tmy@phobos egg-tls $ doas chicken-install 
doas (tmy@phobos.bittivirhe.fi) password: 
building tls
   /usr/local/bin/chicken-csc -host -D compiling-extension -J -s -setup-mode -I /home/tmy/git/egg-tls -C -I/home/tmy/git/egg-tls -O3 -d0 -X module-declarations tls.scm -o /home/tmy/git/egg-tls/tls.so
   /usr/local/bin/chicken-csc -setup-mode -static -I /home/tmy/git/egg-tls -emit-link-file /home/tmy/git/egg-tls/tls.link -host -D compiling-extension -c -unit tls -D compiling-static-extension -C -I/home/tmy/git/egg-tls -O3 -d0 -X module-declarations tls.scm -o /home/tmy/git/egg-tls/tls.static.o
   /usr/local/bin/chicken-csc -setup-mode -s -host -I /home/tmy/git/egg-tls -C -I/home/tmy/git/egg-tls -O3 -d0 -X module-declarations tls.import.scm -o /home/tmy/git/egg-tls/tls.import.so
  installing tls
tmy@phobos egg-tls $ chicken-csi          
CHICKEN
(c) 2008-2018, The CHICKEN Team
(c) 2000-2007, Felix L. Winkelmann
Version 5.0.0 (rev 12f2f2cc)
openbsd-unix-clang-x86-64 [ 64bit dload ]

; loading /home/tmy/.csirc ...
; loading /usr/local/lib/chicken/9/linenoise.import.so ...
; loading /usr/local/lib/chicken/9/linenoise.so ...
#;1> (import tls)
; loading /usr/local/lib/chicken/9/tls.import.so ...
; loading /usr/local/lib/chicken/9/tls.so ...
#;2> (tls-init!)
chicken-csi:/usr/local/lib/chicken/9/tls.so: undefined symbol 'tls_init'
ld.so: chicken-csi: lazy binding failed!
Killed