diff --git a/Makefile b/Makefile
index 5b4cac31e..7a7bdff00 100644
--- a/Makefile
+++ b/Makefile
@@ -84,7 +84,7 @@ initial_build_libs_tools:
        if ! ( cd $$dir; ${JMAKE}; ); then exit 1; fi \
      done;
 	@$(foreach dir, $(wildcard tools/*), \
-       ${IF_DIR} ${JMAKE} install; ${ENDIF_DIR})
+       ${IF_DIR} if ! ( ${JMAKE} install; ); then exit 1; fi ${ENDIF_DIR})
 	@cd tutorial; ${JMAKE}
 
 #
diff --git a/configure b/configure
index fdb2062b3..37a803025 100755
--- a/configure
+++ b/configure
@@ -216,5 +216,7 @@ if [[ ! -e libjcore/code/jStringData.h && $1 != package ]]; then
 	chmod u+w libjcore/code/jStringData.h;
 fi
 
-touch libjx/image-build/*;
-touch libjexpr/code/JExprParserY.cpp libjexpr/code/JExprParserY.hpp;
+if [[ $1 != package ]]; then
+	touch libjx/image-build/*;
+	touch libjexpr/code/JExprParserY.cpp libjexpr/code/JExprParserY.hpp;
+fi