[Mingw-cross-env-list] make curl failes

[Matthias Gehre]

With current revision from hg repository
'make clean && make curl' fails for me with
../lib/.libs/libcurl.a(ssh.o):ssh.c:(.text+0x2e2): undefined reference
to `_libssh2_sftp_write'
../lib/.libs/libcurl.a(ssh.o):ssh.c:(.text+0x30a): undefined reference
to `_libssh2_session_block_directions'
../lib/.libs/libcurl.a(ssh.o):ssh.c:(.text+0x362): undefined reference
to `_libssh2_sftp_read'
../lib/.libs/libcurl.a(ssh.o):ssh.c:(.text+0x38a): undefined reference
to `_libssh2_session_block_directions'
../lib/.libs/libcurl.a(ssh.o):ssh.c:(.text+0x3ea): undefined reference
to `_libssh2_channel_write_ex'
...
(see attached log)

ls usr/installed/ gives
binutils            gcc      gcc-mpc   gettext  gnutls
libgpg_error  libidn   mingwrt  w32api
check-requirements  gcc-gmp  gcc-mpfr  gmp      libgcrypt  libiconv
  libssh2  nettle   zlib

Is there anything I can provide or do to debug this?

curl
Description: Binary data