diff -up waifu2x-converter-cpp-5.2/CMakeLists.txt.set_soversion waifu2x-converter-cpp-5.2/CMakeLists.txt
--- waifu2x-converter-cpp-5.2/CMakeLists.txt.set_soversion	2017-11-19 11:31:04.000000000 +0100
+++ waifu2x-converter-cpp-5.2/CMakeLists.txt	2018-10-13 02:42:07.458680604 +0200
@@ -174,6 +174,8 @@ add_library(w2xc SHARED
 	src/Env.cpp src/Buffer.cpp
 )
 
+set_target_properties(w2xc PROPERTIES SOVERSION 1)
+
 add_dependencies(w2xc gensrcs)