New comment by Oreo639 on void-packages repository

https://github.com/void-linux/void-packages/pull/18569#issuecomment-579549063

Comment:
re: Travis build error
https://github.com/PixarAnimationStudios/OpenSubdiv/blob/6b22e10875de77786d25c32ae23089f6558e994b/opensubdiv/tools/stringify/CMakeLists.txt#L26

stringify will not automatically build when cross compiling.
This is because it needs to be the the host arch, not the target arch.
When cross compiling, you will need to build it first for the host arch, [as discussed here](https://github.com/PixarAnimationStudios/OpenSubdiv/tree/6b22e10875de77786d25c32ae23089f6558e994b#ios)

Sorry if you already knew this.