Add missing 'static' to game-internal declarations.

Another thing I spotted while trawling the whole source base was that
a couple of games had omitted 'static' on a lot of their internal
functions. Checking with nm, there turned out to be quite a few more
than I'd spotted by eye, so this should fix them all.

Also added one missing 'const', on the lookup table nbits[] in Tracks.

1 files changed, 1 insertions, 1 deletions

diff --git a/bridges.c b/bridges.c
index 7ea7447..d12aa0b 100644
--- a/bridges.c
+++ b/bridges.c
@@ -632,7 +632,7 @@ static bool island_impossible(struct island *is, bool strict)
 
 #define DEFAULT_PRESET 0
 
-const struct game_params bridges_presets[] = {
+static const struct game_params bridges_presets[] = {
   { 7, 7, 2, 30, 10, 1, 0 },
   { 7, 7, 2, 30, 10, 1, 1 },
   { 7, 7, 2, 30, 10, 1, 2 },