pdf does not build anymore

Hello,

Today the PDF-build (A4) stopped working (see below
for error).

Are others seeing that too?

I have built this PDF from HEAD almost daily, so
the setup used to be 'good enough'. But perhaps
the slow but steady growth of the manual has reached
some maximum here?

(The "Overfull \hbox"output is not fatal, I just
included it in case it has some info)

Overfull \hbox (1.59999pt too wide) in alignment at lines 232726--233114
[] [] []
[243.0.27
! pdfTeX error (ext4): \pdfendlink ended up in different nesting level than \pd
fstartlink.
<to be read again>
\endgroup \set(at)typeset@protect
l.233408 ...esult in a run-\/time lookup.\endPar{}
\endNode{}\endDisplayGroup...

! ==> Fatal error occurred, the output PDF file is not finished!
Transcript written on postgres-A4.log.
make: *** [postgres-A4.pdf] Error 1
make: *** Deleting file `postgres-A4.pdf'
rm postgres-A4.tex-pdf

And some extra info which may or may not be useful in debugging this:

Here is how much of TeX's memory you used:
21996 strings out of 246516
173166 string characters out of 1824731
211860 words of memory out of 1000000
24272 multiletter control sequences out of 10000+200000
79955 words of font info for 129 fonts, out of 500000 for 2000
580 hyphenation exceptions out of 1000
28i,12n,43p,307b,1346s stack positions out of 1500i,500n,5000p,200000b,15000s
PDF statistics:
18163 PDF objects out of 300000
10831 named destinations out of 131072
1 words of extra memory for PDF output out of 65536
! ==> Fatal error occurred, the output PDF file is not finished!

Thanks,

Erik Rijkers