Installation: improve FreeBSD instructions for Manual Build

[jbeich]

[vaxerski]

huh why is cmake linux only?

[jbeich]

huh why is cmake linux only?

I've dropped 2ec125b41299 in favor of https://github.com/hyprwm/Hyprland/pull/2209

[fufexan]

@jbeich has anything changed since 4 months ago?

[jbeich]

Not much:

• Both CMake and Meson (from this PR) instructions still work
• FreeBSD 13.3/14.0 haven't been released yet, so building with GCC is still easier

105b55239eba added meson subprojects update --reset but it's broken outside of Nix:

$ git clone https://github.com/hyprwm/Hyprland
$ cd Hyprland
$ meson subprojects update --reset
Updating udis86...
  -> Cannot update subproject with no wrap file
Updating tracy...
  -> Cannot update subproject with no wrap file
Updating hyprland-protocols...
  -> Cannot update subproject with no wrap file
Initialized empty Git repository in /tmp/Hyprland/subprojects/wlroots/.git/
remote: Enumerating objects: 480, done.
remote: Counting objects: 100% (480/480), done.
remote: Compressing objects: 100% (466/466), done.
remote: Total 480 (delta 27), reused 160 (delta 5), pack-reused 0
Receiving objects: 100% (480/480), 773.01 KiB | 300.00 KiB/s, done.
Resolving deltas: 100% (27/27), done.
From https://gitlab.freedesktop.org/wlroots/wlroots
 * branch            c74f89d4f84bfed0284d3908aee5d207698c70c5 -> FETCH_HEAD
HEAD is now at c74f89d Avoid using memcpy() to copy structs
Applying diff file "wlroots-meson-build.patch"
Updating wlroots...
  -> c74f89d (grafted, HEAD) Avoid using memcpy() to copy structs [Simon Ser]

$ meson setup build
$ meson compile -C build
[...]
../subprojects/wlroots/include/wlr/render/egl.h:19:10: fatal error: 'wlr/config.h' file not found
#include <wlr/config.h>
         ^~~~~~~~~~~~~~

$ find . -name config.h
./build/subprojects/wlroots/include/wlroots/config.h
./build/subprojects/wlroots/include/config.h
$ find . -name wlr
./subprojects/wlroots/include/wlr
./subprojects/wlroots/include/wlr/wlr
$ readlink ./subprojects/wlroots/include/wlr/wlr
/tmp/Hyprland/subprojects/wlroots/include/wlr

$ cat subprojects/packagefiles/wlroots-meson-build.patch
[...]
-install_subdir('wlr',
+install_subdir('wlroots',
[...]

[fufexan]

but it's broken outside of Nix

Can I fix it somehow or is it better to just not use meson subprojects?

[jbeich]

Better remove wlroots.wrap. It's not consistent with other subprojects (e.g., hyprland-protocols, udis86) or CMake support.

Downstream I use git submodule instead of meson subprojects and system wlroots (a la Nix), so don't need synthetic soversion bump.

[fufexan]

Alright, I'll remove it soon (unless I forget).

[fufexan]

Is there anything left to do in this PR or is it ready? @jbeich

[jbeich]

Tested both Meson and CMake instructions - still good.

[jbeich]

Wait, --skip-subprojects may be wrong for the plugin API.

[fufexan]

Is there anything that can be done on the meson side, so we don't have to include all the commands here? The wlroots.wrap file used to patch the subproject so it properly installed headers, but now I don't know of a better approach.

[jbeich]

I've dropped Meson workaround and rebased after aquamarine switch.