VS Arduino - Custom include path

Oct 29^th, 2025 at 7:00pm (UTC)

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Custom include path (Read 5095 times)

Paul Martinsen Junior Member Offline Posts: 14 Joined: Apr 12^th, 2017	Custom include path Apr 13^th, 2017 at 3:54am	Print Post
	Hello, Is it possible to add additional directories to the complier's search path? Either through -I or -iquote command line variables? I'm trying to make this work: Solution + Shared Project ++ ComplierDefinitions +++ Definitions.h + Arduino Project + CLR Project ++ ComplierDefinitions +++ Definitions.h Various files in the Shared Project and Arduino Project do #include "Definitions.h" For the Arduino Project I want this to reference the one in Shared Project/Compiler Definitions; for the CLR Project I want it to reference the one in CLR Project/CompilerDefinitions So I hoped I could add $(ProjectDir)CompilerDefintions to the include path property for the Arduino Project and CLR Project projects. I tried adding $(ProjectDir)CompilerDefinitions to my Arduino Project but that doesn't seem to do it (I see the avr-g++ call in the output window when building Arduino Project but it doesn't include my extra folder). Kind regards Paul.


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Paul Martinsen Junior Member Offline Posts: 14 Joined: Apr 12^th, 2017	Re: Custom include path Reply #1 - Apr 13^th, 2017 at 4:44am	Print Post
	I should have looked a little longer. For anyone else who has this problem... I found you can access Visual Micro project properties in the Properties window (view -> properties window) rather than the Project Properties dialog. There is a "Extra cpp flags" property, which get appended the the gcc call. Visual Micro doesn't use MS Build properties but defines a bunch of its own including build.path. So I solved my problem by adding: -I"{build.path}" -I"{build.path}\CompilerDefinitions" to "Extra cpp flags".


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Tim@Visual Micro Administrator Offline Posts: 12201 Location: United Kingdom Joined: Apr 10^th, 2010	Re: Custom include path Reply #2 - Apr 13^th, 2017 at 11:12am	Print Post
	Thanks for the update. Yes the extra flags are a simple way to add paths. Using Visual Studio shared projects can also be useful and make it easier to edit and see the code in the solution explorer.


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