Add liblz4 dependency for sdrdaemon plugin

cmake/Modules/FindLZ4.cmake

@@ -0,0 +1,27 @@
+INCLUDE(FindPkgConfig)
+PKG_CHECK_MODULES(PC_LZ4 "liblz4")
+
+FIND_PATH(LZ4_INCLUDE_DIRS
+    NAMES lz4.h
+    HINTS ${PC_LZ4_INCLUDE_DIR}
+    ${CMAKE_INSTALL_PREFIX}/include
+    ${LIBLZ4_INSTALL_PREFIX}/include
+    PATHS
+    /usr/local/include
+    /usr/include
+)
+
+FIND_LIBRARY(LZ4_LIBRARIES
+    NAMES lz4 liblz4
+    HINTS ${PC_LZ4_LIBDIR}
+    ${CMAKE_INSTALL_PREFIX}/lib
+    ${CMAKE_INSTALL_PREFIX}/lib64
+    PATHS
+    ${LZ4_INCLUDE_DIRS}/../lib
+    /usr/local/lib
+    /usr/lib
+)
+
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZ4 DEFAULT_MSG LZ4_LIBRARIES LZ4_INCLUDE_DIRS)
+MARK_AS_ADVANCED(LZ4_LIBRARIES LZ4_INCLUDE_DIRS)

plugins/samplesource/sdrdaemon/CMakeLists.txt

@@ -1,5 +1,7 @@
 project(sdrdaemon)
 
+find_package(LZ4)
+
 set(sdrdaemon_SOURCES
 	sdrdaemongui.cpp
 	sdrdaemoninput.cpp
@@ -40,9 +42,14 @@ add_library(inputsdrdaemon SHARED
 	${sdrdaemon_FORMS_HEADERS}
 )
 
+target_include_directories(inputsdrdaemon PUBLIC
+    ${LZ4_INCLUDE_DIRS}
+)
+
 target_link_libraries(inputsdrdaemon
 	${QT_LIBRARIES}
 	${LIBUSB_LIBRARIES}
+	${LZ4_LIBRARIES}
 	sdrbase
 )