1 files changed, 15 insertions, 5 deletions

diff --git a/src/heretic/r_data.c b/src/heretic/r_data.c
index 9846196a..ee005248 100644
--- a/src/heretic/r_data.c
+++ b/src/heretic/r_data.c
@@ -221,7 +221,7 @@ void R_GenerateLookup(int texnum)
 // fill in the lump / offset, so columns with only a single patch are
 // all done
 //
-    patchcount = (byte *) alloca(texture->width);
+    patchcount = (byte *) Z_Malloc(texture->width, PU_STATIC, &patchcount);
     memset(patchcount, 0, texture->width);
     patch = texture->patches;
 
@@ -263,6 +263,8 @@ void R_GenerateLookup(int texnum)
             texturecompositesize[texnum] += texture->height;
         }
     }
+
+    Z_Free(patchcount);
 }
 
 
@@ -322,7 +324,7 @@ void R_InitTextures(void)
     names = W_CacheLumpName("PNAMES", PU_STATIC);
     nummappatches = LONG(*((int *) names));
     name_p = names + 4;
-    patchlookup = alloca(nummappatches * sizeof(*patchlookup));
+    patchlookup = Z_Malloc(nummappatches * sizeof(*patchlookup), PU_STATIC, NULL);
     for (i = 0; i < nummappatches; i++)
     {
         strncpy(name, name_p + i * 8, 8);
@@ -423,6 +425,8 @@ void R_InitTextures(void)
         totalwidth += texture->width;
     }
 
+    Z_Free(patchlookup);
+
     W_ReleaseLumpName("TEXTURE1");
     if (maptex2)
     {
@@ -654,7 +658,7 @@ void R_PrecacheLevel(void)
 //
 // precache flats
 //      
-    flatpresent = alloca(numflats);
+    flatpresent = Z_Malloc(numflats, PU_STATIC, NULL);
     memset(flatpresent, 0, numflats);
     for (i = 0; i < numsectors; i++)
     {
@@ -671,10 +675,12 @@ void R_PrecacheLevel(void)
             W_CacheLumpNum(lump, PU_CACHE);
         }
 
+    Z_Free(flatpresent);
+
 //
 // precache textures
 //
-    texturepresent = alloca(numtextures);
+    texturepresent = Z_Malloc(numtextures, PU_STATIC, NULL);
     memset(texturepresent, 0, numtextures);
 
     for (i = 0; i < numsides; i++)
@@ -700,10 +706,12 @@ void R_PrecacheLevel(void)
         }
     }
 
+    Z_Free(texturepresent);
+
 //
 // precache sprites
 //
-    spritepresent = alloca(numsprites);
+    spritepresent = Z_Malloc(numsprites, PU_STATIC, NULL);
     memset(spritepresent, 0, numsprites);
 
     for (th = thinkercap.next; th != &thinkercap; th = th->next)
@@ -728,4 +736,6 @@ void R_PrecacheLevel(void)
             }
         }
     }
+
+    Z_Free(spritepresent);
 }