDR_LIBRARY}
         soapysdrdevice
 )
 

plugins/samplesource/soapysdrinput/CMakeLists.txt

@@ -17,7 +17,7 @@ set(soapysdrinput_HEADERS
 include_directories(
         ${CMAKE_SOURCE_DIR}/swagger/sdrangel/code/qt5/client
 	${CMAKE_SOURCE_DIR}/devices
-	${SoapySDR_INCLUDE_DIRS}
+	${SOAPYSDR_INCLUDE_DIR}
 )
 
 if(NOT SERVER_MODE)
@@ -53,7 +53,7 @@ target_link_libraries(${TARGET_NAME}
 	sdrbase
 	${TARGET_LIB_GUI}
         swagger
-        ${SOAPYSDR_LIBRARIES}
+        ${SOAPYSDR_LIBRARY}
         soapysdrdevice
 )