build the manual

[fredRos]

I followed the instructions to build the manual with $ cmake .. -DBUILD_MANUAL=true but it doesn't work:

LaTeX Warning: File `fig1.pdf' not found on input line 250.

! Package pdftex.def Error: File `fig1.pdf' not found.

See the pdftex.def package documentation for explanation.
Type  H <return>  for immediate help.
 ...                                              

l.250 \includegraphics[scale=0.5]{fig1.pdf}

? 
! Emergency stop.
 ...                                              

l.250 \includegraphics[scale=0.5]{fig1.pdf}

!  ==> Fatal error occurred, no output PDF file produced!

But entering /doc, then pdflatex manual works, although latex warns about undefined references:

$ pdflatex manual | grep undefined
LaTeX Warning: Reference `fig3' on page 4 undefined on input line 240.