Pepper Gray 1420d3cc10 set sysroot to X86_DEV_ROOTFS for guest toolchain ...

**Faulty Behaviour:**
When not building on Ubuntu `unittests/ThunkLibs` fails to find
c++ header and fails:

```
gen_input.cpp:2:10: fatal error: 'cstddef' file not found
    2 | #include <cstddef>
      |          ^~~~~~~~~
1 error generated.
```

This also includes building with nix-shell:
```
nix-shell ../Data/nix/LibraryForwarding/shell.nix --run "cmake --build . --target thunkgen_tests"
```

**Root Cause**:
`X86_DEV_ROOTFS` is not used, but  header paths are hard
coded to Ubuntu's multilib layout (`/usr/i686-linux-gnu/include/`,
`/usr/x86_64-linux-gnu/include/`). It works on Ubuntu but the
mechanism to use to another directory is broken and the include
paths always point to the host.

**Solution**:
set `--sysroot ${X86_DEV_ROOTFS}` for guest builds and remove
hard coded include paths.

Fix: #5515
Signed-off-by: Pepper Gray <hello@peppergray.xyz>

2026-05-25 17:18:47 +02:00

..

abi.cpp

Fix building under clang-22

2026-02-26 19:55:35 +08:00

CMakeLists.txt

set sysroot to X86_DEV_ROOTFS for guest toolchain

2026-05-25 17:18:47 +02:00

common.h

set sysroot to X86_DEV_ROOTFS for guest toolchain

2026-05-25 17:18:47 +02:00

generator.cpp

unittests/ThunkLibs: Fix build with LLVM 21

2025-10-15 23:04:10 +08:00