As of commit 1c31950, the Image.PNG module fails unless Gz has already been loaded. The PIKE_MODULE_IMPORT lines fail, and the module chooses to export nothing.
rosuav@sikorsky:~/pike$ pike -e 'write("%d\n", sizeof(indices(Image.PNG)));' 0
But if the Gz module gets tagged first, it works:
rosuav@sikorsky:~/pike$ pike -e 'Gz.crc32; write("%d\n", sizeof(indices(Image.PNG)));' 7
Is there a way to force the Gz module to be loaded whenever Image.PNG gets loaded?
ChrisA