fix gcc 5.4 warnings

Jan Willamowius

2019-04-22 51213b102296c1e48f25aa9472a8be74a31cb6b7

 src/library/base/CMakeLists.txt

@@ -1,6 +1,9 @@
ADD_LIBRARY(base STATIC
    EventRegistry.cpp
    StringUtils.cpp
    logger.c
)

add_dependencies( base public_key )
add_dependencies( base public_key )

install(TARGETS base ARCHIVE DESTINATION lib)