build: Unbreak build on FreeBSD by adjusting dependencies (#5595)

* deps: add epoll-shim for some BSDs after 863c7b6072

ld: error: undefined symbol: timerfd_create
>>> referenced by EventLoopManager.cpp
>>>               src/Hyprland.p/managers_eventLoop_EventLoopManager.cpp.o:(CEventLoopManager::CEventLoopManager())

ld: error: undefined symbol: timerfd_settime
>>> referenced by EventLoopManager.cpp
>>>               src/Hyprland.p/managers_eventLoop_EventLoopManager.cpp.o:(CEventLoopManager::nudgeTimers())

See also
https://github.com/freebsd/freebsd-src/commit/af93fea71038
https://github.com/netbsd/src/commit/75f1bc6655cf

* deps: drop unused xcb-image after 45945a3e7d

$ pkg install <hyprland dependencies>
$ pkg install meson jq `pkg rquery %dn wlroots` hwdata
$ gmake all
[...]
-- Checking for modules 'xcb;xwayland;xcb-util;xcb-render;xcb-image;xcb-xfixes;xcb-icccm;xcb-composite;xcb-res;xcb-ewmh'
--   Package 'xcb-image' not found
CMake Error at /usr/local/share/cmake/Modules/FindPkgConfig.cmake:619 (message):
  The following required packages were not found:

   - xcb-image

Call Stack (most recent call first):
  /usr/local/share/cmake/Modules/FindPkgConfig.cmake:841 (_pkg_check_modules_internal)
  CMakeLists.txt:177 (pkg_check_modules)

See also
https://github.com/swaywm/wlroots/commit/ae7c3f3d1c56

CMakeLists.txt

@@ -164,6 +164,12 @@ if(HAVE_LIBEXECINFO)
     target_link_libraries(Hyprland execinfo)
 endif()
 
+check_include_file("sys/timerfd.h" HAS_TIMERFD)
+pkg_check_modules(epoll IMPORTED_TARGET epoll-shim)
+if(NOT HAS_TIMERFD AND epoll_FOUND)
+    target_link_libraries(Hyprland PkgConfig::epoll)
+endif()
+
 if(LEGACY_RENDERER)
     message(STATUS "Using the legacy GLES2 renderer!")
     add_compile_definitions(LEGACY_RENDERER)
@@ -174,7 +180,7 @@ if(NO_XWAYLAND)
     add_compile_definitions(NO_XWAYLAND)
 else()
     message(STATUS "XWAYLAND Enabled (NO_XWAYLAND not defined) checking deps...")
-    pkg_check_modules(xdeps REQUIRED IMPORTED_TARGET xcb xwayland xcb-util xcb-render xcb-image xcb-xfixes xcb-icccm xcb-composite xcb-res xcb-ewmh)
+    pkg_check_modules(xdeps REQUIRED IMPORTED_TARGET xcb xwayland xcb-util xcb-render xcb-xfixes xcb-icccm xcb-composite xcb-res xcb-ewmh)
     pkg_check_modules(xcb_errors IMPORTED_TARGET xcb-errors)
     target_link_libraries(Hyprland PkgConfig::xdeps)
     if(xcb_errors_FOUND)

meson.build

@@ -51,6 +51,7 @@ if not have_xwayland
 endif
 
 backtrace_dep = cpp_compiler.find_library('execinfo', required: false)
+epoll_dep = dependency('epoll-shim', required: false) # timerfd on BSDs
 systemd_dep = dependency('libsystemd', required: get_option('systemd'))
 
 if get_option('systemd').enabled()

nix/patches/meson-build.patch

@@ -46,13 +46,14 @@ index 45701f5f..3505cefe 100644
      dependency('cairo'),
      dependency('hyprcursor'),
      dependency('hyprlang', version: '>= 0.3.2'),
-@@ -16,12 +16,12 @@ executable('Hyprland', src,
+@@ -17,11 +17,11 @@ executable('Hyprland', src,
      dependency('egl'),
      dependency('xkbcommon'),
      dependency('libinput'),
 -    xcb_dep,
 +    dependency('xcb', required: get_option('xwayland')),
      backtrace_dep,
+     epoll_dep,
      systemd_dep,
 -    udis86,
 +    dependency('udis86'),

src/meson.build

@@ -19,6 +19,7 @@ executable('Hyprland', src,
     dependency('libinput'),
     xcb_dep,
     backtrace_dep,
+    epoll_dep,
     systemd_dep,
     udis86,