I am trying to build `libxfce4util` from the sources (on libxfce4util@9dd7973fd9dac289f65168f0eb5516a6f91fb392), using this environment variables (also tried without them with the same result): ``` shell export PREFIX=/usr/local export \ CFLAGS="-O2 -pipe" \ PKG_CONFIG_PATH="${PREFIX}/lib/pkgconfig:$PKG_CONFIG_PATH" \ XDG_DATA_DIRS="$PREFIX/share:$XDG_DATA_DIRS" ``` Also i have compiled `xfce4-dev-tools` here ``` shell me@host:~$ ls /usr/local/bin/x* /usr/local/bin/xdt-autogen /usr/local/bin/xfce-build /usr/local/bin/xfce-get-release-notes /usr/local/bin/xfce-update-news /usr/local/bin/xdt-csource /usr/local/bin/xfce-do-release /usr/local/bin/xfce-get-translations me@host:~$ xdt-autogen --version xdt-autogen 4.19.0 ``` When i run ``` shell ./autogen.sh --prefix=${PREFIX} ``` from sources i get this: ``` Running /usr/local/src/libxfce4util/configure --enable-maintainer-mode --prefix=/usr/local... ./configure: line 2717: syntax error near unexpected token `(' ./configure: line 2717: `LIBXFCE4UTIL_VERSION=xdt_version()' ``` Please explain what i do wrong?