INFO: Visual C++ 5.0 Readme, Build Issues (165681)

MORE INFORMATION

Reducing the Size of Header Files for Faster Builds

To speed the build process, Visual C++ 5.0 provides the following new defines. Use them to reduce the size of the Win32 header files.

• VC_EXTRALEAN
• WIN32_LEAN_AND_MEAN

Newly generated Visual C++ AppWizard applications automatically benefit from VC_EXTRALEAN. You can also manually define VC_EXTRALEAN to speed the build process of many legacy MFC applications.

Non-MFC C++ and C applications can define WIN32_EXTRA_LEAN and any applicable NOservice defines, such as NOSOUND (see DevStudio\Vc\include\Windows.h), to reduce their build times.

To add these defines, from the Project menu, choose Settings. The Projects settings dialog box appears. Click the C/C++ tab. In the Category list, select Preprocessor. Add the desired definitions to the Preprocessor Definitions box.

Several Project System and Debugger Methods are Disabled when the

BuildFinish Event is Fired

Consider the following VBScript event handler:

   Sub Application_BuildFinish(nNumErrors, nNumWarnings)

   if nNumErrors+nNumWarnings = 0 then
       ExecuteCommand "ToggleOutputWindow"
       ExecuteConfiguration
   end if

   End Sub
				

ExecuteConfiguration fails because the BuildFinish event is fired before several project system and debugger commands have been re-enabled. The methods that invoke these commands, like ExecuteConfiguration, will remain disabled between the time that the event is fired and the time the event handler returns. After the Application_BuildFinish event handler returns, these methods will be re-enabled.

Workaround

1. Create a new macro, for example, MyBuild, with the following code:

         Sub MyBuild
             Build
             ' Add other method calls here that can't appear in the
             ' BuildFinish event handler, such as "ExecuteConfiguration"
         End Sub
   						

2. Always invoke a build by using this new macro instead of using the default Build menu command or toolbar. Note that you can create a custom menu command or toolbar button for your new MyBuild macro by going to the Tools menu, clicking Customize, and using the Commands tab of the dialog box.

The Application_BuildFinish VBScript event handler now becomes:

   Sub Application_BuildFinish(nNumErrors, nNumWarnings)

       if nNumErrors+nNumWarnings = 0 then
           ExecuteCommand "ToggleOutputWindow"
       end if
   End Sub
				

In this case Build will fire the BuildFinish event and return control to the MyBuild subroutine at which time the ExecuteConfiguration will be enabled. You can see what other methods are disabled simply by looking at the disabled menu items when a build is in progress.

Building ATL Projects from the Command Line Can Generate NMAKE Error

Building an ATL program from the command line can generate NMAKE error U1073. (This problem does not occur when building ATL samples from within the integrated development environment.)

For example, the following command line: will generate this error: From the command line, ATL projects require two passes to build. The first pass directs MIDL to create a header file that is required for the second pass.