diff -rupN --no-dereference libwebp-1.3.1/CMakeLists.txt libwebp-1.3.1-new/CMakeLists.txt
--- libwebp-1.3.1/CMakeLists.txt	2023-06-30 13:58:57.241934631 +0200
+++ libwebp-1.3.1-new/CMakeLists.txt	2023-06-30 13:58:57.246934557 +0200
@@ -286,6 +286,9 @@ macro(set_version FILE TARGET_NAME NAME_
                  MACHO_CURRENT_VERSION
                  ${LIBWEBP_MACHO_COMPATIBILITY_VERSION}.${LT_REVISION})
   endif()
+  if(WIN32)
+    set_target_properties(${TARGET_NAME} PROPERTIES SUFFIX "-${LT_CURRENT_MINUS_AGE}${CMAKE_SHARED_LIBRARY_SUFFIX}")
+  endif(WIN32)
 endmacro()
 
 # ##############################################################################