docker pull elonh/opde:sdk
docker run -it --rm elonh/opde:sdk zsh # or bash
export http_proxy= # [your proxy], do not use localhost or 127.0.0.1
export https_proxy=$http_proxy
opde feeds && opde config -a
make package/feeds/packages/rng-tools/compile -j$(nproc) || make package/feeds/packages/rng-tools/compile V=s

autoreconf: Entering directory `.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: /openwrt/staging_dir/host/bin/aclocal -I /openwrt/staging_dir/target-mips_24kc_musl/host/share/aclocal -I /openwrt/staging_dir/hostpkg/share/aclocal -I /openwrt/staging_dir/target-mips_24kc_musl/usr/share/aclocal -I m4 -I . --force 
autoreconf: configure.ac: tracing
autoreconf: configure.ac: not using Libtool
autoreconf: running: /openwrt/staging_dir/host/bin/autoconf --include=/openwrt/staging_dir/target-mips_24kc_musl/host/share/aclocal --include=/openwrt/staging_dir/hostpkg/share/aclocal --include=/openwrt/staging_dir/target-mips_24kc_musl/usr/share/aclocal --include=m4 --include=. --prepend-include=/openwrt/staging_dir/host/share/aclocal --force
autoreconf: running: /openwrt/staging_dir/host/bin/autoheader --include=/openwrt/staging_dir/target-mips_24kc_musl/host/share/aclocal --include=/openwrt/staging_dir/hostpkg/share/aclocal --include=/openwrt/staging_dir/target-mips_24kc_musl/usr/share/aclocal --include=m4 --include=. --prepend-include=/openwrt/staging_dir/host/share/aclocal --force
autoreconf: running: /openwrt/staging_dir/host/bin/automake --add-missing --force-missing
configure.ac:60: installing './compile'
configure.ac:23: installing './config.guess'
configure.ac:23: installing './config.sub'
configure.ac:24: installing './install-sh'
configure.ac:24: installing './missing'
Makefile.am: installing './depcomp'
parallel-tests: installing './test-driver'
autoreconf: Leaving directory `.'
configure: WARNING: unrecognized options: --disable-nls
configure: loading site script /openwrt/include/site/mips
checking build system type... x86_64-pc-linux-gnu
checking host system type... mips-openwrt-linux-gnu
checking target system type... mips-openwrt-linux-gnu
checking for a BSD-compatible install... /openwrt/staging_dir/host/bin/install -c
checking whether build environment is sane... yes
checking for mips-openwrt-linux-strip... mips-openwrt-linux-musl-strip
checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for style of include used by make... GNU
checking for mips-openwrt-linux-gcc... ccache_cc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether ccache_cc accepts -g... yes
checking for ccache_cc option to accept ISO C89... none needed
checking whether ccache_cc understands -c and -o together... yes
checking dependency style of ccache_cc... gcc3
checking dependency style of ccache_cc... gcc3
checking for mips-openwrt-linux-gcc... (cached) ccache_cc
checking whether we are using the GNU C compiler... (cached) yes
checking whether ccache_cc accepts -g... (cached) yes
checking for ccache_cc option to accept ISO C89... (cached) none needed
checking whether ccache_cc understands -c and -o together... (cached) yes
checking dependency style of ccache_cc... (cached) gcc3
checking for mips-openwrt-linux-ranlib... mips-openwrt-linux-musl-gcc-ranlib
checking how to run the C preprocessor... ccache_cc -E
checking for grep that handles long lines and -e... /openwrt/staging_dir/host/bin/grep
checking for egrep... /openwrt/staging_dir/host/bin/grep -E
checking whether ccache_cc needs -traditional... no
checking for mips-openwrt-linux-ar... mips-openwrt-linux-musl-gcc-ar
checking for a sed that does not truncate output... /openwrt/staging_dir/host/bin/sed
checking whether ccache_cc is Clang... no
checking whether pthreads work with -pthread... yes
checking for joinable pthread attribute... PTHREAD_CREATE_JOINABLE
checking whether more special flags are required for pthreads... no
checking for PTHREAD_PRIO_INHERIT... yes
configure: Searching for jitterentropy library
checking for library containing jent_version... no
configure: No Jitterentropy library found
checking pkg-config is at least version 0.9.0... yes
checking for openssl... no
configure: error: openssl is required
make[3]: *** [Makefile:73: /openwrt/build_dir/target-mips_24kc_musl/rng-tools-6.10/.configured_68b329da9893e34099c7d8ad5cb9c940] Error 1