diff --git a/auto/lib/zlib/make b/auto/lib/zlib/make
index 00b08bb..c442730 100644
--- a/auto/lib/zlib/make
+++ b/auto/lib/zlib/make
@@ -3,10 +3,18 @@
 
     cl)
         makefile=makefile.msvc
+        opt="CPU_OPT=$CPU_OPT LIBC=$LIBC"
+
     ;;
 
     wcl386)
         makefile=makefile.owc
+        opt="CPU_OPT=$CPU_OPT"
+    ;;
+
+    bcc32)
+        makefile=makefile.bcc
+        opt="-DCPU_OPT=$CPU_OPT"
     ;;
 
 esac
@@ -15,7 +23,8 @@
 case $PLATFORM in
 
     win32)
-        echo "$ZLIB/zlib.lib:"                                    >> $MAKEFILE
+        line=`echo $ZLIB/zlib.lib: | sed -e "s/\//$DIRSEP/g"`
+        echo "$line"                                              >> $MAKEFILE
     ;;
 
     *)
@@ -31,10 +40,11 @@
 case $PLATFORM in
 
     win32)
+        zlib=`echo $ZLIB | sed -e "s/\//$DIRSEP/g"`
 
         cp auto/lib/zlib/$makefile $ZLIB
-        echo "	cd $ZLIB"                                         >> $MAKEFILE
-        echo "	\$(MAKE) -f $makefile CPU_OPT=$CPU_OPT LIBC=$LIBC">> $MAKEFILE
+        echo "	cd $zlib"                                         >> $MAKEFILE
+        echo "	\$(MAKE) -f $makefile $opt"                       >> $MAKEFILE
         echo "	cd ..\\..\\.."                                    >> $MAKEFILE
 
         done=YES