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-rw-r--r--Makefile.decl3
1 files changed, 3 insertions, 0 deletions
diff --git a/Makefile.decl b/Makefile.decl
index 20ad96d..f93ba04 100644
--- a/Makefile.decl
+++ b/Makefile.decl
@@ -7,6 +7,9 @@ GTESTER_REPORT = gtester-report
EXTRA_DIST =
TEST_PROGS =
+# useful constants
+NULL =
+
### testing rules
# test: run all tests in cwd and subdirs