diff --git a/Makefile.mac b/Makefile.mac
index 502e79c5..46847ecf 100644
--- a/Makefile.mac
+++ b/Makefile.mac
@@ -6,7 +6,8 @@
 # Run "brew install sdl_ttf".
 # Run "make -f Makefile.mac" to build HyperRogue as ./hyper.
 
-CXXFLAGS += -std=c++11 -DMAC
+CXXFLAGS += -std=c++11 -march=native -DMAC
+# CXXFLAGS += -DCAP_ROGUEVIZ
 CXXFLAGS += -W -Wall -Wextra -pedantic
 CXXFLAGS += -Wno-format-pedantic -Wno-unused-parameter -Wno-char-subscripts -Wno-missing-field-initializers -Wno-vla-extension
 CXXFLAGS += ${EXTRA_CXXFLAGS}
@@ -19,7 +20,7 @@ hyper: hyper.o
 hyper.o: *.cpp language-data.cpp
 	$(CXX) $(CXXFLAGS) -O2 -c hyper.cpp
 
-langen: langen.cpp
+langen: langen.cpp language-??.cpp language-ptbr.cpp
 	$(CXX) $(CXXFLAGS) -O0 -Wno-embedded-directive langen.cpp -o langen
 
 # Generation of language-data.cpp
diff --git a/game.cpp b/game.cpp
index 8c0e47eb..2f5ecdc2 100644
--- a/game.cpp
+++ b/game.cpp
@@ -1157,8 +1157,6 @@ bool outlawNearby(cell *c, int dist) {
   return false;
   }
 
-// int monstersnear(cell *c, cell *nocount = NULL, eMonster who = moPlayer, cell *pushto = NULL) {
-
 namespace stalemate {
   vector<stalemate1> moves;
   bool  nextturn;
@@ -1197,12 +1195,12 @@ eMonster active_switch() {
 
 vector<cell*> crush_now, crush_next;
   
-int monstersnear(stalemate1& sm) {
+bool monstersnear(stalemate1& sm) {
 
   cell *c = sm.moveto;
   bool eaten = false;
 
-  if(hardcore && sm.who == moPlayer) return 0;
+  if(hardcore && sm.who == moPlayer) return false;
 
   int res = 0;
   bool fast = false;
@@ -1286,12 +1284,12 @@ int monstersnear(stalemate1& sm) {
   if(sm.who == moPlayer && res && markOrb2(itOrbDomination) && c->monst)
     res = 0;
 
-  return res;
+  return !!res;
   }
 
 namespace multi { bool aftermove; }
 
-int monstersnear2();
+bool monstersnear2();
 
 int lastkills;
 
@@ -1324,9 +1322,9 @@ bool swordConflict(const stalemate1& sm1, const stalemate1& sm2) {
   return false;
   }
 
-int monstersnear2() {
+bool monstersnear2() {
   multi::cpid++;
-  int b = 0;
+  bool b = false;
   bool recorduse[ittypes];
   for(int i=0; i<ittypes; i++) recorduse[i] = orbused[i];
   if(multi::cpid == multi::players || multi::players == 1 || multi::checkonly) {
@@ -1355,13 +1353,13 @@ int monstersnear2() {
     for(int i=0; i<size(stalemate::moves); i++)
     for(int j=0; j<size(stalemate::moves); j++) if(i != j) {
       if(swordConflict(stalemate::moves[i], stalemate::moves[j])) {
-          b = 1;
+          b = true;
           which = moEnergySword;
           }
       if(multi::player[i].c == multi::player[j].c) 
-        { b = 1; which = moFireball; }
+        { b = true; which = moFireball; }
       if(celldistance(multi::player[i].c, multi::player[j].c) > 8) 
-        { b = 1; which = moAirball; }
+        { b = true; which = moAirball; }
       }
 
     for(int i=0; !b && i<size(stalemate::moves); i++)
@@ -1373,7 +1371,7 @@ int monstersnear2() {
   return b;
   }
 
-int monstersnear(cell *c, cell *nocount, eMonster who, cell *pushto, cell *comefrom) {
+bool monstersnear(cell *c, cell *nocount, eMonster who, cell *pushto, cell *comefrom) {
 
   if(peace::on) return 0; // you are safe
 
@@ -1415,7 +1413,7 @@ int monstersnear(cell *c, cell *nocount, eMonster who, cell *pushto, cell *comef
   
   // dynamicval<eMonster> x7(stalemate::who, who);
   
-  int b;
+  bool b;
   if(who == moPlayer && c->wall == waBigStatue) {
     eWall w = comefrom->wall;
     c->wall = waNone;
diff --git a/orbs.cpp b/orbs.cpp
index b273b040..c95eb9df 100644
--- a/orbs.cpp
+++ b/orbs.cpp
@@ -947,12 +947,12 @@ void useOrbOfDragon(cell *c) {
   checkmoveO();
   }
 
-int monstersnearO(orbAction a, cell *c, cell *nocount, eMonster who, cell *pushto, cell *comefrom) {
+bool monstersnearO(orbAction a, cell *c, cell *nocount, eMonster who, cell *pushto, cell *comefrom) {
   // printf("[a = %d] ", a);
-  if(shmup::on) return 0;
+  if(shmup::on) return false;
   if(a == roCheck && multi::players > 1) 
-    return 1;
-  else if(a == roMultiCheck) return 0;
+    return true;
+  else if(a == roMultiCheck) return false;
   else return monstersnear(c, nocount, who, pushto, comefrom);
   }