SQLite

        # --disable-static-shell: https://sqlite.org/forum/forumpost/cc219ee704
        # Note that this has a different meaning from --static-cli-shell in the
        # canonical build!
        static-shell=1
          => {Link the sqlite3 shell app against the DLL instead of embedding sqlite3.c}
      }
      {canonical autoconf} {
        # A potential TODO without a current use case:
        #rpath=1 => {Disable use of the rpath linker flag}

        # soname: https://sqlite.org/src/forumpost/5a3b44f510df8ded
        soname:=legacy
          => {SONAME for libsqlite3.so. "none", or not using this flag, sets no
              soname. "legacy" sets it to its historical value of
              libsqlite3.so.0.  A value matching the glob "libsqlite3.*" sets
              it to that literal value. Any other value is assumed to be a
              suffix which gets applied to "libsqlite3.so.",

  define TCL_EXT_DLL_BASENAME $libname
  # The extension is added in the makefile
}

########################################################################
# Handle the --enable/disable-rpath flag.
proc sqlite-handle-rpath {} {
  proj-check-rpath
  # autosetup/cc-shared.tcl sets the rpath flag definition in
  # [get-define SH_LINKRPATH], but it does so on a per-platform basis
  # rather than as a compiler check. Though we should do a proper
  # compiler check (as proj-check-rpath does), we may want to consider
  # adopting its approach of clearing the rpath flags for environments
  # for which sqlite-env-is-unix-on-windows returns a non-empty
  # string.


#  if {[proj-opt-truthy rpath]} {
#    proj-check-rpath
#  } else {
#    msg-result "Disabling use of rpath."
#    define LDFLAGS_RPATH ""
#  }

}

########################################################################
# If the --dump-defines configure flag is provided then emit a list of
# all [define] values to config.defines.txt, else do nothing.
proc sqlite-dump-defines {} {
  proj-if-opt-truthy dump-defines {