AdditionalCompilerOptions per file "/bigobj"

[soufianekhiat]

How can I add a custom build option per file?
I am using AdditionalCompilerOptions for project, I would like to add "/bigobj" for a given cpp file.

[soufianekhiat]

What I'm looking for is an equivalent from CMake;

if (MSVC)
  set_source_files_properties(Registry.cpp PROPERTIES COMPILE_FLAGS /bigobj)
endif()

Which commonly needed for generated code.

[belkiss]

Unfortunately, Sharpmake doesn't really support per-file compiler options, only for some rare cases, and /bigobj is not one of those.

Any reason why you prefer not to set it globally? Afaik it doesn't have any negative impact.

[soufianekhiat]

No real reason I used to do it in this way.
So an:
AdditionalCompilerOptions.Add("/bigobj");
Should work?

[belkiss]

Correct, I usually recommend doing that in your configure method that's called on platforms using MSVC:

conf.AdditionalCompilerOptions.Add("/bigobj");

Note that you usually get faster compile times when you set options in the project rather than per file, that way visual studio (but really msbuild) can group the compiler invocations (ex: cl.exe /bigobj file1.cpp file2.cpp file3.cpp...), otherwise it will invoke it as many times as it needs to.

[soufianekhiat]

I use to do it per file to keep track of the "too big file" if I can do something about it.
That will work for me.

[Fixed]