osgeo4w: fix install in directory with blanks (fixes #8398)

Author: jef-n

ms-windows/osgeo4w/postinstall-desktop.bat

@@ -1,14 +1,16 @@
 textreplace -std -t bin\@package@.bat
 textreplace -std -t bin\@package@-browser.bat
 
+REM get short path without blanks
+for %%i in ("%OSGEO4W_ROOT%") do set O4W_ROOT=%%~fsi
+
 if not %OSGEO4W_MENU_LINKS%==0 mkdir "%OSGEO4W_STARTMENU%"
-if not %OSGEO4W_MENU_LINKS%==0 xxmklink "%OSGEO4W_STARTMENU%\QGIS Desktop (@version@).lnk"       "%OSGEO4W_ROOT%\bin\@package@.bat" " " \ "QGIS - Desktop GIS (@version@)" 1 "%OSGEO4W_ROOT%\apps\@package@\icons\QGIS.ico"
-if not %OSGEO4W_MENU_LINKS%==0 xxmklink "%OSGEO4W_STARTMENU%\QGIS Browser (@version@).lnk"       "%OSGEO4W_ROOT%\bin\@package@-browser.bat" " " \ "QGIS - Desktop GIS (@version@)" 1 "%OSGEO4W_ROOT%\apps\@package@\icons\QGIS.ico"
+if not %OSGEO4W_MENU_LINKS%==0 xxmklink "%OSGEO4W_STARTMENU%\QGIS Desktop (@version@).lnk"       "%O4W_ROOT%\bin\@package@.bat" " " \ "QGIS - Desktop GIS (@version@)" 1 "%O4W_ROOT%\apps\@package@\icons\QGIS.ico"
+if not %OSGEO4W_MENU_LINKS%==0 xxmklink "%OSGEO4W_STARTMENU%\QGIS Browser (@version@).lnk"       "%O4W_ROOT%\bin\@package@-browser.bat" " " \ "QGIS - Desktop GIS (@version@)" 1 "%O4W_ROOT%\apps\@package@\icons\QGIS.ico"
 
-if not %OSGEO4W_DESKTOP_LINKS%==0 xxmklink "%ALLUSERSPROFILE%\Desktop\QGIS Desktop (@version@).lnk" "%OSGEO4W_ROOT%\bin\@package@.bat" " " \ "QGIS - Desktop GIS (@version@)" 1 "%OSGEO4W_ROOT%\apps\@package@\icons\QGIS.ico"
-if not %OSGEO4W_DESKTOP_LINKS%==0 xxmklink "%ALLUSERSPROFILE%\Desktop\QGIS Browser (@version@).lnk" "%OSGEO4W_ROOT%\bin\@package@-browser.bat" " " \ "QGIS - Desktop GIS (@version@)" 1 "%OSGEO4W_ROOT%\apps\@package@\icons\QGIS.ico"
+if not %OSGEO4W_DESKTOP_LINKS%==0 xxmklink "%ALLUSERSPROFILE%\Desktop\QGIS Desktop (@version@).lnk" "%O4W_ROOT%\bin\@package@.bat" " " \ "QGIS - Desktop GIS (@version@)" 1 "%O4W_ROOT%\apps\@package@\icons\QGIS.ico"
+if not %OSGEO4W_DESKTOP_LINKS%==0 xxmklink "%ALLUSERSPROFILE%\Desktop\QGIS Browser (@version@).lnk" "%O4W_ROOT%\bin\@package@-browser.bat" " " \ "QGIS - Desktop GIS (@version@)" 1 "%O4W_ROOT%\apps\@package@\icons\QGIS.ico"
 
-set O4W_ROOT=%OSGEO4W_ROOT%
 set OSGEO4W_ROOT=%OSGEO4W_ROOT:\=\\%
 textreplace -std -t "%O4W_ROOT%\apps\@package@\bin\qgis.reg"
 "%WINDIR%\regedit" /s "%O4W_ROOT%\apps\@package@\bin\qgis.reg"

ms-windows/osgeo4w/postinstall-desktop64.bat

@@ -1,14 +1,16 @@
 textreplace -std -t bin\@package@.bat
 textreplace -std -t bin\@package@-browser.bat
 
+REM get short path without blanks
+for %%i in ("%OSGEO4W_ROOT%") do set O4W_ROOT=%%~fsi
+
 if not %OSGEO4W_MENU_LINKS%==0 mkdir "%OSGEO4W_STARTMENU%"
-if not %OSGEO4W_MENU_LINKS%==0 nircmd shortcut "%OSGEO4W_ROOT%\bin\nircmd.exe" "%OSGEO4W_STARTMENU%" "QGIS Desktop @version@" "exec hide """%OSGEO4W_ROOT%\bin\@package@.bat"" "%OSGEO4W_ROOT%\apps\@package@\icons\QGIS.ico"
-if not %OSGEO4W_MENU_LINKS%==0 nircmd shortcut "%OSGEO4W_ROOT%\bin\nircmd.exe" "%OSGEO4W_STARTMENU%" "QGIS Browser @version@" "exec hide """%OSGEO4W_ROOT%\bin\@package@-browser.bat"" "%OSGEO4W_ROOT%\apps\@package@\icons\QGIS.ico"
+if not %OSGEO4W_MENU_LINKS%==0 nircmd shortcut "%O4W_ROOT%\bin\nircmd.exe" "%OSGEO4W_STARTMENU%" "QGIS Desktop @version@" "exec hide %O4W_ROOT%\bin\@package@.bat" "%O4W_ROOT%\apps\@package@\icons\QGIS.ico"
+if not %OSGEO4W_MENU_LINKS%==0 nircmd shortcut "%O4W_ROOT%\bin\nircmd.exe" "%OSGEO4W_STARTMENU%" "QGIS Browser @version@" "exec hide %O4W_ROOT%\bin\@package@-browser.bat" "%O4W_ROOT%\apps\@package@\icons\QGIS.ico"
 
-if not %OSGEO4W_DESKTOP_LINKS%==0 nircmd shortcut "%OSGEO4W_ROOT%\bin\nircmd.exe" "~$folder.desktop$" "QGIS Desktop @version@" "exec hide """%OSGEO4W_ROOT%\bin\@package@.bat"" "%OSGEO4W_ROOT%\apps\@package@\icons\QGIS.ico"
-if not %OSGEO4W_DESKTOP_LINKS%==0 nircmd shortcut "%OSGEO4W_ROOT%\bin\nircmd.exe" "~$folder.desktop$" "QGIS Browser @version@" "exec hide """%OSGEO4W_ROOT%\bin\@package@-browser.bat"" "%OSGEO4W_ROOT%\apps\@package@\icons\QGIS.ico"
+if not %OSGEO4W_DESKTOP_LINKS%==0 nircmd shortcut "%O4W_ROOT%\bin\nircmd.exe" "~$folder.desktop$" "QGIS Desktop @version@" "exec hide %O4W_ROOT%\bin\@package@.bat" "%O4W_ROOT%\apps\@package@\icons\QGIS.ico"
+if not %OSGEO4W_DESKTOP_LINKS%==0 nircmd shortcut "%O4W_ROOT%\bin\nircmd.exe" "~$folder.desktop$" "QGIS Browser @version@" "exec hide %O4W_ROOT%\bin\@package@-browser.bat" "%O4W_ROOT%\apps\@package@\icons\QGIS.ico"
 
-set O4W_ROOT=%OSGEO4W_ROOT%
 set OSGEO4W_ROOT=%OSGEO4W_ROOT:\=\\%
 textreplace -std -t "%O4W_ROOT%\apps\@package@\bin\qgis.reg"
 "%WINDIR%\regedit" /s "%O4W_ROOT%\apps\@package@\bin\qgis.reg"

src/core/qgscontexthelp.cpp

@@ -73,7 +73,7 @@ QProcess *QgsContextHelp::start()
   }
 #endif
 
-  process->start( helpPath );
+  process->start( helpPath, QStringList() );
 
   return process;
 }