added support of print stack trace on crash

CQtDeployer/main.cpp

@@ -14,9 +14,28 @@
 #include <QList>
 #include <deploy.h>
 
+#include <signal.h>
+#include <unistd.h>
+#include <execinfo.h>
+
+void handler(int sig) {
+  void *array[10];
+  size_t size;
+
+  // get void*'s for all entries on the stack
+  size = backtrace(array, 10);
+
+  // print out all the frames to stderr
+  fprintf(stderr, "Error: signal %d:\n", sig);
+  backtrace_symbols_fd(array, size, STDERR_FILENO);
+  exit(1);
+}
 
 int main(int argc, const char *argv[]) {
 
+    signal(SIGSEGV, handler);   // install our handler
+
+
     QCoreApplication::setOrganizationName("QuasarApp");
     QCoreApplication::setOrganizationDomain("https://github.com/QuasarApp");
     QCoreApplication::setApplicationName("CQtDeployer");