TYPO3 Core

I'm not sure if this is really a bug or just a wrong system configuration:

In /typo3/sysext/install/Classes/Configuration/Image/GraphicsMagickPreset.php / function findGraphicsMagickInPaths is a check if gm exists:

if (@is_file($path . $executable)) {

As /usr/bin is not (and IMHO should not be) in the openBasedir definition, the (existing) file /usr/bin/gm is not found - at least I think, that is the reason.

The consequence: In the install tool I can't choice the "Graphics Magick" option.
But if I comment out the above condition I can choice the option - and it works without a problem.

That means that not finding an executable file with php is_file function in the web server context doesn't imply that the file is not executable with php.

Same with ImageMagick6Preset.php and with TYPO3 6.2.