make gnumeric失败 特请教原因

boiyoo

显示如下：
libgsf-gnome-1 >= 1.7.2) not met; consider adjusting the PKG_CONFIG_PATH environment variable if your libraries are in a nonstandard prefix so pkg-config can find them.
===>  Script "configure" failed unexpectedly.
      Please report the problem to gnome@FreeBSD.org [maintainer] and attach
      the "/usr/ports/math/gnumeric2/work/gnumeric-1.1.19/config.log" including
      the output of the failure of your make command. Also, it might be a
      good idea to provide an overview of all packages installed on your
      system (e.g. an `ls /var/db/pkg`).
*** Error code 1
28