diff -rupN --no-dereference libwebp-1.2.4/CMakeLists.txt libwebp-1.2.4-new/CMakeLists.txt
--- libwebp-1.2.4/CMakeLists.txt	2022-08-07 11:33:19.037010627 +0200
+++ libwebp-1.2.4-new/CMakeLists.txt	2022-08-07 11:33:19.041010627 +0200
@@ -396,6 +396,9 @@ macro(set_version FILE TARGET_NAME NAME_
                ${LT_CURRENT_MINUS_AGE}.${LT_AGE}.${LT_REVISION}
                SOVERSION
                ${LT_CURRENT_MINUS_AGE})
+  if(WIN32)
+    set_target_properties(${TARGET_NAME} PROPERTIES SUFFIX "-${LT_CURRENT_MINUS_AGE}${CMAKE_SHARED_LIBRARY_SUFFIX}")
+  endif(WIN32)
 endmacro()
 set_version(Makefile.am webp webp)
 set_version(Makefile.am webpdecoder webpdecoder)