Update to modern CMake usage

src/algorithms/resampler/gnuradio_blocks/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Copyright (C) 2012-2018  (see AUTHORS file for a list of contributors)
+# Copyright (C) 2012-2019  (see AUTHORS file for a list of contributors)
 #
 # This file is part of GNSS-SDR.
 #
@@ -29,22 +29,26 @@ set(RESAMPLER_GR_BLOCKS_HEADERS
     direct_resampler_conditioner_cb.h
 )
 
-include_directories(
-    ${CMAKE_CURRENT_SOURCE_DIR}
-    ${GLOG_INCLUDE_DIRS}
-    ${GFlags_INCLUDE_DIRS}
-    ${GNURADIO_RUNTIME_INCLUDE_DIRS}
-    ${VOLK_INCLUDE_DIRS}
-)
-
 list(SORT RESAMPLER_GR_BLOCKS_HEADERS)
 list(SORT RESAMPLER_GR_BLOCKS_SOURCES)
 
+source_group(Headers FILES ${RESAMPLER_GR_BLOCKS_HEADERS})
+
 add_library(resampler_gr_blocks
     ${RESAMPLER_GR_BLOCKS_SOURCES}
     ${RESAMPLER_GR_BLOCKS_HEADERS}
 )
 
-source_group(Headers FILES ${RESAMPLER_GR_BLOCKS_HEADERS})
+target_link_libraries(resampler_gr_blocks
+    PUBLIC
+        Gnuradio::runtime
+        Volk::volk
+    PRIVATE
+        Gflags::gflags
+        Glog::glog
+)
 
-add_dependencies(resampler_gr_blocks glog-${glog_RELEASE})
+set_property(TARGET resampler_gr_blocks
+    APPEND PROPERTY INTERFACE_INCLUDE_DIRECTORIES
+        $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
+)