diff --git a/build/linux/control b/build/linux/control
new file mode 100644
index 0000000..56e9fb9
--- /dev/null
+++ b/build/linux/control
@@ -0,0 +1,11 @@
+Source: tbftss
+Package: tbftss
+Version: ${version}
+Section: games
+Priority: optional
+Installed-Size: ${size}
+Architecture: i386
+Depends: libsdl2-2.0-0, libsdl2-image-2.0-0, libsdl2-mixer-2.0-0, libsdl2-ttf-2.0-0
+Maintainer: stephenjsweeney@battleforthesolarsystem.com
+Description: 2D mission-based space shooter, based on the Battle for the Solar System space opera novel trilogy. 
+Homepage: www.battleforthesolarsystem.com/games/pw
diff --git a/src/battle/ai.h b/src/battle/ai.h
index 1d1d068..991957a 100644
--- a/src/battle/ai.h
+++ b/src/battle/ai.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 #define AI_EVADE		0
 #define AI_FALLBACK		1
diff --git a/src/battle/battle.h b/src/battle/battle.h
index 68415ac..3b26ef1 100644
--- a/src/battle/battle.h
+++ b/src/battle/battle.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 #define SHOW_BATTLE			0
diff --git a/src/battle/bullets.h b/src/battle/bullets.h
index 7e960dd..5a2841a 100644
--- a/src/battle/bullets.h
+++ b/src/battle/bullets.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 #define TURN_SPEED 				2
diff --git a/src/battle/challenges.h b/src/battle/challenges.h
index 470ce08..03997f8 100644
--- a/src/battle/challenges.h
+++ b/src/battle/challenges.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern Battle battle;
 extern Entity *player;
diff --git a/src/battle/effects.h b/src/battle/effects.h
index 3f22f17..ce9b6b8 100644
--- a/src/battle/effects.h
+++ b/src/battle/effects.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern void blitScaled(SDL_Texture *texture, int x, int y, int w, int h);
 extern SDL_Texture *getTexture(char *name);
diff --git a/src/battle/entities.h b/src/battle/entities.h
index ca7582e..cd4c5c2 100644
--- a/src/battle/entities.h
+++ b/src/battle/entities.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern void blitRotated(SDL_Texture *t, int x, int y, int angle);
 extern void drawFighter(Entity *e);
diff --git a/src/battle/extractionPoint.h b/src/battle/extractionPoint.h
index b24b9dd..73c3b05 100644
--- a/src/battle/extractionPoint.h
+++ b/src/battle/extractionPoint.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern SDL_Texture *getTexture(char *filename);
 extern Entity *spawnEntity(void);
diff --git a/src/battle/fighters.h b/src/battle/fighters.h
index cd5e8f8..872cb33 100644
--- a/src/battle/fighters.h
+++ b/src/battle/fighters.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 extern SDL_Texture *getTexture(char *filename);
diff --git a/src/battle/grid.h b/src/battle/grid.h
index 68f4da4..b817670 100644
--- a/src/battle/grid.h
+++ b/src/battle/grid.h
@@ -18,9 +18,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern Battle battle;
diff --git a/src/battle/hud.h b/src/battle/hud.h
index 5ada754..185738b 100644
--- a/src/battle/hud.h
+++ b/src/battle/hud.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 #define MAX_HUD_MESSAGES	6
 
diff --git a/src/battle/items.h b/src/battle/items.h
index b1ed312..591c304 100644
--- a/src/battle/items.h
+++ b/src/battle/items.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 extern char *readFile(char *filename);
diff --git a/src/battle/messageBox.h b/src/battle/messageBox.h
index 9bcd593..08b0e4d 100644
--- a/src/battle/messageBox.h
+++ b/src/battle/messageBox.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern void drawText(int x, int y, int size, int align, SDL_Color c, const char *format, ...);
 extern void limitTextWidth(int width);
diff --git a/src/battle/missionInfo.h b/src/battle/missionInfo.h
index 042ec34..aac3331 100644
--- a/src/battle/missionInfo.h
+++ b/src/battle/missionInfo.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern void blit(SDL_Texture *texture, int x, int y, int center);
 extern void drawText(int x, int y, int size, int align, SDL_Color c, const char *format, ...);
diff --git a/src/battle/objectives.h b/src/battle/objectives.h
index 1d9eb75..c1a8d81 100644
--- a/src/battle/objectives.h
+++ b/src/battle/objectives.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern void updateChallenges(void);
 extern void addHudMessage(SDL_Color c, char *format, ...);
diff --git a/src/battle/player.h b/src/battle/player.h
index 1d0ece8..6478364 100644
--- a/src/battle/player.h
+++ b/src/battle/player.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 #define MAX_SELECTABLE_PLAYERS	8
 #define MAX_SELECTABLE_TARGETS	8
diff --git a/src/battle/radar.h b/src/battle/radar.h
index fa67306..4a5998e 100644
--- a/src/battle/radar.h
+++ b/src/battle/radar.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern int getDistance(int x1, int y1, int x2, int y2);
 extern void blit(SDL_Texture *texture, int x, int y, int center);
diff --git a/src/battle/rope.h b/src/battle/rope.h
index 93a77dc..0e72f94 100644
--- a/src/battle/rope.h
+++ b/src/battle/rope.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 #define ROPE_DISTANCE	128
 
diff --git a/src/battle/script.h b/src/battle/script.h
index 2c62e35..87fdaec 100644
--- a/src/battle/script.h
+++ b/src/battle/script.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 extern void completeMission(void);
diff --git a/src/battle/starfield.h b/src/battle/starfield.h
index ce53166..d23d5be 100644
--- a/src/battle/starfield.h
+++ b/src/battle/starfield.h
@@ -18,9 +18,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern App app;
diff --git a/src/battle/waypoints.h b/src/battle/waypoints.h
index 4dc3b4b..836e114 100644
--- a/src/battle/waypoints.h
+++ b/src/battle/waypoints.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern SDL_Texture *getTexture(char *filename);
 extern int getDistance(int x1, int y1, int x2, int y2);
diff --git a/src/common.h b/src/common.h
new file mode 100644
index 0000000..a613e83
--- /dev/null
+++ b/src/common.h
@@ -0,0 +1,9 @@
+#include "stdlib.h"
+#include "stdio.h"
+#include "string.h"
+#include "math.h"
+
+#include "SDL2/SDL.h"
+
+#include "defs.h"
+#include "structs.h"
diff --git a/src/draw/draw.h b/src/draw/draw.h
index 41d33cd..0938b44 100644
--- a/src/draw/draw.h
+++ b/src/draw/draw.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern void drawText(int x, int y, int size, int align, SDL_Color c, const char *format, ...);
 extern void drawMouse(void);
diff --git a/src/draw/text.h b/src/draw/text.h
index 0841622..3dd4b70 100644
--- a/src/draw/text.h
+++ b/src/draw/text.h
@@ -18,11 +18,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-#include "SDL2/SDL_ttf.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
+#include "SDL2/SDL_ttf.h"
 
 extern void blit(SDL_Texture *texture, int x, int y, int centered);
 extern char *getFileLocation(char *filename);
diff --git a/src/galaxy/galacticMap.h b/src/galaxy/galacticMap.h
index 51e2cd5..9446948 100644
--- a/src/galaxy/galacticMap.h
+++ b/src/galaxy/galacticMap.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 #define SHOW_GALAXY			0
 #define SHOW_STAR_SYSTEM	1
diff --git a/src/galaxy/mission.h b/src/galaxy/mission.h
index 710f19e..0142960 100644
--- a/src/galaxy/mission.h
+++ b/src/galaxy/mission.h
@@ -18,11 +18,10 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
+
 #include "time.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 extern long lookup(char *name);
diff --git a/src/galaxy/starSystems.h b/src/galaxy/starSystems.h
index 7872b06..fd762c3 100644
--- a/src/galaxy/starSystems.h
+++ b/src/galaxy/starSystems.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 extern char *readFile(char *filename);
diff --git a/src/galaxy/stats.h b/src/galaxy/stats.h
index e277f5c..ec40b8d 100644
--- a/src/galaxy/stats.h
+++ b/src/galaxy/stats.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 #define MAX_STAT_ITEMS 9
 
diff --git a/src/game/game.h b/src/game/game.h
index 56aae6b..aa9c66f 100644
--- a/src/game/game.h
+++ b/src/game/game.h
@@ -18,9 +18,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern Game game;
diff --git a/src/game/title.h b/src/game/title.h
index e2ebb3a..f61da86 100644
--- a/src/game/title.h
+++ b/src/game/title.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 #define NUM_FIGHTERS 12
 
diff --git a/src/plat/unix/unixInit.h b/src/plat/unix/unixInit.h
index 08a6559..ef47643 100644
--- a/src/plat/unix/unixInit.h
+++ b/src/plat/unix/unixInit.h
@@ -23,9 +23,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include <unistd.h>
 #include <errno.h>
 
-#include "SDL2/SDL.h"
-
-#include "../../defs.h"
-#include "../../structs.h"
+#include "../../common.h"
 
 extern App app;
diff --git a/src/system/init.h b/src/system/init.h
index 9db7edb..4ab9fff 100644
--- a/src/system/init.h
+++ b/src/system/init.h
@@ -18,15 +18,14 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
+
+#include "../json/cJSON.h"
+
 #include "SDL2/SDL_image.h"
 #include "SDL2/SDL_mixer.h"
 #include "SDL2/SDL_ttf.h"
 
-#include "../defs.h"
-#include "../structs.h"
-#include "../json/cJSON.h"
-
 extern int fileExists(char *filename);
 extern char *readFile(char *filename);
 extern int writeFile(char *filename, char *data);
diff --git a/src/system/input.h b/src/system/input.h
index 977e4a3..38dcee7 100644
--- a/src/system/input.h
+++ b/src/system/input.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern SDL_Texture *getTexture(char *filename);
 extern void blit(SDL_Texture *texture, int x, int y, int centered);
diff --git a/src/system/io.h b/src/system/io.h
index 99aaeb9..7672fd2 100644
--- a/src/system/io.h
+++ b/src/system/io.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
+
 #include "sys/stat.h"
 
-#include "../defs.h"
-#include "../structs.h"
-
 extern App app;
diff --git a/src/system/load.h b/src/system/load.h
index 91963c4..58c8bbb 100644
--- a/src/system/load.h
+++ b/src/system/load.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 extern char *readFile(char *filename);
diff --git a/src/system/lookup.h b/src/system/lookup.h
index bc5e47d..ffd9495 100644
--- a/src/system/lookup.h
+++ b/src/system/lookup.h
@@ -18,7 +18,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
diff --git a/src/system/options.h b/src/system/options.h
index df93865..eb739e6 100644
--- a/src/system/options.h
+++ b/src/system/options.h
@@ -18,11 +18,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-#include "SDL2/SDL_mixer.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
+#include "SDL2/SDL_mixer.h"
 
 extern void selectWidget(const char *name, const char *group);
 extern Widget *getWidget(const char *name, const char *group);
diff --git a/src/system/save.h b/src/system/save.h
index ea9c63d..7fc90dd 100644
--- a/src/system/save.h
+++ b/src/system/save.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 extern int writeFile(char *filename, char *data);
diff --git a/src/system/sound.h b/src/system/sound.h
index 92f92c4..cfe7339 100644
--- a/src/system/sound.h
+++ b/src/system/sound.h
@@ -18,12 +18,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-#include "SDL2/SDL_mixer.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
-#include "../json/cJSON.h"
+#include "SDL2/SDL_mixer.h"
 
 #define MAX_BATTLE_SOUND_DISTANCE	1500
 
diff --git a/src/system/textures.h b/src/system/textures.h
index 66e64c4..162b7e7 100644
--- a/src/system/textures.h
+++ b/src/system/textures.h
@@ -18,10 +18,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL_image.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
+#include "SDL2/SDL_image.h"
 
 extern char *getFileLocation(char *filename);
 
diff --git a/src/system/transition.h b/src/system/transition.h
index 6ef2cbd..df46a42 100644
--- a/src/system/transition.h
+++ b/src/system/transition.h
@@ -18,10 +18,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
-#include "../structs.h"
+#include "../common.h"
 
 extern void prepareScene(void);
 extern void presentScene(void);
diff --git a/src/system/util.h b/src/system/util.h
index 3ed4016..ffd9495 100644
--- a/src/system/util.h
+++ b/src/system/util.h
@@ -18,6 +18,4 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
-
-#include "../defs.h"
+#include "../common.h"
diff --git a/src/system/widgets.h b/src/system/widgets.h
index 1aa715f..b889086 100644
--- a/src/system/widgets.h
+++ b/src/system/widgets.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 extern void drawText(int x, int y, int size, int align, SDL_Color c, const char *format, ...);
diff --git a/src/test/testMission.h b/src/test/testMission.h
index 98992c5..c4834a0 100644
--- a/src/test/testMission.h
+++ b/src/test/testMission.h
@@ -18,10 +18,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
 */
 
-#include "SDL2/SDL.h"
+#include "../common.h"
 
-#include "../defs.h"
-#include "../structs.h"
 #include "../json/cJSON.h"
 
 extern void initBattle(void);