why there is no Makefile or CMakeList in /usr/src/debug?

[guyuming]

i installed the source code with installsources feature, and found source files in /usr/src/debug/sys-devel/gdb-10.2/gdb-10.2

but i cannot find makefile there;

if git clone directly, i can see makefile in ~/binutils-gdb.

with makefile, i can use "bear make" to create compile_commands.json file and then use emacs lsp-mode to explore the project source code.

But why there is no makefile or CMakeLists.txt in the code installed by installsources feature?


update: just found that source code in /usr/src/debug seems to be created by rsync.

i am trying to work with the source project created by ebuild now:

ebuild xxxxx.ebuild unpack
ebuild xxxxx.ebuild configure


and is facing new question: viewtopic-p-8621544-highlight-.html#8621544