diff --git a/headers/modsecurity/rules_properties.h b/headers/modsecurity/rules_properties.h
index cdd613cb..4c526e2a 100644
--- a/headers/modsecurity/rules_properties.h
+++ b/headers/modsecurity/rules_properties.h
@@ -70,6 +70,23 @@ class RulesProperties {
         responseBodyLimit(0),
         responseBodyLimitAction(ProcessPartialBodyLimitAction),
         secRuleEngine(DetectionOnlyRuleEngine) { }
+
+
+/*
+    RulesProperties(const RulesProperties &other)
+        : audit_log(other.audit_log),
+        m_debugLog(other.m_debugLog),
+        remoteRulesActionOnFailed(other.remoteRulesActionOnFailed),
+        requestBodyLimit(other.requestBodyLimit),
+        requestBodyNoFilesLimit(other.requestBodyNoFilesLimit),
+        requestBodyInMemoryLimit(other.requestBodyInMemoryLimit),
+        secRequestBodyAccess(other.secRequestBodyAccess),
+        secResponseBodyAccess(other.secResponseBodyAccess),
+        requestBodyLimitAction(other.requestBodyLimitAction),
+        responseBodyLimit(other.responseBodyLimit),
+        responseBodyLimitAction(other.responseBodyLimitAction),
+        secRuleEngine(other.secRuleEngine) { }
+*/
     ~RulesProperties() {
         delete m_debugLog;
     }
diff --git a/src/actions/action.cc b/src/actions/action.cc
index d49d2874..c0cf9260 100644
--- a/src/actions/action.cc
+++ b/src/actions/action.cc
@@ -61,7 +61,6 @@ Action *Action::instantiate(const std::string& name) {
     std::string block("block");
     std::string phase("phase:");
     std::string rule_id("id:");
-    std::string severity("severity:");
 
     if (name.compare(0, status.length(), status) == 0) {
         return new Status(name);
diff --git a/src/actions/rule_id.h b/src/actions/rule_id.h
index 5113bf4d..c17d1ff9 100644
--- a/src/actions/rule_id.h
+++ b/src/actions/rule_id.h
@@ -33,7 +33,8 @@ namespace actions {
 class RuleId : public Action {
  public:
     explicit RuleId(std::string action)
-        : Action(action, ConfigurationKind) { }
+        : Action(action, ConfigurationKind),
+        m_ruleId(0) { }
 
     bool init(std::string *error) override;
     bool evaluate(Rule *rule, Assay *assay) override;
diff --git a/src/actions/set_var.cc b/src/actions/set_var.cc
index e6cb416a..432fa065 100644
--- a/src/actions/set_var.cc
+++ b/src/actions/set_var.cc
@@ -101,7 +101,6 @@ void SetVar::dump() {
 
 bool SetVar::evaluate(Rule *rule, Assay *assay) {
     std::string targetValue;
-    int value = 0;
     std::string variableNameExpanded = MacroExpansion::expand(variableName,
         assay);
     std::string resolvedPre = MacroExpansion::expand(predicate, assay);
@@ -112,6 +111,8 @@ bool SetVar::evaluate(Rule *rule, Assay *assay) {
         targetValue = std::string("1");
     } else {
         int pre = 0;
+        int value = 0;
+
         try {
             pre = stoi(resolvedPre);
         } catch (...) {
diff --git a/src/actions/transformations/replace_comments.cc b/src/actions/transformations/replace_comments.cc
index 8e798254..29235052 100644
--- a/src/actions/transformations/replace_comments.cc
+++ b/src/actions/transformations/replace_comments.cc
@@ -38,9 +38,7 @@ ReplaceComments::ReplaceComments(std::string action)
 
 std::string ReplaceComments::evaluate(std::string value,
     Assay *assay) {
-
     uint64_t i, j, incomment;
-    int changed = 0;
 
     char *input = reinterpret_cast<char *>(
         malloc(sizeof(char) * value.size() + 1));
@@ -52,7 +50,6 @@ std::string ReplaceComments::evaluate(std::string value,
         if (incomment == 0) {
             if ((input[i] == '/') && (i + 1 < value.size())
                 && (input[i + 1] == '*')) {
-                changed = 1;
                 incomment = 1;
                 i += 2;
             } else {
diff --git a/src/assay.cc b/src/assay.cc
index 1323984f..2881300b 100644
--- a/src/assay.cc
+++ b/src/assay.cc
@@ -1083,11 +1083,11 @@ int Assay::processLogging(int returned_code) {
 
     /* If relevant, save this assay information at the audit_logs */
     if (m_rules != NULL && m_rules->audit_log != NULL) {
+        int parts = -1;
 #ifndef NO_LOGS
         debug(8, "Checking if this request is suitable to be " \
             "saved as an audit log.");
 #endif
-        int parts = -1;
 
         if (this->auditLogModifier.size() > 0) {
 #ifndef NO_LOGS
@@ -1112,12 +1112,14 @@ int Assay::processLogging(int returned_code) {
             debug(8, "This request was marked to be " \
                 "saved via auditlog action.");
         }
+#endif
 
         bool saved = this->m_rules->audit_log->saveIfRelevant(this, parts);
         if (saved) {
+#ifndef NO_LOGS
             debug(8, "Request was relevant to be saved.");
-        }
 #endif
+        }
     }
 
     return true;
diff --git a/src/debug_log_writer.cc b/src/debug_log_writer.cc
index ecc7c07d..445829fe 100644
--- a/src/debug_log_writer.cc
+++ b/src/debug_log_writer.cc
@@ -56,11 +56,10 @@ void DebugLogWriter::close(const std::string& fileName) {
 
 void DebugLogWriter::write(const std::string& file, const std::string &msg) {
     std::map<std::string, DebugLogWriterAgent *>::iterator it;
-    DebugLogWriterAgent *agent;
 
     it = agents.find(file);
     if (it != agents.end()) {
-        agent = it->second;
+        DebugLogWriterAgent *agent = it->second;
         agent->write(msg);
     } else {
         std::cout << file << ": " << msg << std::endl;
diff --git a/src/operators/detect_sqli.cc b/src/operators/detect_sqli.cc
index 60a1d7a0..a2994967 100644
--- a/src/operators/detect_sqli.cc
+++ b/src/operators/detect_sqli.cc
@@ -16,6 +16,7 @@
 #include "operators/detect_sqli.h"
 
 #include <string>
+#include <list>
 
 #include "operators/operator.h"
 #include "others/libinjection/src/libinjection.h"
diff --git a/src/operators/detect_xss.cc b/src/operators/detect_xss.cc
index 67a5e359..7a202f4a 100644
--- a/src/operators/detect_xss.cc
+++ b/src/operators/detect_xss.cc
@@ -30,19 +30,15 @@ bool DetectXSS::evaluate(Assay *assay, const std::string &input) {
 
     is_xss = libinjection_xss(input.c_str(), input.length());
 
-    if (is_xss) {
-        if (assay) {
+    if (assay) {
 #ifndef NO_LOGS
+        if (is_xss) {
             assay->debug(5, "detected XSS using libinjection.");
-#endif
-        }
-    } else {
-        if (assay) {
-#ifndef NO_LOGS
+        } else {
             assay->debug(9, "libinjection was not able to " \
                 "find any XSS in: " + input);
-#endif
         }
+#endif
     }
 
     if (negation) {
diff --git a/src/operators/operator.cc b/src/operators/operator.cc
index eb3afd95..39083ff5 100644
--- a/src/operators/operator.cc
+++ b/src/operators/operator.cc
@@ -75,33 +75,29 @@ bool Operator::debug(Assay *assay, int x, std::string a) {
 
 
 bool Operator::evaluate(Assay *assay) {
-    if (assay) {
 #ifndef NO_LOGS
+    if (assay) {
         assay->debug(2, "Operator: " + this->op + \
             " is not implemented or malfunctioning.");
-#endif
     } else {
-#ifndef NO_LOGS
         std::cerr << "Operator: " + this->op + \
             " is not implemented or malfunctioning.";
-#endif
     }
+#endif
     return true;
 }
 
 
 bool Operator::evaluate(Assay *assay, const std::string& a) {
-    if (assay) {
 #ifndef NO_LOGS
+    if (assay) {
         assay->debug(2, "Operator: " + this->op + \
             " is not implemented or malfunctioning.");
-#endif
     } else {
-#ifndef NO_LOGS
         std::cerr << "Operator: " + this->op + \
             " is not implemented or malfunctioning.";
-#endif
     }
+#endif
 
     return true;
 }
diff --git a/src/operators/verify_cc.cc b/src/operators/verify_cc.cc
index 5908fce1..75c3883a 100644
--- a/src/operators/verify_cc.cc
+++ b/src/operators/verify_cc.cc
@@ -70,7 +70,6 @@ int VerifyCC::luhnVerify(const char *ccnumber, int len) {
 
 
 bool VerifyCC::init(const std::string &param2, const char **error) {
-    std::vector<std::string> vec;
     const char *errptr = NULL;
     int erroffset = 0;
 
diff --git a/src/operators/verify_cc.h b/src/operators/verify_cc.h
index 9257e8cc..dae52a93 100644
--- a/src/operators/verify_cc.h
+++ b/src/operators/verify_cc.h
@@ -28,7 +28,9 @@ class VerifyCC : public Operator {
  public:
     /** @ingroup ModSecurity_Operator */
     VerifyCC(std::string op, std::string param, bool negation)
-        : Operator(op, param, negation) { }
+        : Operator(op, param, negation),
+        m_pc(NULL),
+        m_pce(NULL) { }
 
     int luhnVerify(const char *ccnumber, int len);
     bool evaluate(Assay *assay, const std::string &input) override;
diff --git a/src/rule.cc b/src/rule.cc
index 45b9fe11..4fa26994 100644
--- a/src/rule.cc
+++ b/src/rule.cc
@@ -138,7 +138,7 @@ Rule::Rule(Operator *_op,
 bool Rule::evaluateActions(Assay *assay) {
     int none = 0;
     bool containsDisruptive = false;
-    int transformations = 0;
+    // int transformations = 0;
     for (Action *a : this->actions_runtime_pre) {
         None *z = dynamic_cast<None *>(a);
         if (z != NULL) {
diff --git a/src/utils.cc b/src/utils.cc
index 8a42c6a3..b227f742 100644
--- a/src/utils.cc
+++ b/src/utils.cc
@@ -1014,7 +1014,6 @@ std::string limitTo(int amount, const std::string &str) {
 
 std::string toHexIfNeeded(const std::string &str) {
     std::stringstream res;
-    size_t pos;
 
     for (int i = 0; i < str.size(); i++) {
         int c = str.at(i);