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=$http_proxy
opde feeds && opde config -a
make package/feeds/packages/opendkim/compile -j$(nproc) || make package/feeds/packages/opendkim/compile V=s

Applying ./patches/010-openssl_1.1_compat.patch using plaintext: 
patching file configure.ac
patching file opendkim/opendkim-crypto.c
patching file libopendkim/dkim.c
patching file opendkim/opendkim-testkey.c
patching file opendkim/opendkim.c

Applying ./patches/020-uclibc.patch using plaintext: 
patching file libopendkim/dkim-dns.c
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 -I m4
autoreconf: configure.ac: tracing
autoreconf: running: /openwrt/staging_dir/host/bin/libtoolize --install --force
OpenWrt-libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `build-aux'.
OpenWrt-libtoolize: linking file `build-aux/config.guess'
OpenWrt-libtoolize: linking file `build-aux/config.sub'
OpenWrt-libtoolize: linking file `build-aux/install-sh'
OpenWrt-libtoolize: linking file `build-aux/ltmain.sh'
OpenWrt-libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'.
OpenWrt-libtoolize: linking file `m4/libtool.m4'
OpenWrt-libtoolize: linking file `m4/ltoptions.m4'
OpenWrt-libtoolize: linking file `m4/ltsugar.m4'
OpenWrt-libtoolize: linking file `m4/ltversion.m4'
OpenWrt-libtoolize: linking file `m4/lt~obsolete.m4'
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
autoreconf: Leaving directory `.'
configure: WARNING: unrecognized options: --disable-nls
configure: loading site script /openwrt/include/site/mips
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 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 for style of include used by make... GNU
checking dependency style of ccache_cc... gcc3
checking for ccache_cc option to accept ISO C99... none needed
checking build system type... x86_64-pc-linux-gnu
checking host system type... mips-openwrt-linux-gnu
checking how to print strings... printf
checking for a sed that does not truncate output... /openwrt/staging_dir/host/bin/sed
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 for fgrep... /openwrt/staging_dir/host/bin/grep -F
checking for ld used by ccache_cc... mips-openwrt-linux-musl-ld
checking if the linker (mips-openwrt-linux-musl-ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... mips-openwrt-linux-musl-gcc-nm
checking the name lister (mips-openwrt-linux-musl-gcc-nm) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 3145728
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking how to convert x86_64-pc-linux-gnu file names to mips-openwrt-linux-gnu format... func_convert_file_noop
checking how to convert x86_64-pc-linux-gnu file names to toolchain format... func_convert_file_noop
checking for mips-openwrt-linux-musl-ld option to reload object files... -r
checking for mips-openwrt-linux-objdump... mips-openwrt-linux-musl-objdump
checking how to recognize dependent libraries... pass_all
checking for mips-openwrt-linux-dlltool... no
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for mips-openwrt-linux-ar... mips-openwrt-linux-musl-gcc-ar
checking for archiver @FILE support... @
checking for mips-openwrt-linux-strip... (cached) mips-openwrt-linux-musl-strip
checking for mips-openwrt-linux-ranlib... mips-openwrt-linux-musl-gcc-ranlib
checking command to parse mips-openwrt-linux-musl-gcc-nm output from ccache_cc object... ok
checking for sysroot... no
checking for mips-openwrt-linux-mt... no
checking for mt... no
checking if : is a manifest tool... no
checking how to run the C preprocessor... ccache_cc -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... yes
checking for objdir... .libs
checking if ccache_cc supports -fno-rtti -fno-exceptions... no
checking for ccache_cc option to produce PIC... -fPIC -DPIC
checking if ccache_cc PIC flag -fPIC -DPIC works... yes
checking if ccache_cc static flag -static works... yes
checking if ccache_cc supports -c -o file.o... yes
checking if ccache_cc supports -c -o file.o... (cached) yes
checking whether the ccache_cc linker (mips-openwrt-linux-musl-ld) supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking pkg-config is at least version 0.9.0... yes
checking if compiler needs -Werror to reject unknown flags... no
checking for the pthreads library -lpthreads... no
checking whether pthreads work without any flags... yes
checking for joinable pthread attribute... PTHREAD_CREATE_JOINABLE
checking if more special flags are required for pthreads... no
checking for PTHREAD_PRIO_INHERIT... yes
checking for library containing inet_addr... none required
checking for library containing dlopen... none required
checking for library containing socket... none required
checking for library containing inet_aton... none required
checking for library containing inet_pton... none required
checking for library containing inet_ntop... none required
checking for library containing getaddrinfo... none required
checking for library containing res_ninit... no
checking for library containing res_sertservers... no
checking for library containing getopt_long... none required
checking for sys/types.h... (cached) yes
checking for netinet/in.h... yes
checking for arpa/nameser.h... yes
checking for netdb.h... yes
checking for resolv.h... yes
checking for useconds_t... yes
checking whether the resolver works without -lresolv... yes
checking arpa/inet.h usability... yes
checking arpa/inet.h presence... yes
checking for arpa/inet.h... yes
checking fcntl.h usability... yes
checking fcntl.h presence... yes
checking for fcntl.h... yes
checking limits.h usability... yes
checking limits.h presence... yes
checking for limits.h... yes
checking iso/limits_iso.h usability... no
checking iso/limits_iso.h presence... no
checking for iso/limits_iso.h... no
checking for netdb.h... (cached) yes
checking for netinet/in.h... (cached) yes
checking paths.h usability... yes
checking paths.h presence... yes
checking for paths.h... yes
checking for stdlib.h... (cached) yes
checking for string.h... (cached) yes
checking sys/file.h usability... yes
checking sys/file.h presence... yes
checking for sys/file.h... yes
checking sys/param.h usability... yes
checking sys/param.h presence... yes
checking for sys/param.h... yes
checking sys/socket.h usability... yes
checking sys/socket.h presence... yes
checking for sys/socket.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking syslog.h usability... yes
checking syslog.h presence... yes
checking for syslog.h... yes
checking for unistd.h... (cached) yes
checking for stdint.h... (cached) yes
checking for stdbool.h that conforms to C99... yes
checking for _Bool... yes
checking for uid_t in sys/types.h... yes
checking for mode_t... yes
checking for off_t... yes
checking for pid_t... yes
checking for size_t... yes
checking for ssize_t... yes
checking for uint16_t... yes
checking for uint32_t... yes
checking for uint64_t... yes
checking vfork.h usability... no
checking vfork.h presence... no
checking for vfork.h... no
checking for fork... yes
checking for vfork... yes
checking for working fork... cross
configure: WARNING: result yes guessed because of cross compilation
checking for working vfork... (cached) yes
checking type of array argument to getgroups... gid_t
checking for getgroups... yes
checking for working getgroups... no
checking for stdlib.h... (cached) yes
checking for GNU libc compatible malloc... (cached) yes
checking whether time.h and sys/time.h may both be included... yes
checking for sys/time.h... (cached) yes
checking for unistd.h... (cached) yes
checking for alarm... yes
checking for working mktime... no
checking for stdlib.h... (cached) yes
checking for GNU libc compatible realloc... (cached) yes
checking for dup2... yes
checking for endpwent... yes
checking for getcwd... (cached) yes
checking for gethostname... yes
checking for gethostbyname... yes
checking for getaddrinfo... (cached) yes
checking for gethostbyname2... yes
checking for gettimeofday... (cached) yes
checking for isascii... yes
checking for memchr... yes
checking for memmove... yes
checking for memset... yes
checking for regcomp... yes
checking for select... yes
checking for socket... yes
checking for strcasecmp... yes
checking for strchr... yes
checking for strdup... yes
checking for strerror... (cached) yes
checking for strncasecmp... yes
checking for strrchr... yes
checking for strstr... yes
checking for strtol... yes
checking for strtoul... yes
checking for strtoull... yes
checking for realpath... yes
checking for strsep... yes
checking bsd/string.h usability... no
checking bsd/string.h presence... no
checking for bsd/string.h... no
checking for strlcat... yes
checking for strlcpy... yes
checking strl.h usability... no
checking strl.h presence... no
checking for strl.h... no
checking for strl.h in /usr/local/include/strl... checking for strl.h in /usr/include/strl... checking for struct sockaddr_un.sun_len... no
checking for struct sockaddr_in.sin_len... no
checking for struct sockaddr_in6.sin6_len... no
checking for rrdtool... no
checking for sendmail... /usr/sbin/sendmail
checking for LIBCRYPTO... no
configure: WARNING: pkg-config for openssl not found, trying manual search...
checking for OpenSSL library and includes... /usr
checking openssl/bio.h usability... no
checking openssl/bio.h presence... no
checking for openssl/bio.h... no
configure: error: required OpenSSL header not found
make[3]: *** [Makefile:108: /openwrt/build_dir/target-mips_24kc_musl/opendkim-2.10.3/.configured_68b329da9893e34099c7d8ad5cb9c940] Error 1