Internal checking is now enabled by the macro CHECK_INTERNAL

lib/checkinternal.cpp

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef NDEBUG
+#ifdef CHECK_INTERNAL
 
 #include "checkinternal.h"
 #include "symboldatabase.h"
@@ -315,4 +315,4 @@ void CheckInternal::redundantNextPreviousError(const Token* tok, const std::stri
                 "Call to 'Token::" + func1 + "()' followed by 'Token::" + func2 + "()' can be simplified.");
 }
 
-#endif // #ifndef NDEBUG
+#endif // #ifdef CHECK_INTERNAL

lib/settings.cpp

@@ -84,7 +84,7 @@ std::string Settings::addEnabled(const std::string &str)
         id.insert("information");
         id.insert("missingInclude");
         id.insert("unusedFunction");
-#ifndef NDEBUG
+#ifdef CHECK_INTERNAL
         id.insert("internal");
 #endif
     }

test/testcmdlineparser.cpp

@@ -71,7 +71,7 @@ private:
         TEST_CASE(enabledPortability);
         TEST_CASE(enabledUnusedFunction);
         TEST_CASE(enabledMissingInclude);
-#ifndef NDEBUG
+#ifdef CHECK_INTERNAL
         TEST_CASE(enabledInternal);
 #endif
         TEST_CASE(enabledMultiple);
@@ -516,7 +516,7 @@ private:
         ASSERT(settings.isEnabled("missingInclude"));
     }
 
-#ifndef NDEBUG
+#ifdef CHECK_INTERNAL
     void enabledInternal() {
         REDIRECT;
         const char *argv[] = {"cppcheck", "--enable=internal", "file.cpp"};

test/testinternal.cpp

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef NDEBUG
+#ifdef CHECK_INTERNAL
 
 #include "tokenize.h"
 #include "checkinternal.h"
@@ -340,4 +340,4 @@ private:
 
 REGISTER_TEST(TestInternal)
 
-#endif // #ifndef NDEBUG
+#endif // #ifdef CHECK_INTERNAL