I made some experiments with a slightly modified config, which fits perfectly in a 4 MB flash:
f:
@$(MAKE) bin USB="" B=F MULTIWAN=y NO_CIFS=y NO_JFFS=y NO_ZEBRA=y BCMNAT=y OPTIMIZE_SIZE_MORE=y KERN_SIZE_OPT_MORE=y PROXY=y NO_FTP=y NO_HTTPS=y NO_XXTP=y SNMP=y ROAM=y BUILD_DESC="MiniIPv4-SNMP"
OUI , as usual, gives popup openssl is not found (which makes sense, because is not defined AND NO_HTTPS=y is set ;-)
When i add openssl support, the image is with included SNMP and ipv4 ONLY > 4.2 MB - which is way to big.
Question: can wget instead build with embedssl or minimalmbedssl, instead openssl big-fat-libs ?
When i check some libs, i saw that a minimal crypt support is included, but is not used for wget.
So there is no need for a full local HTTPS support, only wget should be tls-capable to request the OUI-Infos from a ssl-website ?