FIX: Custom Build Generates LNK1104 for Project Build from IDE (149496)

MORE INFORMATION

Steps to Reproduce Problem

1. Create two directories:

      \Junk
      \Junk\Src

2. Create a text file named \Junk\Src\Source.cs that has the following contents:

      #include <stdio.h>0
   
      void main( void )
      {
        printf("Custom build options has a bug\n");
      }

3. In Developer Studio, on the File menu, choose New, and then choose Project Workspace. Select the Console Application type in the New Project Workspace dialog box. Type a name (for example, test1), and then the project location should read:

      \Junk\Src\Test
   
      Create the project.

4. On the Insert menu, choose Files into project, and type ..\Source.cs for the file name. Then click OK. On the Insert menu, choose Files into project again. Type Source.c for the file name, and click OK. Developer Studio will say this file doesn't exist and ask if you want to add it as a reference; click Yes.
5. On the Build menu, choose Settings. Expand both the Debug and Release branches of Project Settings by clicking the plus sign (+) next to each project target. Select Source.cs under Debug and Control. Then click Source.cs under Release. Choose the Custom Build tab.
6. Type "The proof is in the build" for the Description. Click in the first line of Build commands. Type the following (use macro menus if you wish):

         copy ..\$(InputName).cs $(ProjDir)\$(InputName).c

7. Click in the first line of Output files. Type the following:

         $(ProjDir)\$(InputName).c

8. Click OK.
9. Build the project. It will do the custom build step but it will not follow it up with a compile of the .c file and a linker error LNK1104 (cannot open ".\Debug\Source.obj") will be generated. Note that choosing to Save all after setting the custom build option in Step 5 has the same effect.