Compilation went fine, but after 'sudo make install', I get the following:

Making install in tools
make[1]: Entering directory `/home/jeroen/telepathy-yafono/tools'
make[2]: Entering directory `/home/jeroen/telepathy-yafono/tools'
make[2]: Nothing to be done for `install-exec-am'.
make[2]: Nothing to be done for `install-data-am'.
make[2]: Leaving directory `/home/jeroen/telepathy-yafono/tools'
make[1]: Leaving directory `/home/jeroen/telepathy-yafono/tools'
Making install in src
make[1]: Entering directory `/home/jeroen/telepathy-yafono/src'
make  install-am
make[2]: Entering directory `/home/jeroen/telepathy-yafono/src'
make[3]: Entering directory `/home/jeroen/telepathy-yafono/src'
test -z "/usr/local/libexec" || /bin/mkdir -p "/usr/local/libexec"
  /bin/bash ../libtool   --mode=install /usr/bin/install -c telepathy-yafono '/usr/local/libexec'
libtool: install: /usr/bin/install -c telepathy-yafono /usr/local/libexec/telepathy-yafono
test -z "_gen" || /bin/mkdir -p "_gen"
 /usr/bin/install -c -m 644 _gen/gtypes.h _gen/ofono-enums.h _gen/register-dbus-glib-marshallers-body.h _gen/signals-marshal.h _gen/signals-marshal.c _gen/ofono-cli-modem.h _gen/ofono-cli-manager.h _gen/interfaces.h '_gen'
/usr/bin/install: `_gen/gtypes.h' and `_gen/gtypes.h' are the same file
/usr/bin/install: `_gen/ofono-enums.h' and `_gen/ofono-enums.h' are the same file
/usr/bin/install: `_gen/register-dbus-glib-marshallers-body.h' and `_gen/register-dbus-glib-marshallers-body.h' are the same file
/usr/bin/install: `_gen/signals-marshal.h' and `_gen/signals-marshal.h' are the same file
/usr/bin/install: `_gen/signals-marshal.c' and `_gen/signals-marshal.c' are the same file
/usr/bin/install: `_gen/ofono-cli-modem.h' and `_gen/ofono-cli-modem.h' are the same file
/usr/bin/install: `_gen/ofono-cli-manager.h' and `_gen/ofono-cli-manager.h' are the same file
/usr/bin/install: `_gen/interfaces.h' and `_gen/interfaces.h' are the same file
make[3]: *** [install-nodist_genincludeHEADERS] Error 1
make[3]: Leaving directory `/home/jeroen/telepathy-yafono/src'
make[2]: *** [install-am] Error 2
make[2]: Leaving directory `/home/jeroen/telepathy-yafono/src'
make[1]: *** [install] Error 2
make[1]: Leaving directory `/home/jeroen/telepathy-yafono/src'
make: *** [install-recursive] Error 1