Qt 4.7.4 - problem with libpng

[Lesiok]

System Windows (Vista, WS-2003), Visual Studio C++ 2008.
After recompiling Qt 4.7.4 with libpng using PNG pictures generate warning :

libpng warning: Interlace handling should be turned on when using png_read_image

On Qt 4.7.2 problem don't exist. So question : how to build Qt.4.7.4 to suppress this problem ?

[vcp]

Hi,
The problem really exists.
QtSDK installed (4.7.4) and recompile an application (that works perfectly) that reads images .png,
and it crashes when trying to read any file .png.

Up to version 4.7.3 it didn't happen.

Thanks

[Lesiok]

After downgrading libpng to version from Qt 4.7.3 all is working perfect.

[vcp]

Hi,

I create a bug report about this issue.
https://bugreports.qt.nokia.com/browse/QTBUG-21408

Perhaps you can add your comments too.

[vcp]

Hi,

This bug was identified and will be fixed. See:

[ https://bugreports.qt.nokia.com/browse/QTBUG-21408?page=com.atlassian.jira.plugin.system.issuet abpanels:comment-tabpanel&focusedCommentId=164128#comment-164128 ]

Leonard Lee commented on QTBUG-21408:
-------------------------------------

This issue was fixed in QTBUG-13298 for Qt 4.8.