bug#61988: error compiling emacs

[Ugo Tomei <utomei@tiscali.it>]

Hi guys,

i have a problem during compiling emacs, when i launch "make":

make[3]: uscita dalla directory «/app/emacs/doc/lispref»
   CC       lcms.o
   CC       inotify.o
   CC       profiler.o
   CC       decompress.o
   CC       thread.o
   CC       systhread.o
   CC       sqlite.o
   CC       treesit.o
   CC       itree.o
   CC       xfont.o
   CC       ftfont.o
   CC       ftcrfont.o
   CC       hbfont.o
   CC       fontset.o
   CC       fringe.o
   CC       image.o
   CC       textconv.o
   CC       xgselect.o
   CC       json.o
   CC       terminfo.o
   CC       lastfile.o
   CCLD     temacs
   GEN      ../etc/DOC
/usr/bin/ld: image.o: undefined reference to symbol 'WebPGetInfo'
/usr/bin/ld: /lib/x86_64-linux-gnu/libwebp.so.7: error adding symbols: 
DSO missing from command line
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:705: temacs] Errore 1
make[3]: uscita dalla directory «/app/emacs/src»
make[2]: *** [Makefile:544: src] Errore 2
make[2]: uscita dalla directory «/app/emacs»
make[1]: *** [Makefile:1260: actual-bootstrap] Errore 2
make[1]: uscita dalla directory «/app/emacs»
make[1]: ingresso nella directory «/app/emacs»
***
*** "make bootstrap" failed with exit status 2.
***
*** You could try to:
*** - run "make extraclean" and run "make" again (or, equivalently, run
***   "make bootstrap configure=default"), to rebuild Emacs with the
***   default configuration options, which might fix the problem
*** - run "git clean -fdx" and run "make bootstrap" again, which might
***   fix the problem if "make bootstrap configure=default" did not
***   !BEWARE! "git clean -fdx" deletes all files that are not under
***   !BEWARE! version control, which means that all changes to such
***   !BEWARE! files will be lost and cannot be restored later
*** - run "make V=1", which displays the full commands invoked by make,
***   to further investigate the problem
*** - report the problem and ask for help by sending an email to
***   bug-gnu-emacs@gnu.org, mentioning at least the build error
***   message, the platform, and the repository revision displayed by
***   "git rev-parse HEAD"
***
make[1]: *** [Makefile:414: advice-on-failure] Errore 2
make[1]: uscita dalla directory «/app/emacs»
make: *** [Makefile:1243: bootstrap] Errore 2

Can you help me?

i have reinstalled this package but i have always same error: 
libwebp7:amd64 libwebp7:i386

Best regards