On certain linux operating systems, Qt application exits with an error

message such as 'X Error: BadDrawable'.

In order to resolve the issue, we need to let the Qt know not to load
the MIT-SHM extension.

Reference:
https://iwf1.com/quick-fix-one-kdes-common-xorg-errors-x-error-baddrawable/

runtime/pgAdmin4.cpp

@@ -175,6 +175,15 @@ void delay( int milliseconds )
 
 int main(int argc, char * argv[])
 {
+    /*
+     * Before starting main application, need to set 'QT_X11_NO_MITSHM=1'
+     * to make the runtime work with IBM PPC machine.
+     */
+#if defined (Q_OS_LINUX)
+    QByteArray val("1");
+    qputenv("QT_X11_NO_MITSHM", val);
+#endif
+
     // Create the QT application
     QApplication app(argc, argv);