diff --git a/source/audiolib/src/xa.cpp b/source/audiolib/src/xa.cpp
index 1be52ef96..9fb00a806 100644
--- a/source/audiolib/src/xa.cpp
+++ b/source/audiolib/src/xa.cpp
@@ -188,7 +188,7 @@ static void decodeSoundSectMono(XASector *ssct, xa_data * xad)
     }
 
     if (count > xad->blocksize)
-        xad->block = (int8_t *)realloc(xad->block, count);
+        xad->block = (int8_t *)Xrealloc(xad->block, count);
 
     memcpy(xad->block, decodeBuf, count);
     xad->blocksize = count;
@@ -268,7 +268,7 @@ static void decodeSoundSectStereo(XASector *ssct, xa_data * xad)
     }
 
     if (count > xad->blocksize)
-        xad->block = (int8_t *)realloc(xad->block, count);
+        xad->block = (int8_t *)Xrealloc(xad->block, count);
 
     memcpy(xad->block, decodeBuf, count);
     xad->blocksize = count;
@@ -448,7 +448,7 @@ int32_t MV_PlayXA
       return MV_Error;
    }
 
-   xad = (xa_data *) calloc( 1, sizeof(xa_data) );
+   xad = (xa_data *) Xcalloc( 1, sizeof(xa_data) );
    if (!xad) {
       MV_SetErrorCode( MV_InvalidFile );
       return MV_Error;
diff --git a/source/build/src/config.cpp b/source/build/src/config.cpp
index 0c2c0bdf2..0caad1cdd 100644
--- a/source/build/src/config.cpp
+++ b/source/build/src/config.cpp
@@ -255,7 +255,9 @@ int32_t loadsetup(const char *fn)
 
     if (readconfig(fp, "remap", val, VL) > 0)
     {
-        char *p=val; int32_t v1,v2;
+        char *p=val;
+        uint32_t v1,v2;
+
         while (*p)
         {
             if (!sscanf(p,"%x",&v1))break;
diff --git a/source/build/src/scriptfile.cpp b/source/build/src/scriptfile.cpp
index bfcee854b..e3d481829 100644
--- a/source/build/src/scriptfile.cpp
+++ b/source/build/src/scriptfile.cpp
@@ -379,7 +379,7 @@ int32_t scriptfile_getsymbolvalue(char const *name, int32_t *val)
     {
         if (name[0] == '0' && tolower(name[1]) == 'x')  // hex constants
         {
-            int64_t x;
+            uint64_t x;
             sscanf(name + 2, "%" PRIx64 "", &x);
 
             if (EDUKE32_PREDICT_FALSE(x > UINT32_MAX))
diff --git a/source/duke3d/src/cmdline.cpp b/source/duke3d/src/cmdline.cpp
index 08e80b016..2486df4e6 100644
--- a/source/duke3d/src/cmdline.cpp
+++ b/source/duke3d/src/cmdline.cpp
@@ -140,7 +140,7 @@ static void G_AddDemo(const char* param)
         // -d<filename>:<num>[,<num>]
         // profiling options
         *(colon++) = 0;
-        Bsscanf(colon, "%u,%u", &framespertic, &numrepeats);
+        Bsscanf(colon, "%d,%d", &framespertic, &numrepeats);
     }
 
     Demo_SetFirst(tempbuf);
diff --git a/source/duke3d/src/gamedef.cpp b/source/duke3d/src/gamedef.cpp
index 688baabc4..d4e8a3424 100644
--- a/source/duke3d/src/gamedef.cpp
+++ b/source/duke3d/src/gamedef.cpp
@@ -1793,7 +1793,7 @@ static int32_t parse_decimal_number(void)  // (textptr)
 
 static int32_t parse_hex_constant(const char *hexnum)
 {
-    int64_t x;
+    uint64_t x;
     sscanf(hexnum, "%" PRIx64 "", &x);
 
     if (EDUKE32_PREDICT_FALSE(x > UINT32_MAX))
diff --git a/source/duke3d/src/m32def.cpp b/source/duke3d/src/m32def.cpp
index 7b974783c..0b42409ba 100644
--- a/source/duke3d/src/m32def.cpp
+++ b/source/duke3d/src/m32def.cpp
@@ -958,7 +958,7 @@ static int32_t GetGamearrayID(const char *szGameLabel, int32_t searchlocals)
 static int32_t parse_integer_literal(int32_t *num)
 {
     if (textptr[0] == '0' && tolower(textptr[1])=='x')
-        sscanf(textptr+2, "%" SCNx32, num);
+        sscanf(textptr+2, "%" SCNx32, (uint32_t *)&num);
     else
     {
         long lnum;