Compile boehm gc dynamically for debug

Makefile

@@ -9,9 +9,10 @@ all: vieter
 
 
 # =====COMPILATION=====
-# Regular binary
+# We force the boehm gc to be compiled dynamically because otherwise, our CI
+# build breaks.
 vieter: $(SOURCES)
-	$(V) -g -o vieter $(SRC_DIR)
+	$(V) -d dynamic_boehm -g -o vieter $(SRC_DIR)
 
 # Debug build using gcc
 # The debug build can't use the boehm garbage collector, as that is