sysutils/onefetch: fix build on powerpc*
/wrkdirs/usr/ports/sysutils/onefetch/work/onefetch-2.17.1/cargo-crates/libz-ng-sys-1.1.8/src/zlib-ng/functable.c:125:9: error: use of undeclared identifier 'power_cpu_has_arch_3_00'
if (power_cpu_has_arch_3_00)
^
/wrkdirs/usr/ports/sysutils/onefetch/work/onefetch-2.17.1/cargo-crates/libz-ng-sys-1.1.8/src/zlib-ng/functable.c:158:9: error: use of undeclared identifier 'power_cpu_has_arch_3_00'
if (power_cpu_has_arch_3_00)
^
/wrkdirs/usr/ports/sysutils/onefetch/work/onefetch-2.17.1/cargo-crates/libz-ng-sys-1.1.8/src/zlib-ng/functable.c:451:9: error: use of undeclared identifier 'power_cpu_has_arch_3_00'
if (power_cpu_has_arch_3_00)