look up Python interpreter in checkCWEEntries make target

Author: firewave

Makefile

@@ -385,7 +385,17 @@ validateXML: createXMLExamples
 	xmllint --noout --relaxng cppcheck-errors.rng /tmp/example.xml
 
 checkCWEEntries: /tmp/errorlist.xml
-	./tools/listErrorsWithoutCWE.py -F /tmp/errorlist.xml
+	# Find available Python interpreter
+	ifndef PYTHON_INTERPRETER
+		PYTHON_INTERPRETER := $(shell which python3)
+	endif
+	ifndef PYTHON_INTERPRETER
+		PYTHON_INTERPRETER := $(shell which python)
+	endif
+	ifndef PYTHON_INTERPRETER
+		$(error Did not find a Python interpreter)
+	endif
+	$(PYTHON_INTERPRETER) tools/listErrorsWithoutCWE.py -F /tmp/errorlist.xml
 .PHONY: validateRules
 validateRules:
 	xmllint --noout rules/*.xml

tools/dmake.cpp

@@ -496,7 +496,17 @@ int main(int argc, char **argv)
     fout << "\txmllint --noout --relaxng cppcheck-errors.rng /tmp/errorlist.xml\n";
     fout << "\txmllint --noout --relaxng cppcheck-errors.rng /tmp/example.xml\n";
     fout << "\ncheckCWEEntries: /tmp/errorlist.xml\n";
-    fout << "\t./tools/listErrorsWithoutCWE.py -F /tmp/errorlist.xml\n";
+    fout << "\t# Find available Python interpreter\n";
+    fout << "\tifndef PYTHON_INTERPRETER\n";
+    fout << "\t\tPYTHON_INTERPRETER := $(shell which python3)\n";
+    fout << "\tendif\n";
+    fout << "\tifndef PYTHON_INTERPRETER\n";
+    fout << "\t\tPYTHON_INTERPRETER := $(shell which python)\n";
+    fout << "\tendif\n";
+    fout << "\tifndef PYTHON_INTERPRETER\n";
+    fout << "\t\t$(error Did not find a Python interpreter)\n";
+    fout << "\tendif\n";
+    fout << "\t$(PYTHON_INTERPRETER) tools/listErrorsWithoutCWE.py -F /tmp/errorlist.xml\n";
     fout << ".PHONY: validateRules\n";
     fout << "validateRules:\n";
     fout << "\txmllint --noout rules/*.xml\n";