Subprojects not working with debug build on Linux

[iTrooz]

libromfs seems to confuse main project and subproject in a debug build on Linux

PoC : https://github.com/iTrooz/libromfs-example (commit iTrooz/libromfs-example@e8fa12b)

With debug build :

GET PROJECT=testProject
GET PROJECT=testProject
11

With release build :

GET PROJECT=testProject
GET PROJECT=subProject
11

Note : this was first found in WerWolv/ImHex#797

[WerWolv]

I think the issue is that here https://github.com/iTrooz/libromfs-example/blob/main/subProject/CMakeLists.txt#L18 you set the libromfs build folder of the subproject to the same folder as the main project uses. This probably confuses cmake

[iTrooz]

I just changed it (iTrooz/libromfs-example@138b5ee) but it doesn't seem to change anything, I get the same output

[iTrooz]

Also, I just noticed something :
When building (make), I get this message :

<command-line>: warning: "LIBROMFS_PROJECT_NAME" redefined
<command-line>: note: this is the location of the previous definition

both Debug and Release builds print this message

[iTrooz]

Commit WerWolv/ImHex@e3f2541 fixed it in ImHex.

WerWolv quote on why it fixes it :

The issue was that we were using and linking to ImHex's main romfs in libimhex. And that was bleeding out into the plugins since they were linking to it
I completely removed it from libimhex now and only access it from the main application