$ ./run.sh 
+ rm -rf '*.so' '*.o' m1.import.scm m2.import.scm 'src/*.so' src/m1.o src/m2.o
+ tree
.
├── main.scm
├── run.sh
├── src
│   ├── m1.scm
│   └── m2.scm
└── static-build.txt

1 directory, 5 files
+ echo ----------------------------------------
----------------------------------------
+ more run.sh src/m1.scm src/m2.scm main.scm
+ cat
::::::::::::::
run.sh
::::::::::::::
#!/usr/bin/env bash
set -euox pipefail

rm -rf *.so *.o *.import.scm src/*.so src/*.o
tree

echo "----------------------------------------"
more run.sh src/m1.scm src/m2.scm main.scm | cat
echo "----------------------------------------"

csc -c -O3 -J -unit m1 src/m1.scm
csc -c -O3 -J -uses m1 -unit m2 src/m2.scm
tree
csc -static main.scm -uses m1 src/m1.o -uses m2 src/m2.o
./main
::::::::::::::
src/m1.scm
::::::::::::::
(module
 m1 (m1-bar) (import scheme (chicken base))
 (define (m1-bar f) (print "m1-bar called " f) `(list m1-bar ,f)))
::::::::::::::
src/m2.scm
::::::::::::::
(module
 m2
 (m2-macro)
 (import scheme (chicken base))
 (import-for-syntax m1)
 (define-syntax m2-macro
   (ir-macro-transformer (lambda (e inj cmp)
                           (m1-bar (cdr e))))))
::::::::::::::
main.scm
::::::::::::::
(import m2)
(print (m2-macro "hello" "there"))
+ echo ----------------------------------------
----------------------------------------
+ csc -c -O3 -J -unit m1 src/m1.scm
+ csc -c -O3 -J -uses m1 -unit m2 src/m2.scm

Error: (require) cannot load extension: m1

	Call history:

	<syntax>	  (scheme#list)
	<syntax>	  (quote ((m1-bar . m1#m1-bar)))
	<syntax>	  (##core#quote ((m1-bar . m1#m1-bar)))
	<syntax>	  (scheme#list)
	<syntax>	  (scheme#list)
	<eval>	  (##sys#register-compiled-module (quote m1) (quote m1) (scheme#list) (quote ((m1-bar . m1#m1-bar))) (...
	<eval>	  (scheme#list)
	<eval>	  (scheme#list)
	<eval>	  (scheme#list)
	<syntax>	  (##core#begin (##core#require m1 m1#))
	<syntax>	  (##core#require m1 m1#)
	<syntax>	  (chicken.load#load-extension (##core#quote m1) (##core#quote (m1#)) (##core#quote require))
	<syntax>	  (##core#quote m1)
	<syntax>	  (##core#quote (m1#))
	<syntax>	  (##core#quote require)
	<eval>	  (chicken.load#load-extension (##core#quote m1) (##core#quote (m1#)) (##core#quote require))	<--