diff --git a/polymer/eduke32/build/src/build.c b/polymer/eduke32/build/src/build.c
index 1d1dde85a..4b8c19a58 100644
--- a/polymer/eduke32/build/src/build.c
+++ b/polymer/eduke32/build/src/build.c
@@ -10747,7 +10747,7 @@ static void AlignWalls_(int32_t tilenum, int32_t z0, int32_t z1, int32_t doxpann
     if (doxpanning)
         wall[w1_pan].xpanning = (uint8_t)((wall[w0_pan].xpanning + (wall[w0_rep].xrepeat<<3))%tilesiz[tilenum].x);
 
-    for (n=picsiz[tilenum]>>4; (1<<n)<tilesiz[tilenum].y; n++);
+    for (n=picsiz[tilenum]>>4; (1<<n)<tilesiz[tilenum].y; n++) { }
 
     wall[w1_rep].yrepeat = wall[w0_rep].yrepeat;
     wall[w1_pan].ypanning = (uint8_t)(wall[w0_pan].ypanning + (((z1-z0)*wall[w0_rep].yrepeat)>>(n+3)));
diff --git a/polymer/eduke32/build/src/cache1d.c b/polymer/eduke32/build/src/cache1d.c
index 1b01492fe..6deeedc5d 100644
--- a/polymer/eduke32/build/src/cache1d.c
+++ b/polymer/eduke32/build/src/cache1d.c
@@ -411,7 +411,7 @@ int32_t addsearchpath_user(const char *p, int32_t user)
     srch->path    = (char *)Xmalloc(srch->pathlen + 1);
 
     Bstrcpy(srch->path, path);
-    for (s=srch->path; *s; s++);
+    for (s=srch->path; *s; s++) { }
     s--;
 
     if (s<srch->path || toupperlookup[*s] != '/')
@@ -442,7 +442,7 @@ int32_t removesearchpath(const char *p)
     if (path[Bstrlen(path)-1] == '\\')
         path[Bstrlen(path)-1] = 0;
 
-    for (s=path; *s; s++);
+    for (s=path; *s; s++) { }
     s--;
 
     if (s<path || toupperlookup[*s] != '/')
@@ -555,7 +555,7 @@ int32_t findfrompath(const char *fn, char **where)
 
     char const *cpfn;
 
-    for (cpfn = fn; toupperlookup[*cpfn] == '/'; cpfn++);
+    for (cpfn = fn; toupperlookup[*cpfn] == '/'; cpfn++) { }
     char *ffn = Xstrdup(cpfn);
 
     Bcorrectfilename(ffn,0);	// compress relative paths
@@ -1030,7 +1030,7 @@ static int32_t kopen_internal(const char *filename, char **lastpfn, char searchf
         return newhandle;
     }
 
-    for (; toupperlookup[*filename] == '/'; filename++);
+    for (; toupperlookup[*filename] == '/'; filename++) { }
 
 #ifdef WITHKPLIB
     if (tryzip)
diff --git a/polymer/eduke32/build/src/engine.c b/polymer/eduke32/build/src/engine.c
index ab98d1224..56b515784 100644
--- a/polymer/eduke32/build/src/engine.c
+++ b/polymer/eduke32/build/src/engine.c
@@ -3129,11 +3129,11 @@ static inline int32_t bunchfront(int32_t b1, int32_t b2)
 
     if (x1b1 >= x1b2)
     {
-        for (; xb2[b2f] < x1b1; b2f = bunchp2[b2f]);
+        for (; xb2[b2f] < x1b1; b2f = bunchp2[b2f]) { }
         return wallfront(b1f, b2f);
     }
 
-    for (; xb2[b1f] < x1b2; b1f = bunchp2[b1f]);
+    for (; xb2[b1f] < x1b2; b1f = bunchp2[b1f]) { }
     return wallfront(b1f, b2f);
 }
 
diff --git a/polymer/eduke32/build/src/mdsprite.c b/polymer/eduke32/build/src/mdsprite.c
index afd2f7265..30a1757f9 100644
--- a/polymer/eduke32/build/src/mdsprite.c
+++ b/polymer/eduke32/build/src/mdsprite.c
@@ -621,8 +621,8 @@ static int32_t daskinloader(int32_t filh, intptr_t *fptr, int32_t *bpl, int32_t
 
     if (!glinfo.texnpot)
     {
-        for (xsiz=1; xsiz<tsizx; xsiz+=xsiz);
-        for (ysiz=1; ysiz<tsizy; ysiz+=ysiz);
+        for (xsiz=1; xsiz<tsizx; xsiz+=xsiz) { }
+        for (ysiz=1; ysiz<tsizy; ysiz+=ysiz) { }
     }
     else
     {
diff --git a/polymer/eduke32/build/src/polymost.c b/polymer/eduke32/build/src/polymost.c
index 02469866f..60f1da7a6 100644
--- a/polymer/eduke32/build/src/polymost.c
+++ b/polymer/eduke32/build/src/polymost.c
@@ -798,8 +798,8 @@ void gloadtile_art(int32_t dapic, int32_t dapal, int32_t tintpalnum, int32_t das
 
     if (!glinfo.texnpot)
     {
-        for (siz.x = 1; siz.x < tsiz.x; siz.x += siz.x);
-        for (siz.y = 1; siz.y < tsiz.y; siz.y += siz.y);
+        for (siz.x = 1; siz.x < tsiz.x; siz.x += siz.x) { }
+        for (siz.y = 1; siz.y < tsiz.y; siz.y += siz.y) { }
     }
     else
     {
@@ -1060,8 +1060,8 @@ int32_t gloadtile_hi(int32_t dapic,int32_t dapalnum, int32_t facen, hicreplctyp
 
         if (!glinfo.texnpot)
         {
-            for (siz.x=1; siz.x<tsiz.x; siz.x+=siz.x);
-            for (siz.y=1; siz.y<tsiz.y; siz.y+=siz.y);
+            for (siz.x=1; siz.x<tsiz.x; siz.x+=siz.x) { }
+            for (siz.y=1; siz.y<tsiz.y; siz.y+=siz.y) { }
         }
         else
             siz = tsiz;
@@ -3396,11 +3396,11 @@ static int32_t polymost_bunchfront(const int32_t b1, const int32_t b2)
 
     if (x1b1 >= x1b2)
     {
-        for (; dxb2[b2f]<=x1b1; b2f=bunchp2[b2f]);
+        for (; dxb2[b2f]<=x1b1; b2f=bunchp2[b2f]) { }
         return wallfront(b1f, b2f);
     }
 
-    for (; dxb2[b1f]<=x1b2; b1f=bunchp2[b1f]);
+    for (; dxb2[b1f]<=x1b2; b1f=bunchp2[b1f]) { }
     return wallfront(b1f, b2f);
 }
 
@@ -3513,7 +3513,7 @@ void polymost_scansector(int32_t sectnum)
         for (int z=bunchfrst; z<numbunches; z++)
         {
             int zz;
-            for (zz=bunchfirst[z]; bunchp2[zz]>=0; zz=bunchp2[zz]);
+            for (zz=bunchfirst[z]; bunchp2[zz]>=0; zz=bunchp2[zz]) { }
             bunchlast[z] = zz;
         }
     }
diff --git a/polymer/eduke32/build/src/scriptfile.c b/polymer/eduke32/build/src/scriptfile.c
index a867d02ff..a28370cef 100644
--- a/polymer/eduke32/build/src/scriptfile.c
+++ b/polymer/eduke32/build/src/scriptfile.c
@@ -192,7 +192,7 @@ int32_t scriptfile_getlinum(const scriptfile *sf, const char *ptr)
 
     ind = ((intptr_t)ptr) - ((intptr_t)sf->textbuf);
 
-    for (stp=1; stp+stp<sf->linenum; stp+=stp); //stp = highest power of 2 less than sf->linenum
+    for (stp=1; stp+stp<sf->linenum; stp+=stp) { } //stp = highest power of 2 less than sf->linenum
     for (i=0; stp; stp>>=1)
         if ((i+stp < sf->linenum) && (sf->lineoffs[i+stp] < ind)) i += stp;
     return(i+1); //i = index to highest lineoffs which is less than ind; convert to 1-based line numbers
@@ -337,7 +337,7 @@ static char *getsymbtabspace(int32_t reqd)
 
     if (symbtablength + reqd > symbtaballoclength)
     {
-        for (i=max(symbtaballoclength,SYMBTABSTARTSIZE); symbtablength+reqd>i; i<<=1);
+        for (i=max(symbtaballoclength,SYMBTABSTARTSIZE); symbtablength+reqd>i; i<<=1) { }
         np = (char *)Xrealloc(symbtab, i);
         symbtab = np; symbtaballoclength = i;
     }
diff --git a/polymer/eduke32/source/m32def.c b/polymer/eduke32/source/m32def.c
index efb1aa9d1..6fd9de8ee 100644
--- a/polymer/eduke32/source/m32def.c
+++ b/polymer/eduke32/source/m32def.c
@@ -3741,7 +3741,7 @@ void C_Compile(const char *filenameortext, int32_t isfilename)
 
     Bmemcpy(&cs, &cs_default, sizeof(compilerstate_t));
 
-    while (C_ParseCommand() == 0);
+    while (C_ParseCommand() == 0) { }
 
 //    flushlogwindow = 1;