Verbose output enabled
Found a configure template: ./configure.ac
Preparing the KDTREE 2 build system...please wait

Checking autoreconf version: autoreconf --version
Checking autoconf version: autoconf --version
Found GNU Autoconf version 2.69
Checking if 2.69.0 is greater than 2.52.0
Checking automake version: automake --version
Found GNU Automake version 1.13.4
Checking if 1.13.4 is greater than 1.6.0
Checking libtoolize version: libtoolize --version
Found GNU Libtool version 2.4.2
Checking if 2.4.2 is greater than 2.0.0
Checking aclocal version: aclocal --version
Checking autoheader version: autoheader --version
Checking whether to only output version information
Found an autom4te.cache directory, deleting it
rm -rf autom4te.cache
Detected auxillary directory: config
Detected non-GNU marker "foreign" in configure.ac
mv -f "config/config.guess" "config/config.guess.backup"
mv -f "config/config.sub" "config/config.sub.backup"
mv -f "config/ltmain.sh" "config/ltmain.sh.backup"
Found extra aclocal search directory: m4

Automatically preparing build ... autoreconf  -I m4 -i -f
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `config'.
libtoolize: copying file `config/ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'.
libtoolize: copying file `m4/libtool.m4'
libtoolize: copying file `m4/ltoptions.m4'
libtoolize: copying file `m4/ltsugar.m4'
libtoolize: copying file `m4/ltversion.m4'
libtoolize: copying file `m4/lt~obsolete.m4'
libtoolize: Consider adding `-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
configure.ac:23: installing 'config/config.guess'
configure.ac:23: installing 'config/config.sub'
rm -f "config/config.guess.backup"
rm -f "config/config.sub.backup"
rm -f "config/ltmain.sh.backup"
done

The KDTREE 2 build system is now prepared.  To build here, run:
  ./configure
  make
rm -f "config/config.guess.backup"
rm -f "config/config.sub.backup"
rm -f "config/ltmain.sh.backup"