001+ PNG compression test: libpng warning: Application was compiled with png.h from libpng-1.2.39
001- PNG compression test: ok
002+ libpng warning: Application is running with png.c from libpng-1.4.4
003+ libpng warning: Incompatible libpng version in application and library
004+
005+ Warning: imagepng(): gd-png error: cannot allocate libpng main struct in %s/pngcomp.php on line 8
006+
007+ Warning: imagecreatefrompng(): '/usr/local/src/web/php-5.3.18/ext/gd/tests/test_pngcomp.png' is not a valid PNG file in %s/pngcomp.php on line 10
008+
009+ Warning: imagecolorat() expects parameter 1 to be resource, boolean given in %s/pngcomp.php on line 11