Building as shared libraries, adding extern C calls to support use from C++

graphics/lib/CMakeLists.txt

@@ -67,7 +67,7 @@ IF(QT4_FOUND AND QWT_FOUND AND QWT_MAJOR_VERSION EQUAL 6)
 
   INCLUDE_DIRECTORIES(common complexplot realplot scatterplot waterfallplot ${Boost_INCLUDE_DIRS}) 
   
-  ADD_LIBRARY(graphics ${eventwraps} ${lineplotwraps} ${pointplotwraps} ${spectrogramplotwraps} ${complex} ${real} ${scatter} ${waterfall} ${SOURCES_ALL} )
+  ADD_LIBRARY(graphics SHARED ${eventwraps} ${lineplotwraps} ${pointplotwraps} ${spectrogramplotwraps} ${complex} ${real} ${scatter} ${waterfall} ${SOURCES_ALL} )
   TARGET_LINK_LIBRARIES(graphics pthread ${QT_LIBRARIES} ${QWT_LIBRARIES})
   INSTALL(TARGETS graphics DESTINATION ${LIBRARY_DIR})
   LIBLTE_SET_PIC(graphics)

lte/include/lte.h

@@ -32,6 +32,10 @@
 #ifndef _LTE_
 #define _LTE_
 
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
 #include "lte/utils/bit.h"
 #include "lte/utils/convolution.h"
 #include "lte/utils/debug.h"
@@ -90,4 +94,8 @@
 #include "lte/sync/sync.h"
 #include "lte/sync/cfo.h"
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif

lte/lib/CMakeLists.txt

@@ -51,7 +51,7 @@ FOREACH (_module ${modules})
 	ENDIF(IS_DIRECTORY ${_module})
 ENDFOREACH()
 
-ADD_LIBRARY(lte ${SOURCES_ALL})
+ADD_LIBRARY(lte SHARED ${SOURCES_ALL})
 TARGET_LINK_LIBRARIES(lte m ${FFTW3F_LIBRARIES})
 INSTALL(TARGETS lte DESTINATION ${LIBRARY_DIR})
 LIBLTE_SET_PIC(lte)