$ lldb ./test
(lldb) target create "./test"
Current executable set to './test' (x86_64).
(lldb) run
Process 41607 launched: './test' (x86_64)
Loading Guile... Done!
Trying to load "init_guile" Done!
Trying to run "init_guile"
Unloading Guile... Process 41607 stopped
* thread #1: tid = 0x23e40d, 0x000000010003eb70, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10003eb70)
    frame #0: 0x000000010003eb70
error: memory read failed for 0x10003ea00
(lldb) thread backtrace 1
* thread #1: tid = 0x23e40d, 0x000000010003eb70, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x10003eb70)
  * frame #0: 0x000000010003eb70
    frame #1: 0x00007fff5fc01cd3 dyld`dyld::removeImage(ImageLoader*) + 338
    frame #2: 0x00007fff5fc04fbc dyld`dyld::garbageCollectImages() + 823
    frame #3: 0x00007fff5fc0c3e8 dyld`dlclose + 134
    frame #4: 0x00007fff8f195808 libdyld.dylib`dlclose + 61
    frame #5: 0x0000000100000e97 test`main + 279 at test.c:48
    frame #6: 0x00007fff8f1965c9 libdyld.dylib`start + 1