Re: Failed to compile the emacs latest git master version on Ubuntu 20.10.

[Gregory Heytings]

> On Ubuntu 20.10, I try to compile the emacs latest git master version 
> but meet the following error:
>
> /usr/bin/ld: 
> /usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/libm17n-core.a(mtext-wseg.o):
> undefined reference to symbol 'th_brk@@LIBTHAI_0.1'
> /usr/bin/ld: /lib/x86_64-linux-gnu/libthai.so.0: error adding symbols:
> DSO missing from command line
> collect2: error: ld returned 1 exit status
> make[1]: *** [Makefile:655: temacs] Error 1
> make[1]: Leaving directory '/home/werner/Public/editor/emacs/emacs.git/src'
> make: *** [Makefile:424: src] Error 2
>
> Any hints for fixing this problem?

Your libthai library is apparently not recent enough for your libm17n 
library.  "apt update && apt install libthai0" should fix this.