The usual way to define `LIBTOOL' is to add `AC_PROG_LIBTOOL'

[estatistics]

Configuring included libhidapi instance with args --prefix=NONE --disable-shared

• autoreconf --install --verbose --force
  autoreconf: Entering directory .' autoreconf: configure.ac: not using Gettext autoreconf: running: aclocal --force -I m4 autoreconf: configure.ac: tracing autoreconf: configure.ac: not using Libtool autoreconf: running: /usr/bin/autoconf --force autoreconf: running: /usr/bin/autoheader --force autoreconf: running: automake --add-missing --copy --force-missing Useless use of /d modifier in transliteration operator at /usr/local/share/automake-1.9/Automake/Wrap.pm line 60. libusb/Makefile.am:11: Libtool library used but LIBTOOL' is undefined
  libusb/Makefile.am:11:
  libusb/Makefile.am:11: The usual way to define LIBTOOL' is to add AC_PROG_LIBTOOL'
  libusb/Makefile.am:11: to configure.ac' and run aclocal' and autoconf' again. libusb/Makefile.am:18: Libtool library used but LIBTOOL' is undefined
  libusb/Makefile.am:18:
  libusb/Makefile.am:18: The usual way to define LIBTOOL' is to add AC_PROG_LIBTOOL'
  libusb/Makefile.am:18: to configure.ac' and run aclocal' and autoconf' again. libusb/Makefile.am:4: Libtool library used but LIBTOOL' is undefined
  libusb/Makefile.am:4:
  libusb/Makefile.am:4: The usual way to define LIBTOOL' is to add AC_PROG_LIBTOOL'
  libusb/Makefile.am:4: to configure.ac' and run aclocal' and autoconf' again. linux/Makefile.am:1: Libtool library used but LIBTOOL' is undefined
  linux/Makefile.am:1:
  linux/Makefile.am:1: The usual way to define LIBTOOL' is to add AC_PROG_LIBTOOL'
  linux/Makefile.am:1: to configure.ac' and run aclocal' and autoconf' again. mac/Makefile.am:1: Libtool library used but LIBTOOL' is undefined
  mac/Makefile.am:1:
  mac/Makefile.am:1: The usual way to define LIBTOOL' is to add AC_PROG_LIBTOOL'
  mac/Makefile.am:1: to configure.ac' and run aclocal' and autoconf' again. /usr/local/share/automake-1.9/am/depend2.am: am__fastdepOBJC does not appear in AM_CONDITIONAL windows/Makefile.am:1: Libtool library used but LIBTOOL' is undefined
  windows/Makefile.am:1:
  windows/Makefile.am:1: The usual way to define LIBTOOL' is to add AC_PROG_LIBTOOL'
  windows/Makefile.am:1: to configure.ac' and run aclocal' and `autoconf' again.
  autoreconf: automake failed with exit status: 1
  config.status: error: Failed to configure embedded libhidapi-1.0 tree

[estatistics]

Fixed... go to openastro-master/ext/libhidapi/
and mkdir m4
and run libtoolize
and run aclocal
and run autoheader