fix: build tests and docs only if main project

[FrogTheFrog]

Description

Build tests and docs only if main project. Also applied some fixes from libdisplaydevice.

Removed the -ggdb flag as I could not find it anywhere in the provided link...

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Dependency update (updates to dependencies)
• Documentation update (changes to documentation)
• Repository update (changes to repository files, e.g. .github/...)

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the in code docstring/documentation-blocks for new or existing methods/components

[ReenigneArcher]

-ggdb was added here: LizardByte/Sunshine#2512

Whether it's useful... I don't know.

[FrogTheFrog]

-ggdb was added here: LizardByte/Sunshine#2512

Whether it's useful... I don't know.

Should we keep it?

[ReenigneArcher]

I think so... I incorporated it from your change in ldd. But in Sunshine we can't make the whole build a debug build, so only the tests are in debug.

Or for this library maybe need more of your other changes in ldd... probably for later.

[FrogTheFrog]

But you are already building both release and debug builds for Sunshine. Same for this one when tests are built 🤔

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[ReenigneArcher]

Why are your PRs giving so much trouble with codecov? 🤔