DragonFlyBSD build fix proposal.

GNUmakefile.gcc_plugin

@@ -56,7 +56,8 @@ ifeq "$(findstring Foundation,$(shell $(CC) --version))" ""
         CXX = g++
 endif
 
-PLUGIN_FLAGS = -fPIC -fno-rtti -I"$(shell $(CC) -print-file-name=plugin)/include"
+PLUGIN_BASE = "$(shell $(CC) -print-file-name=plugin)"
+PLUGIN_FLAGS = -fPIC -fno-rtti -I$(PLUGIN_BASE)/include -I$(PLUGIN_BASE)
 HASH=\#
 
 GCCVER    = $(shell $(CC) --version 2>/dev/null | awk 'NR == 1 {print $$NF}')
@@ -88,6 +89,10 @@ ifeq "$(shell uname -s)" "OpenBSD"
     PLUGIN_FLAGS += -I/usr/local/include
 endif
 
+ifeq "$(shell uname -s)" "DragonFly"
+  	PLUGIN_FLAGS += -I/usr/local/include
+endif
+
 ifeq "$(shell uname -s)" "SunOS"
   	PLUGIN_FLAGS += -I/usr/include/gmp
 endif

include/afl-fuzz.h

@@ -66,6 +66,7 @@
 #include <sched.h>
 
 #include <netdb.h>
+#include <netinet/in.h>
 
 #include <sys/wait.h>
 #include <sys/time.h>

src/afl-fuzz-init.c

@@ -272,7 +272,7 @@ void bind_to_free_cpu(afl_state_t *afl) {
 
     #elif defined(__DragonFly__)
 
-    if (procs[i].kp_lwp.kl_cpuid < sizeof(cpu_used) &&
+    if (procs[i].kp_lwp.kl_cpuid < (s32)sizeof(cpu_used) &&
         procs[i].kp_lwp.kl_pctcpu > 10)
       cpu_used[procs[i].kp_lwp.kl_cpuid] = 1;