fix man page generation

libe-book.spec

@@ -62,9 +62,10 @@ sed -i \
     libtool
 make %{?_smp_mflags}
 
-help2man -N -n 'convert e-book into HTML' -o ebook2html.1 ebook2html
-help2man -N -n 'convert e-book into plain text' -o ebook2text.1 ebook2text
-help2man -N -n 'debug the conversion library' -o ebook2raw.1 ebook2raw
+export LD_LIBRARY_PATH=$(pwd)/src/lib${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}
+help2man -N -n 'convert e-book into HTML' -o ebook2html.1 ./src/conv/html/ebook2html
+help2man -N -n 'convert e-book into plain text' -o ebook2text.1 ./src/conv/text/ebook2text
+help2man -N -n 'debug the conversion library' -o ebook2raw.1 ./src/conv/raw/ebook2raw
 
 %install
 make install DESTDIR=%{buildroot}