Hello every1!
I have some issues with Automatic Build System. I want to build scripts for SourcePawn language.
I have sublime build file for it, and it works, but only if I’m choosing Build System. I want make it works without choosing(Automatic option). I can’t define “selector” 'cause I haven’t .tmLanguage file. Although I can make it with:

"selector": "source.c, source.c++"

but then c++ files will compile via SourcePawn compiler.

So, what is the file format you want to build? And what is its scope? If you don’t know the latter, do “ctrl+alt+shift+p” anywhere in the source file and check the first word which should be this file’s base scope. This is what you want for the “selector” property.

It depends on which syntax highlighting I use
I’m writing in SourcePawn language(extension - .sp)
ST2 hasn’t highlighting for it, so I often use c++ highlighting, it’s more similar to sourcepawn.

Well, since you only can determine a build system according to the scope and you use the same scope (syntax definition) for SourcePawn and C++ respectively you have problems.
You can copy the c++ syntax and modify it slightly (change the “name” to “SourcePawn (C++)” or similar, change the base scope (“scopeName”) and the file extension). Then ST would automatically load this new syntax (due to the file extension) and you can use a build system for the new scope.