Remove some use of deprecated proj API

Sponsored by ICSM

Author: nyalldawson

src/app/qgisapp.cpp

@@ -354,11 +354,9 @@ Q_GUI_EXPORT extern int qt_defaultDpiX();
 #include <gdal_version.h>
 #if PROJ_VERSION_MAJOR > 4
 #include <proj.h>
-#endif
-#ifndef ACCEPT_USE_OF_DEPRECATED_PROJ_API_H
-#define ACCEPT_USE_OF_DEPRECATED_PROJ_API_H
-#endif
+#else
 #include <proj_api.h>
+#endif
 
 //
 // Other includes
@@ -4511,8 +4509,8 @@ void QgisApp::about()
 
 #if PROJ_VERSION_MAJOR > 4
     PJ_INFO info = proj_info();
-    versionString += "<td>" + tr( "Compiled against PROJ" ) + "</td><td>" + QString::number( PJ_VERSION ) + "</td>";
-    versionString += "<td>" + tr( "Running against PROJ" ) + "</td><td>" + info.version + "</td>";
+    versionString += "<td>" + tr( "Compiled against PROJ" ) + QStringLiteral( "</td><td>%1.%2.%3</td>" ).arg( PROJ_VERSION_MAJOR ).arg( PROJ_VERSION_MINOR ).arg( PROJ_VERSION_PATCH );
+    versionString += "<td>" + tr( "Running against PROJ" ) + QStringLiteral( "</td><td>%1.%2.%3</td>" ).arg( info.major ).arg( info.minor ).arg( info.patch );
 #else
     versionString += "<td>" + tr( "PROJ.4 Version" ) + "</td><td colspan=3>" + QString::number( PJ_VERSION ) + "</td>";
 #endif