Test: /ext/gd/tests/imagecolorallocatealpha_basic.phpt - Version 5.6.12    

There are 2 different diffs reported by users for this test.

Count Diff
15 (94%)
001+ string(32) "d3c7021a1c1ac969061381fc86dc4e14"
001- string(32) "b856a0b1a15efe0f79551ebbb5651fe8"
1 (6%)
001+ libpng warning: Application built with libpng-1.5.18 but running with 1.6.18
002+ string(32) "9fb5e1122a02fb17df87323bea40c694"
001- string(32) "b856a0b1a15efe0f79551ebbb5651fe8"