Merge changes I0476a0e0,Ib36051d4 into gingerbread

* changes:
  Fix "Add skip_themes directive to build process"
  Fix compcache
diff --git a/prebuilt/common/bin/compcache b/prebuilt/common/bin/compcache
index 2cd0bde..bb3a349 100755
--- a/prebuilt/common/bin/compcache
+++ b/prebuilt/common/bin/compcache
@@ -24,7 +24,7 @@
       if [ $MODULE = ramzswap ]; then
           rzscontrol $DEV --disksize_kb=$2 --init
       else
-          echo "$((2 * 1024))" > $SYSFS_PATH/disksize
+          echo "$(($2 * 1024))" > $SYSFS_PATH/disksize
           mkswap $DEV >/dev/null
       fi
       swapon $DEV
diff --git a/products/themes.mk b/products/themes.mk
index 00d1045..856ab1f 100644
--- a/products/themes.mk
+++ b/products/themes.mk
@@ -1,7 +1,7 @@
 # Theme packages
 
-ifndef SKIP_THEMES
+ifneq ($(SKIP_THEMES),true)
 PRODUCT_PACKAGES += \
        Androidian \
        Cyanbread
-endif
\ No newline at end of file
+endif