libssh missing on macOS/m1
Description of problem:
I did a "git pull" in my source for qemu. Now when I do "make" I get:
../block/ssh.c:27:10: fatal error: 'libssh/libssh.h' file not found

Am I supposed to install libssh separately? I were able to compile qemu about a month ago or so.
Steps to reproduce:
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Additional information: