diff -ur ./original/flex-2.5.35/debian/local.mk ../build_dir-all/flex/debian/local.mk
--- ./original/flex-2.5.35/debian/local.mk	2011-08-17 10:44:49.000000000 +0000
+++ ../build_dir-all/flex/debian/local.mk	2011-08-11 18:10:58.000000000 +0000
@@ -52,8 +52,13 @@
            fi;                                                             \
         fi
 	WARNINGS=none autoreconf --warnings=none -f -i 
+ifeq ($(DEB_HOST_GNU_TYPE),$(DEB_BUILD_GNU_TYPE))
 	ac_cv_lib_util_getloadavg=no ./configure   --verbose           \
                 --prefix=$(PREFIX) $(confflags)
+else
+	ac_cv_func_malloc_0_nonnull=yes	ac_cv_func_realloc_0_nonnull=yes ac_cv_lib_util_getloadavg=no ./configure   --verbose     \
+                --prefix=$(PREFIX) $(confflags)
+endif
 	@echo done > $@
 
 debian/stamp/build/flex: