Index: include/package.mk
===================================================================
--- include/package.mk  (révision 4116)
+++ include/package.mk  (copie de travail)
@@ -292,6 +292,16 @@
                mkdir -p $(DL_DIR)
                $(SCRIPT_DIR)/download.pl "$(DL_DIR)" "$(PKG_SOURCE)" "$(PKG_MD5SUM)" $(PKG_SOURCE_URL)

+  ifeq($$(shell file -bi $(DL_DIR)/$(PKG_SOURCE) | cut -d\/ -f2),x-zip)
+    PKG_CAT=unzip
+  else
+    ifeq($$(shell file -bi $(DL_DIR)/$(PKG_SOURCE) | cut -d\/ -f2),x-gzip)
+     PKG_CAT=zcat
+   else
+     PKG_CAT=bzcat
+   endif
+  endif
+
     $(PKG_BUILD_DIR)/.prepared: $(DL_DIR)/$(PKG_SOURCE)
   endif