Fix some compile warnings

DSView/pv/data/decode/decoder.h

@@ -24,6 +24,9 @@
 
 #include <map>
 #include <set>
+#include <string>
+#include <sstream>
+#include <iostream>
 
 #include <boost/shared_ptr.hpp>
 

DSView/pv/data/signaldata.cpp

@@ -32,6 +32,8 @@ SignalData::SignalData() :
 {
 }
 
+SignalData::~SignalData() {}
+
 double SignalData::samplerate() const
 {
 	return _samplerate;

DSView/pv/data/signaldata.h

@@ -34,7 +34,7 @@ class SignalData
 {
 public:
     SignalData();
-
+    virtual ~SignalData() = 0;
 public:
     double samplerate() const;
     void set_samplerate(double samplerate);

DSView/pv/dialogs/calibration.cpp

@@ -45,7 +45,7 @@ const QString Calibration::VCOMB = QT_TR_NOOP(" VCOMB");
 Calibration::Calibration(QWidget *parent) :
     DSDialog(parent)
 {
-#ifdef Q_OS_OSX
+#ifdef Q_OS_DARWIN
     Qt::WindowFlags flags = windowFlags();
     this->setWindowFlags(flags | Qt::Tool);
 #endif

DSView/pv/view/xcursor.cpp

@@ -50,7 +50,7 @@ XCursor::XCursor(View &view, QColor &colour,
     const std::vector< boost::shared_ptr<Signal> > sigs(_view.session().get_signals());
     BOOST_FOREACH(const boost::shared_ptr<Signal> s, sigs) {
         boost::shared_ptr<DsoSignal> dsoSig;
-        if (dsoSig = dynamic_pointer_cast<DsoSignal>(s))
+        if ((dsoSig = dynamic_pointer_cast<DsoSignal>(s)))
             if (dsoSig->enabled()) {
                 _dsoSig = dsoSig;
                 break;

libsigrok4DSL/hardware/DSL/dscope.c

@@ -1733,13 +1733,13 @@ static int dso_tune(const struct sr_dev_inst *sdi)
             else
                 margin -= (devc->mstatus.ch1_acc_mean * 1.0 / devc->limit_samples);
 
-            if ((devc->tune_probe->coupling == SR_AC_COUPLING) && (abs(margin) < 0.5)) {
+            if ((devc->tune_probe->coupling == SR_AC_COUPLING) && (fabs(margin) < 0.5)) {
                 devc->tune_probe->coupling = SR_DC_COUPLING;
                 ret = dsl_wr_dso(sdi, dso_cmd_gen(sdi, devc->tune_probe, SR_CONF_PROBE_COUPLING));
             } else if (devc->tune_probe->coupling == SR_AC_COUPLING){
                 (devc->tune_probe->vga_ptr+devc->tune_stage)->preoff += margin;
                 ret = dsl_wr_dso(sdi, dso_cmd_gen(sdi, devc->tune_probe, SR_CONF_PROBE_OFFSET));
-            } else if ((devc->tune_probe->coupling == SR_DC_COUPLING) && (abs(margin) < 0.5)) {
+            } else if ((devc->tune_probe->coupling == SR_DC_COUPLING) && (fabs(margin) < 0.5)) {
                 devc->tune_stage++;
                 if (devc->profile->dev_caps.vdivs[devc->tune_stage] != 0) {
                     ret = dsl_wr_ext(sdi, 0x01, mux[devc->tune_stage]);

libsigrok4DSL/libsigrok.h

@@ -1223,8 +1223,7 @@ struct sr_session {
 	GSList *devs;
 	/** List of struct datafeed_callback pointers. */
 	GSList *datafeed_callbacks;
-	GTimeVal starttime;
-	gboolean running;
+    gboolean running;
 
 	unsigned int num_sources;
 

libsigrok4DSL/output/srzip.c

@@ -299,7 +299,7 @@ static int cleanup(struct sr_output *o)
 
 static struct sr_option options[] = {
 	{ "filename", "Filename", "File to write", NULL, NULL },
-	{0}
+    {0, 0, 0, 0, 0}
 };
 
 static const struct sr_option *get_options(void)