Install httpbf and make it possible to include the header in C++ code

src/httpbf/CMakeLists.txt

@@ -31,3 +31,14 @@ target_link_libraries(${HTTPBF_LIBRARY} ${NEON_LIBRARIES})
 if(NOT WIN32)
     add_definitions( -fPIC )
 endif()
+
+INSTALL(
+    TARGETS
+    ${HTTPBF_LIBRARY}
+    LIBRARY DESTINATION
+    ${LIB_INSTALL_DIR}
+    ARCHIVE DESTINATION
+    ${LIB_INSTALL_DIR}
+    RUNTIME DESTINATION
+    ${BIN_INSTALL_DIR}
+)

src/httpbf/src/httpbf.h

@@ -25,6 +25,11 @@
 
 #include <neon/ne_session.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
 enum hbf_state_e {
     HBF_SUCCESS,
     HBF_NOT_TRANSFERED,           /* never tried to transfer     */
@@ -99,4 +104,9 @@ const char *hbf_error_string( Hbf_State state );
  */
 int hbf_fail_http_code( hbf_transfer_t *transfer );
 
+#ifdef __cplusplus
+}
+#endif
+
+
 #endif