diff --git a/libr/anal/p/anal_arm_cs.c b/libr/anal/p/anal_arm_cs.c
index fcf707c5d9..261a8a9ed8 100644
--- a/libr/anal/p/anal_arm_cs.c
+++ b/libr/anal/p/anal_arm_cs.c
@@ -48,15 +48,15 @@
 static const ut64 bitmask_by_width[] = {
 	0x1, 0x3, 0x7, 0xf, 0x1f, 0x3f, 0x7f, 0xff, 0x1ff, 0x3ff, 0x7ff,
 	0xfff, 0x1fff, 0x3fff, 0x7fff, 0xffff, 0x1ffff, 0x3ffff, 0x7ffff,
-	0xfffff, 0x1fffff, 0x3fffff, 0x7fffff, 0xffffff, 0x1ffffffL, 0x3ffffffL,
-	0x7ffffffL, 0xfffffffL, 0x1fffffffL, 0x3fffffffL, 0x7fffffffL, 0xffffffffL,
-	0x1ffffffffL, 0x3ffffffffL, 0x7ffffffffL, 0xfffffffffL, 0x1fffffffffL,
-	0x3fffffffffL, 0x7fffffffffL, 0xffffffffffL, 0x1ffffffffffL, 0x3ffffffffffL,
-	0x7ffffffffffL, 0xfffffffffffL, 0x1fffffffffffL, 0x3fffffffffffL, 0x7fffffffffffL,
-	0xffffffffffffL, 0x1ffffffffffffL, 0x3ffffffffffffL, 0x7ffffffffffffL,
-	0xfffffffffffffL, 0x1fffffffffffffL, 0x3fffffffffffffL, 0x7fffffffffffffL,
-	0xffffffffffffffL, 0x1ffffffffffffffL, 0x3ffffffffffffffL, 0x7ffffffffffffffL,
-	0xfffffffffffffffL, 0x1fffffffffffffffL, 0x3fffffffffffffffL, 0x7fffffffffffffffL, 0xffffffffffffffffL
+	0xfffff, 0x1fffff, 0x3fffff, 0x7fffff, 0xffffff, 0x1ffffffLL, 0x3ffffffLL,
+	0x7ffffffLL, 0xfffffffLL, 0x1fffffffLL, 0x3fffffffLL, 0x7fffffffLL, 0xffffffffLL,
+	0x1ffffffffLL, 0x3ffffffffLL, 0x7ffffffffLL, 0xfffffffffLL, 0x1fffffffffLL,
+	0x3fffffffffLL, 0x7fffffffffLL, 0xffffffffffLL, 0x1ffffffffffLL, 0x3ffffffffffLL,
+	0x7ffffffffffLL, 0xfffffffffffLL, 0x1fffffffffffLL, 0x3fffffffffffLL, 0x7fffffffffffLL,
+	0xffffffffffffLL, 0x1ffffffffffffLL, 0x3ffffffffffffLL, 0x7ffffffffffffLL,
+	0xfffffffffffffLL, 0x1fffffffffffffLL, 0x3fffffffffffffLL, 0x7fffffffffffffLL,
+	0xffffffffffffffLL, 0x1ffffffffffffffLL, 0x3ffffffffffffffLL, 0x7ffffffffffffffLL,
+	0xfffffffffffffffLL, 0x1fffffffffffffffLL, 0x3fffffffffffffffLL, 0x7fffffffffffffffLL, 0xffffffffffffffffLL
 };
 
 static const char *decode_shift(arm_shifter shift) {
diff --git a/libr/asm/arch/dcpu16/dis.c b/libr/asm/arch/dcpu16/dis.c
index 31fe3d0631..b2cf918f67 100644
--- a/libr/asm/arch/dcpu16/dis.c
+++ b/libr/asm/arch/dcpu16/dis.c
@@ -71,7 +71,7 @@ static int instrPrint(char *out, const op* o) {
 	char arg[32], arg2[32];
 	if (o->code.opcode == 0) {
 		valPrint (arg, o->n.a_type, o->n.a);
-		if (o->n.opcode<0 || o->n.opcode>1) {
+		if (o->n.opcode > 1) {
 			strcpy (out, "invalid");
 			return strlen (out);
 		}
diff --git a/mk/gcc.mk b/mk/gcc.mk
index 3b8a09cd44..76f4c868bc 100644
--- a/mk/gcc.mk
+++ b/mk/gcc.mk
@@ -19,6 +19,7 @@ ifeq ($(OSTYPE),darwin)
 ARCH=$(shell uname -m)
 #CFLAGS+=-arch ${ARCH}
 #LDFLAGS+=-arch ${ARCH}
+CFLAGS+=-fno-common
 LDFLAGS_LIB=-dynamiclib
 LDFLAGS_SONAME=-Wl,-install_name,${LIBDIR}/
 else