Here's an example Gerber X2 file, created from Altium.
Present situation is Gerbv reads X2 files, and strips X2 metadata. As such this seems...
String pointer cannot be freed directly, as program will crash. X2 support is complete:...
Example Gerber X2 format file.
Patch to support Gerber X2 format: Extended metadata
Useful patch! I hope it gets applied.
Good job! I'd like to see this patch applied (I use 3:5 format)