Try again with makefile.
@@ -41,7 +41,7 @@ DEBUGGER=gdb
# Some system specifics (for macOS)
UNAME:=$(shell uname -s)
LDCONFIG:=$(shell [ $(UNAME) != Darwin ] && echo "ldconfig")
-CLIBS:="$(CLIBS) $(shell [ $(UNAME) != Darwin ] && echo "-lrt -rdynamic")"
+CLIBS:=$(CLIBS) $(shell [ $(UNAME) != Darwin ] && echo "-lrt -rdynamic")
# Source headers
JANET_GENERATED_HEADERS= \
