Defining the path for multiple files

[Ubaid_M]

Hello,

I am starting to work on a sample project, wherein I need to include multiple C++ files, all present under a common folder.
Can I define that common file path under a variable like "app_sources", so that in CMakelists.txt I can define as: 

target_sources(app PRIVATE

  ${app_sources/sample.cpp}

  )

where can I define this path "app_sources"..?

I am using nRF Connect extension on VScode.

[Øivind]

Hi,

Here is an example of how to set and use a variable as part of a path:

set(MY_APP_SOURCES C:/ncs/v1.7.0/zephyr/samples/hello_world/src)

target_sources(app PRIVATE ${MY_APP_SOURCES}/main.c)

[Ubaid_M]

Hello Øivind,

Thanks for clearing this up, an extension to this query is, 

How to resolve SDK file inclusion errors in main.cpp:

For example, I am using the same hello_world sample app, where I added main.cpp by excluding main.c
And copying contents of main.c into main.cpp

Now I am getting the below error in main.cpp:

 my CMakeLists.txt looks like this:

# SPDX-License-Identifier: Apache-2.0

cmake_minimum_required(VERSION 3.20.0)

find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(hello_world)
#src/main.c
target_sources(app PRIVATE D:/CPP_Test/cpp_files/main.cpp)

Kindly help me in solving this.!

[Øivind]

I see you are getting help with this issue from Einar in this case: https://devzone.nordicsemi.com/support-private/support/277888
He will be able to help you.
But just off the top of my head, try closing SES, deleting the build folder, and reopening the project in SES.
Then try building. Like Einar said, there is rarely any reason to modify anything in the build folder, and doing so may cause issues.

[Ubaid_M]

Hi Øivind,

I did that and unfortunately it did not work, I am unable to build successfully with main.cpp. 
For that I need help with.

[Øivind]

Ok, Einar will help you with this issue in your other case.