Eglot + clangd not working for NetHack code base

1. NetHack

   1 65 3,892 9.9 C

   Official NetHack Git Repository

   

   My configuration of Eglot is simple: (use-package eglot :hook (c-mode . eglot-ensure)). And it works for a single c file. But when I use this setup to read the code of NetHack, it doesn't work for linting and definition finding (M-.), even though eglot connection has no problem. I observed the same problems when reading the code of SQLite. Some specific problems I observed:

2. Kargo

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3. compiledb

   2 6 1,641 7.1 Python

   Tool for generating Clang's JSON Compilation Database files for make-based build systems.

   

   An update: I am now able to make everything work by generating `compile_commands.json` using compiledb. I'm aware that there is another tool Bear but for some reason it generates an empty `compile_commands.json` file for me.

4. Bear

   3 54 6,464 9.7 Rust

   Generate compile_commands.json for any C or C++ build

   

   An update: I am now able to make everything work by generating `compile_commands.json` using compiledb. I'm aware that there is another tool Bear but for some reason it generates an empty `compile_commands.json` file for me.

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