# using sub builds with file API
**URL:** https://discourse.cmake.org/t/using-sub-builds-with-file-api/3380
**Category:** Usage
**Created:** [May 20, 2021, 4:25pm UTC](https://discourse.cmake.org/t/using-sub-builds-with-file-api/3380 "2021-05-20T16:25:55Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@hex](https://discourse.cmake.org/u/hex)
#### Post date: [May 20, 2021, 4:25pm UTC](https://discourse.cmake.org/t/using-sub-builds-with-file-api/3380/1 "2021-05-20T16:25:55Z")
When using the file API for ide integration is it possible to create a build per project for Makefile generators?
I would like to create a sub project from my main build by using a second `project` call.
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### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [May 20, 2021, 4:28pm UTC](https://discourse.cmake.org/t/using-sub-builds-with-file-api/3380/2 "2021-05-20T16:28:36Z")
No, there’s no functionality for that.
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### Author:  [@hex](https://discourse.cmake.org/u/hex)
#### Post date: [May 20, 2021, 4:38pm UTC](https://discourse.cmake.org/t/using-sub-builds-with-file-api/3380/3 "2021-05-20T16:38:36Z")
is there a way to add it? I found a bug in Sublime Text generator. Instead of fixing it i thought about using file API, since it provides a lot more configuration features.
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### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [May 20, 2021, 4:55pm UTC](https://discourse.cmake.org/t/using-sub-builds-with-file-api/3380/4 "2021-05-20T16:55:31Z")
I don’t think that kind of thing is likely to happen anytime soon. There are probably a decent amount of behavioral changes to making any `project` call change things like this.