Nice, I see that your strating from the build of https://github.com/endlessm/cnijfilter-common that has not been maintained since 3 years now.
Unfortunately for me it doesn't support yet my pixma G5550. However Canon distribute new sources for the cnijfilter (https://www.canon-europe.com/support/consumer/products/printers/pixma/g-series/pixma-g550.html?type=drivers&detailId=tcm:13-2160851&os=all&language=en&productTcmUri=tcm:13-2080172).
Any suggestion how I can adapt your build to use directly Canon sources ? (or directly 64bits binaries)