Need help compiling emacs 27.2

[Ruijie Yu]

Hello,

I was trying to compile emacs 27.2 for some testing, but the build
fails.  I am not sure what I am missing, as this is the first time I
compile Emacs from source manually.  Any hints are appreciated.

What I did:

$ git clone --bare <url> /opt/src/emacs.git
$ cd /opt/src/emacs.git
$ git worktree add ../emacs-27.2 tags/emacs-27.2
$ cd ../emacs-27.2
$ make
...
  CC       sysdep.o
sysdep.c:1821:22: error: variably modified ‘sigsegv_stack’ at file scope
 1821 | static unsigned char sigsegv_stack[SIGSTKSZ];
      |                      ^~~~~~~~~~~~~
make[2]: *** [Makefile:406: sysdep.o] Error 1

See the attachment for full output of `make'.

emacs-27.2-failed.txt
Description: Text document

I suspect my compiler and toolchain are too new, but I don't know where
exactly to look to ascertain that this is the case.  Thanks.

----------------
$ gcc --version
gcc (GCC) 12.2.0
----------------

Best,


RY