安装xpdf时，出错

reka_wolf

make install xpdf时，出现以下错误：

===>  Installing for zh-xpdf-20040727_3

===>   zh-xpdf-20040727_3 depends on executable: xpdf - not found

===>    Verifying install for xpdf in /usr/ports/graphics/xpdf

===>   xpdf-3.02_5 depends on executable: freetype-config - found

===>   xpdf-3.02_5 depends on executable: gmake - found
===>   xpdf-3.02_5 depends on file: /usr/local/bin/autoconf-2.61 - not found

===>    Verifying install for /usr/local/bin/autoconf-2.61 in /usr/ports/devel/autoconf26
1
===>   autoconf-2.61_2 depends on executable: gm4 - found

===>   autoconf-2.61_2 depends on executable: help2man - not found

===>    Verifying install for help2man in /usr/ports/misc/help2man
===>   help2man-1.36.4_1 depends on file: /usr/local/lib/perl5/site_perl/5.8.8/mach/Locale/gettext.pm - not found

===>    Verifying install for /usr/local/lib/perl5/site_perl/5.8.8/mach/Locale/gettext.pm in /usr/ports/devel/p5-Locale-gettext
===>  Building for p5-gettext-1.05_1

*** Error code 127

Stop in /usr/ports/devel/p5-Locale-gettext/work/gettext-1.05.

** Error code 1

Stop in /usr/ports/devel/p5-Locale-gettext.

*** Error code 1

Stop in /usr/ports/misc/help2man.

*** Error code 1

Stop in /usr/ports/devel/autoconf261.

*** Error code 1

Stop in /usr/ports/graphics/xpdf.

*** Error code 1

Stop in /usr/ports/chinese/xpdf.

*** Error code 1

Stop in /usr/ports/chinese/xpdf.


这怎么解决？