diff --git a/src/Makefile.d/nix.mk b/src/Makefile.d/nix.mk
index aa2e96df7..9adf3f0f1 100644
--- a/src/Makefile.d/nix.mk
+++ b/src/Makefile.d/nix.mk
@@ -25,7 +25,7 @@ endif
 # Tested by Steel, as of release 2.2.8.
 ifdef FREEBSD
 opts+=-I/usr/X11R6/include -DLINUX -DFREEBSD
-libs+=-L/usr/X11R6/lib -lipx -lkvm
+libs+=-L/usr/X11R6/lib -lkvm -lexecinfo
 endif
 
 # FIXME: UNTESTED
diff --git a/src/sdl/i_system.c b/src/sdl/i_system.c
index c60e86a08..902194f4f 100644
--- a/src/sdl/i_system.c
+++ b/src/sdl/i_system.c
@@ -90,7 +90,7 @@ typedef LPVOID (WINAPI *p_MapViewOfFile) (HANDLE, DWORD, DWORD, DWORD, SIZE_T);
 #include <kvm.h>
 #endif
 #include <nlist.h>
-#include <sys/vmmeter.h>
+#include <sys/sysctl.h>
 #endif
 #endif
 
@@ -3033,40 +3033,17 @@ static long get_entry(const char* name, const char* buf)
 size_t I_GetFreeMem(size_t *total)
 {
 #ifdef FREEBSD
-	struct vmmeter sum;
-	kvm_t *kd;
-	struct nlist namelist[] =
-	{
-#define X_SUM   0
-		{"_cnt"},
-		{NULL}
-	};
-	if ((kd = kvm_open(NULL, NULL, NULL, O_RDONLY, "kvm_open")) == NULL)
-	{
-		if (total)
-			*total = 0L;
-		return 0;
-	}
-	if (kvm_nlist(kd, namelist) != 0)
-	{
-		kvm_close (kd);
-		if (total)
-			*total = 0L;
-		return 0;
-	}
-	if (kvm_read(kd, namelist[X_SUM].n_value, &sum,
-		sizeof (sum)) != sizeof (sum))
-	{
-		kvm_close(kd);
-		if (total)
-			*total = 0L;
-		return 0;
-	}
-	kvm_close(kd);
+	u_int v_free_count, v_page_size, v_page_count;
+	size_t size = sizeof(v_free_count);
+	sysctlbyname("vm.stat.vm.v_free_count", &v_free_count, &size, NULL, 0);
+	size_t size = sizeof(v_page_size);
+	sysctlbyname("vm.stat.vm.v_page_size", &v_page_size, &size, NULL, 0);
+	size_t size = sizeof(v_page_count);
+	sysctlbyname("vm.stat.vm.v_page_count", &v_page_count, &size, NULL, 0);
 
 	if (total)
-		*total = sum.v_page_count * sum.v_page_size;
-	return sum.v_free_count * sum.v_page_size;
+		*total = v_page_count * v_page_size;
+	return v_free_count * v_page_size;
 #elif defined (SOLARIS)
 	/* Just guess */
 	if (total)