ftp://ftp.openssl.org/source/openssl-1.0.2f.tar.gz has moved to ftp://ftp.openssl.org/source/old/1.0.2/openssl-1.0.2f.tar.gz.
Should modify Makefile, from
@wget -qO $(TMP)openssl-$(OPENSSL_VERSION).tar.gz ftp://ftp.openssl.org/source/openssl-$(OPENSSL_VERSION).tar.gz
to
@wget -qO $(TMP)openssl-$(OPENSSL_VERSION).tar.gz ftp://ftp.openssl.org/source/old/1.0.2/openssl-$(OPENSSL_VERSION).tar.gz
ftp://ftp.openssl.org/source/openssl-1.0.2f.tar.gz has moved to ftp://ftp.openssl.org/source/old/1.0.2/openssl-1.0.2f.tar.gz.
Should modify Makefile, from @wget -qO $(TMP)openssl-$(OPENSSL_VERSION).tar.gz ftp://ftp.openssl.org/source/openssl-$(OPENSSL_VERSION).tar.gz to @wget -qO $(TMP)openssl-$(OPENSSL_VERSION).tar.gz ftp://ftp.openssl.org/source/old/1.0.2/openssl-$(OPENSSL_VERSION).tar.gz