--- c_src/Makefile.orig	2018-09-26 08:28:15 UTC
+++ c_src/Makefile
@@ -59,6 +59,13 @@ LD_SHARED	:= $(CC) -shared
 LDFLAGS	        += -lOpenCL
 endif
 
+ifeq ($(OSNAME), FreeBSD)
+LINUX = Yes
+CFLAGS += -O3 -fPIC
+LD_SHARED	:= $(CC) -shared
+LDFLAGS	        += -lOpenCL
+endif
+
 ifeq ($(OSNAME), Darwin)
 MAC_OS_X = Yes
 ifeq ($(WORDSIZE), 32)