Fixes: https://autobuild.buildroot.net/results/5a5/5a57a82800fb7a47731198effc15bd7044133c4d/ src/modules/rlm_mschap/rlm_mschap.c:1016:54: error: implicit declaration of function 'EVP_rc4'; did you mean 'EVP_md4'? The oldest build error found with a quick search appeared back in July 2024 with freeradius-server 3.2.3 so a backport should be considered: https://autobuild.buildroot.net/results/e2d/e2d77a52f81b0fea1081417c5c80f7991e27810a/ Signed-off-by: Bernd Kuhls <bernd@kuhls.net> Signed-off-by: Julien Olivain <ju.o@free.fr>