tce-load -i compiletc openssl-dev

https://curl.haxx.se/download/curl-7.67.0.tar.xz

cd curl-7.67.0

CC="gcc -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os -pipe" CXX="g++ -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static --enable-threaded-resolver --with-ca-bundle=/usr/local/etc/ssl/certs/ca-certificates.crt --enable-ipv6

find . -name Makefile -type f -exec sed -i 's/-O2//g' {} \;

make [2m 15.20s]
sudo make install

  Host setup:       armv7l-unknown-linux-gnueabihf
  Install prefix:   /usr/local
  Compiler:         gcc -march=armv6zk -mtune=arm1176jzf-s -mfpu=vfp -Os -pipe
   CFLAGS:          -Werror-implicit-function-declaration -O2 -Wno-system-headers -pthread
   CPPFLAGS:        -I/usr/local/include
   LDFLAGS:         -L/usr/local/lib
   LIBS:            -lssl -lcrypto -lssl -lcrypto -lz

  curl version:     7.67.0
  SSL:              enabled (OpenSSL)
  SSH:              no      (--with-libssh2)
  zlib:             enabled
  brotli:           no      (--with-brotli)
  GSS-API:          no      (--with-gssapi)
  TLS-SRP:          enabled
  resolver:         POSIX threaded
  IPv6:             enabled
  Unix sockets:     enabled
  IDN:              no      (--with-{libidn2,winidn})
  Build libcurl:    Shared=yes, Static=no
  Built-in manual:  no      (--enable-manual)
  --libcurl option: enabled (--disable-libcurl-option)
  Verbose errors:   enabled (--disable-verbose)
  Code coverage:    disabled
  SSPI:             no      (--enable-sspi)
  ca cert bundle:   /usr/local/etc/ssl/certs/ca-certificates.crt   (warning: certs not found)
  ca cert path:     no
  ca fallback:      no
  LDAP:             no      (--enable-ldap / --with-ldap-lib / --with-lber-lib)
  LDAPS:            no      (--enable-ldaps)
  RTSP:             enabled
  RTMP:             no      (--with-librtmp)
  Metalink:         no      (--with-libmetalink)
  PSL:              no      (libpsl not found)
  Alt-svc:          no      (--enable-alt-svc)
  HTTP2:            disabled (--with-nghttp2)
  HTTP3:            disabled (--with-ngtcp2, --with-quiche)
  ESNI:             no      (--enable-esni)
  Protocols:        DICT FILE FTP FTPS GOPHER HTTP HTTPS IMAP IMAPS POP3 POP3S RTSP SMB SMBS SMTP SMTPS TELNET TFTP
  Features:         SSL IPv6 UnixSockets libz AsynchDNS NTLM NTLM_WB TLS-SRP HTTPS-proxy