--- a/components/unzip/Makefile	Wed Apr 20 01:53:37 2011 +0200
+++ b/components/unzip/Makefile	Wed Apr 20 03:15:01 2011 +0200
@@ -39,7 +39,8 @@
 # remove the unwanted file.
 COMPONENT_PREP_ACTION = $(RM) $(SOURCE_DIR)/crc_i386.S
 
-TARGET_ENV +=   "LOCAL_UNZIP=-DUNICODE_SUPPORT"
+COMPONENT_BUILD_ENV += \
+ "LOCAL_UNZIP=-DUNICODE_SUPPORT -DNO_WORKING_ISPRINT -DUNICODE_WCHAR"
 
 # The Makefile we want is under unix/Makefile
 COMPONENT_BUILD_ARGS += -f unix/Makefile