Merge branch 'patch-1' into 'master'

Set symbol visibility to hidden in cmake

See merge request !15

CMakeLists.txt

@@ -20,7 +20,7 @@ find_library(LIBUBSAN NAMES ubsan libubsan.so.0)
 #
 ## Set various debug flags (instrumentation libs, coverage, …)
 #
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y -pedantic -Wall -Wextra -Wconversion")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++1y -pedantic -Wall -Wextra -Wconversion -fvisibility=hidden -fvisibility-inlines-hidden")
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
   set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -fprofile-arcs -ftest-coverage --coverage")
 endif()