diff --git a/src/gamecode/creport.c b/src/gamecode/creport.c
index b8b2a975f..4a0e767c8 100644
--- a/src/gamecode/creport.c
+++ b/src/gamecode/creport.c
@@ -1438,7 +1438,7 @@ report_computer(const char *filename, report_context * ctx, const char *charset)
     perror(filename);
     return -1;
   } else if (enc == XML_CHAR_ENCODING_UTF8) {
-    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf };
+    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf, 0 };
     fwrite(utf8_bom, 1, 3, F);
   }
 
diff --git a/src/gamecode/report.c b/src/gamecode/report.c
index 5d635992d..9907dc182 100644
--- a/src/gamecode/report.c
+++ b/src/gamecode/report.c
@@ -1495,7 +1495,7 @@ report_template(const char *filename, report_context * ctx, const char *charset)
   }
 
   if (enc == XML_CHAR_ENCODING_UTF8) {
-    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf };
+    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf, 0 };
     fwrite(utf8_bom, 1, 3, F);
   }
 
@@ -2141,7 +2141,7 @@ report_plaintext(const char *filename, report_context * ctx,
     return -1;
   }
   if (enc == XML_CHAR_ENCODING_UTF8) {
-    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf };
+    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf, 0 };
     fwrite(utf8_bom, 1, 3, F);
   }
 
diff --git a/src/gamecode/summary.c b/src/gamecode/summary.c
index a734eeba4..03690dee7 100644
--- a/src/gamecode/summary.c
+++ b/src/gamecode/summary.c
@@ -149,7 +149,7 @@ void report_summary(summary * s, summary * o, boolean full)
     return;
 #ifdef SUMMARY_BOM
   else {
-    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf };
+    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf, 0 };
     fwrite(utf8_bom, 1, 3, F);
   }
 #endif
diff --git a/src/kernel/battle.c b/src/kernel/battle.c
index 4af7ace44..5c1fa233f 100644
--- a/src/kernel/battle.c
+++ b/src/kernel/battle.c
@@ -3673,7 +3673,7 @@ static battle *make_battle(region * r)
     if (!bdebug)
       log_error(("battles cannot be debugged\n"));
     else {
-      const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf };
+      const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf, 0 };
       fwrite(utf8_bom, 1, 3, bdebug);
       fprintf(bdebug, "In %s findet ein Kampf stattactics:\n", rname(r,
           default_locale));
diff --git a/src/kernel/skill.h b/src/kernel/skill.h
index 8d91aab37..dde1c0721 100644
--- a/src/kernel/skill.h
+++ b/src/kernel/skill.h
@@ -22,7 +22,7 @@ extern "C" {
 #define SMF_RIDING     (1<<2)   /* Bonus für berittene - an der rasse */
 
   typedef struct skill {
-    unsigned int id:8;
+    int id:8;
     unsigned int level:8;
     unsigned int weeks:8;
     unsigned int old:8;
diff --git a/src/kernel/textstore.c b/src/kernel/textstore.c
index 7c12d89be..9fc80f01e 100644
--- a/src/kernel/textstore.c
+++ b/src/kernel/textstore.c
@@ -60,7 +60,7 @@ static int txt_w_flt(struct storage *store, float arg)
 static float txt_r_flt(struct storage *store)
 {
   double result;
-  fscanf((FILE *) store->userdata, "%lf", &result);
+  fscanf((FILE *) store->userdata, "%f", &result);
   return (float)result;
 }
 
@@ -135,7 +135,7 @@ static int txt_open(struct storage *store, const char *filename, int mode)
   FILE *F = fopen(filename, modes[mode]);
   store->userdata = F;
   if (F) {
-    char utf8_bom[4] = { (char)0xef, (char)0xbb, (char)0xbf };
+    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf };
     if (mode == IO_READ) {
       char token[8];
       /* recognize UTF8 BOM */
@@ -154,7 +154,7 @@ static int txt_open(struct storage *store, const char *filename, int mode)
         store->version = atoi(token);
       }
     } else if (store->encoding == XML_CHAR_ENCODING_UTF8) {
-      fputs(utf8_bom, F);
+      fputs((const char*)utf8_bom, F);
       fprintf(F, "%d\n", RELEASE_VERSION);
     }
   }
diff --git a/src/kernel/types.h b/src/kernel/types.h
index 2ec5585f3..866a72cc2 100644
--- a/src/kernel/types.h
+++ b/src/kernel/types.h
@@ -31,10 +31,7 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <util/variant.h>
 
 typedef short terrain_t;
-typedef short direction_t;
-typedef short race_t;
 typedef short magic_t;
-typedef short skill_t;
 typedef short typ_t;
 typedef short item_t;
 typedef unsigned int spellid_t;
@@ -76,8 +73,7 @@ typedef struct ursprung {
 
 /* ----------------- Befehle ----------------------------------- */
 
-typedef unsigned char keyword_t;
-enum {
+typedef enum {
   K_KOMMENTAR,
   K_BANNER,
   K_WORK,
@@ -148,8 +144,8 @@ enum {
   K_PROMOTION,
   K_PAY,
   MAXKEYWORDS,
-  NOKEYWORD = (keyword_t) - 1
-};
+  NOKEYWORD = -1
+} keyword_t;
 
 /* ------------------ Status von Einheiten --------------------- */
 
@@ -165,8 +161,7 @@ enum {
 
 /* ----------------- Parameter --------------------------------- */
 
-typedef unsigned char param_t;
-enum {
+typedef enum {
   P_LOCALE,
   P_ANY,
   P_EACH,
@@ -218,8 +213,8 @@ enum {
   P_XELAEN,
   P_ALLIANCE,
   MAXPARAMS,
-  NOPARAM = (param_t) - 1
-};
+  NOPARAM = -1
+} param_t;
 
 typedef enum {                  /* Fehler und Meldungen im Report */
   MSG_BATTLE,
@@ -268,7 +263,7 @@ enum {
 
 /* ------------------ Talente ---------------------------------- */
 
-enum {
+typedef enum {
   SK_ALCHEMY,
   SK_CROSSBOW,
   SK_MINING,
@@ -299,12 +294,12 @@ enum {
   SK_STAMINA,
   SK_WEAPONLESS,
   MAXSKILLS,
-  NOSKILL = (skill_t) - 1
-};
+  NOSKILL = -1
+} skill_t;
 
 /* ------------- Typ von Einheiten ----------------------------- */
 
-enum {
+typedef enum {
   RC_DWARF,                     /* 0 - Zwerg */
   RC_ELF,
   RC_GOBLIN = 3,
@@ -363,11 +358,11 @@ enum {
   RC_CLONE,
 
   MAXRACES,
-  NORACE = (race_t) - 1
-};
+  NORACE = -1
+} race_t;
 
 /* Richtungen */
-enum {
+typedef enum {
   D_NORTHWEST,
   D_NORTHEAST,
   D_EAST,
@@ -377,8 +372,8 @@ enum {
   MAXDIRECTIONS,
   D_PAUSE,
   D_SPECIAL,
-  NODIRECTION = (direction_t) - 1
-};
+  NODIRECTION = -1
+} direction_t;
 
 #define DONT_HELP      0
 #define HELP_MONEY     1        /* Mitversorgen von Einheiten */
diff --git a/src/lua-bindings.vcxproj b/src/lua-bindings.vcxproj
index 3929ae569..5714a1cbd 100644
--- a/src/lua-bindings.vcxproj
+++ b/src/lua-bindings.vcxproj
@@ -115,9 +115,6 @@
     <ClInclude Include="bindings\bindings.h" />
     <ClInclude Include="bindings\helpers.h" />
   </ItemGroup>
-  <ItemGroup>
-    <None Include="Jamfile" />
-  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
diff --git a/src/lua-bindings.vcxproj.filters b/src/lua-bindings.vcxproj.filters
index cb23911a8..83b65c358 100644
--- a/src/lua-bindings.vcxproj.filters
+++ b/src/lua-bindings.vcxproj.filters
@@ -89,7 +89,4 @@
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>
-  <ItemGroup>
-    <None Include="Jamfile" />
-  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/src/modules/score.c b/src/modules/score.c
index 40c4f8e29..c65dac5d9 100644
--- a/src/modules/score.c
+++ b/src/modules/score.c
@@ -155,7 +155,7 @@ void score(void)
   sprintf(path, "%s/score", basepath());
   scoreFP = fopen(path, "w");
   if (scoreFP) {
-    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf };
+    const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf, 0 };
     faction *f;
     fwrite(utf8_bom, 1, 3, scoreFP);
     for (f = factions; f; f = f->next)
@@ -176,7 +176,7 @@ void score(void)
     sprintf(path, "%s/score.alliances", basepath());
     scoreFP = fopen(path, "w");
     if (scoreFP) {
-      const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf };
+      const unsigned char utf8_bom[4] = { 0xef, 0xbb, 0xbf, 0 };
       fwrite(utf8_bom, 1, 3, scoreFP);
 
       fprintf(scoreFP, "# alliance:factions:persons:score\n");
diff --git a/src/platform.h b/src/platform.h
index b6d201040..cdf87ea37 100644
--- a/src/platform.h
+++ b/src/platform.h
@@ -16,8 +16,6 @@ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 **/
 
-#define _GNU_SOURCE
-
 #ifndef CONFIG_H
 #define CONFIG_H
 
diff --git a/src/util/strings.c b/src/util/strings.c
index ade70fe35..7efa9c032 100644
--- a/src/util/strings.c
+++ b/src/util/strings.c
@@ -30,45 +30,6 @@ INLINE_FUNCTION unsigned int hashstring(const char *s)
   return key & 0x7FFFFFFF;
 }
 
-/*
-static const char *
-escape_string_inplace(char * buffer, unsigned int len, unsigned int offset)
-{
-#define MAXQUOTES 32
-  char * o;
-  char * d[MAXQUOTES+1];
-  int i = 0;
-
-  o = strchr(buffer, '"');
-  if (!o) {
-    return buffer;
-  }
-
-  while (*o && i<MAXQUOTES) {
-    char * next = strchr(o, '"');
-    d[i++] = o;
-    o = next?next:(o+strlen(o));
-  }
-  d[i] = o;
-  if (i<MAXQUOTES) {
-    //  more than 32 hits! must go recursive
-    char * start = d[i];
-    unsigned int nlen = len - (start-buffer) - MAXQUOTES;
-    escape_string_inplace(start, nlen, MAXQUOTES);
-  }
-
-  o[i] = '\0';
-  while (--i>0) {
-    const char * src = d[i];
-    char * dst = d[i] + i + offset;
-    size_t mlen = d[i+1] - d[i];
-    memmove(dst--, src, mlen);
-    *dst = '\\';
-  }
-  return buffer;
-}
-*/
-
 INLINE_FUNCTION const char *escape_string(const char *str, char *buffer,
   unsigned int len)
 {
diff --git a/src/util/unicode.c b/src/util/unicode.c
index ca7d0fbad..33db457e7 100644
--- a/src/util/unicode.c
+++ b/src/util/unicode.c
@@ -68,25 +68,25 @@ int unicode_utf8_tolower(utf8_t * op, size_t outlen, const utf8_t * ip)
 }
 
 int
-unicode_latin1_to_utf8(utf8_t * out, size_t * outlen, const char *in,
+unicode_latin1_to_utf8(utf8_t * dst, size_t * outlen, const char *in,
   size_t * inlen)
 {
   int is = (int)*inlen;
   int os = (int)*outlen;
   const char *ip = in;
-  utf8_t *op = out;
+  unsigned char *out = (unsigned char *)dst, *op = out;
 
   while (ip - in < is) {
     unsigned char c = *ip;
     if (c > 0xBF) {
       if (op - out >= os - 1)
         break;
-      *op++ = (char) 0xC3;
+      *op++ = 0xC3;
       *op++ = c - 64;
     } else if (c > 0x7F) {
       if (op - out >= os - 1)
         break;
-      *op++ = (char) 0xC2;
+      *op++ = 0xC2;
       *op++ = c;
     } else {
       if (op - out >= os)