note you only need CFLAGS64 but I guess it is ok to have both set.
12233 libsmbios fails to build on SPARC
Review Request #2494 — Created Jan. 20, 2020 and submitted
Recent changes to libsmbios (either #12133 or #12138) appear to tickle a build failure on SPARC ld: fatal: too many symbols require 'small' PIC references: have 1053, maximum 1024 -- recompile some modules -K PIC. collect2: ld returned 1 exit status Apparently we need C_BIGPICFLAGS/C_BIGPICFLAGS64, similar to the fix for #10391.
With the fix, SPARC build is clean again.