3 files changed, 9 insertions, 2 deletions
diff --git a/old-tests/depdb/driver.cxx b/old-tests/depdb/driver.cxx
index b802662..47f99af 100644
--- a/old-tests/depdb/driver.cxx
+++ b/old-tests/depdb/driver.cxx
@@ -10,6 +10,9 @@
 
 #include <libbuild2/depdb.hxx>
 
+#undef NDEBUG
+#include <cassert>
+
 using namespace std;
 using namespace build2;
 
diff --git a/old-tests/lexer/driver.cxx b/old-tests/lexer/driver.cxx
index 588f062..f5e47c3 100644
--- a/old-tests/lexer/driver.cxx
+++ b/old-tests/lexer/driver.cxx
@@ -3,13 +3,15 @@
 
 #include <string>
 #include <vector>
-#include <cassert>
 #include <sstream>
 #include <iostream>
 
 #include <build/token>
 #include <build/lexer>
 
+#undef NDEBUG
+#include <cassert>
+
 using namespace std;
 using namespace build;
 
diff --git a/old-tests/parser/driver.cxx b/old-tests/parser/driver.cxx
index a5b6820..6fb5aee 100644
--- a/old-tests/parser/driver.cxx
+++ b/old-tests/parser/driver.cxx
@@ -1,7 +1,6 @@
 // file      : tests/build/parser/driver.cxx -*- C++ -*-
 // license   : MIT; see accompanying LICENSE file
 
-#include <cassert>
 #include <sstream>
 #include <iostream>
 
@@ -14,6 +13,9 @@
 #include <build/lexer>
 #include <build/parser>
 
+#undef NDEBUG
+#include <cassert>
+
 using namespace std;
 using namespace build;