remove compile arg from project.py

Author: fredboudon

project.py

@@ -88,7 +88,6 @@ def apply_user_defaults(self, tool):
             self.libraries.append('GLU')
             if not CONDA_BUILD_SYSROOT is None :
                 self.include_dirs.append(f'{CONDA_BUILD_SYSROOT}/usr/include')
-            self.compile_args.append("-D_GLIBCXX_USE_CLOCK_REALTIME=0")
 
         elif platform.system() == 'Windows':
             self.libraries.append('QGLViewer2')

sip/PyQGLViewer/qglviewerversion.sip

@@ -28,7 +28,9 @@
 
 %ModuleCode
 
+#ifndef PYQGLVIEWER_VERSION
 #define PYQGLVIEWER_VERSION 0x010400
+#endif
 
 static const char * PyQGLViewerVersionString(){
   return qPrintable(QString::number((PYQGLVIEWER_VERSION & 0xff0000) >> 16) + "." +