[Gretl-users] about "make pdfdocs"

Dear all, When I build gretl under ubuntu, after updating cvs and ./configure --enable-build-doc, I tried to build the PDF documentation by the following command make pdfdocs However, it responded a missing `appendix.sty' file so that I cannot make it (part of the messages attached below) Did I do anything wrong? Thanks for anyone who can help. Yi-Nung ... Document Class: book 2005/09/16 v1.4f Standard LaTeX document class (/usr/share/texmf-texlive/tex/latex/base/bk10.clo)) (/usr/share/texmf-texlive/tex/latex/ltxmisc/url.sty) (/usr/share/texmf-texlive/tex/latex/tools/verbatim.sty) (/usr/share/texmf-texlive/tex/latex/fancyvrb/fancyvrb.sty Style option: `fancyvrb' v2.6, with DG/SPQR fixes <1998/07/17> (tvz) (/usr/share/texmf-texlive/tex/latex/graphics/keyval.sty) No file fancyvrb.cfg. ) ! LaTeX Error: File `appendix.sty' not found. Type X to quit or <RETURN> to proceed, or enter new name. (Default extension: sty) Enter file name: Configuration: Installation path: /usr/local Use readline library: yes Use gnuplot for graphs: yes Use LaTeX for typesetting output: yes Gnu Multiple Precision support: yes MPFR support: yes openMP support: no Build with GTK version: 2.0 Use GTK printing apparatus: yes Use installed gtksourceview: no Build with gnome support: no Build gretl documentation: yes Use Lucida fonts: no Build message catalogs: yes Gnome installation prefix: NA X-12-ARIMA support: yes TRAMO/SEATS support: yes libR support: yes ODBC support: no Experimental audio support: no LAPACK libraries: -L/usr/lib -llapack -lblas -lgfortran Now type 'make' to build gretl. You can also do 'make pdfdocs' to build the PDF documentation.