Slackware 15.0 64-bit compiles and runs fine. Slackware 15.0 32-bit fails to build and gives the "out of memory" error:
cc1: out of memory allocating 180705472 bytes after a total of 284454912 bytes ... make[4]: *** [scripts/Makefile.build:289: drivers/staging/media/atomisp/pci/isp/kernels/ynr/ynr_1.0/ia_css_ynr.ho st.o] Error 1
Patching it with help from Lorenzo Stoakes allows the build to run: https://lore.kernel.org/lkml/5882b96e-1287-4390-8174-3316d39038ef@lucifer.lo...
And then 32-bit runs fine too.
Richard Narron