diff '--color=auto' -arNu a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt	2024-03-03 02:11:53.952166254 +0100
+++ b/CMakeLists.txt	2024-03-03 02:11:16.832164723 +0100
@@ -380,12 +380,6 @@
           DESTINATION bin)
 endif()
 
-# On versions of CMake that support it, create an export file CMake
-# users can include() to import our targets
-if(PNG_EXPORT_RULE AND NOT SKIP_INSTALL_EXPORT AND NOT SKIP_INSTALL_ALL )
-  install(EXPORT libpng DESTINATION lib/libpng FILE lib${PNG_LIB_NAME}.cmake)
-endif()
-
 # what's with libpng-$VER%.txt and all the extra files?