From 5ed27ef8b6362ee2a30dd8f6094fa8ca32a97439 Mon Sep 17 00:00:00 2001
From: Tom Jones <thj@freebsd.org>
Date: Mon, 29 Jan 2024 14:38:19 +0000
Subject: build: Discover libepoll-shim on FreeBSD

FreeBSD doesn't offer epoll, but an implementation which uses kqueue is
available as an external library. On FreeBSD in subsystems which require
epoll have cmake look for libepoll-shim.

Type: improvement
Change-Id: Iafd5406a9e2ebaa53fd94034489ffbbf87a7d040
Signed-off-by: Tom Jones <thj@freebsd.org>
---
 src/CMakeLists.txt | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'src/CMakeLists.txt')

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 9415c4d44fb..68d0a4fe64e 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -244,6 +244,21 @@ include(cmake/library.cmake)
 include(cmake/exec.cmake)
 include(cmake/plugin.cmake)
 
+##############################################################################
+# FreeBSD - use epoll-shim
+##############################################################################
+set(EPOLL_LIB "")
+if("${CMAKE_SYSTEM_NAME}" STREQUAL "FreeBSD")
+  find_path(EPOLL_SHIM_INCLUDE_DIR NAMES sys/epoll.h HINTS /usr/local/include/libepoll-shim)
+  find_library(EPOLL_SHIM_LIB NAMES epoll-shim HINTS /usr/local/lib)
+
+  if(EPOLL_SHIM_INCLUDE_DIR AND EPOLL_SHIM_LIB)
+    message(STATUS "Found epoll-shim in ${EPOLL_SHIM_INCLUDE_DIR}")
+    include_directories(${EPOLL_SHIM_INCLUDE_DIR})
+    string(JOIN " " EPOLL_LIB "${EPOLL_SHIM_LIB}")
+  endif()
+endif()
+
 ##############################################################################
 # subdirs - order matters
 ##############################################################################
-- 
cgit 1.2.3-korg