From 99cba252f456fa69030b85bad43f2f1d428206a7 Mon Sep 17 00:00:00 2001
From: Witold Filipczyk <witekfl@poczta.onet.pl>
Date: Fri, 8 Mar 2024 16:03:49 +0100
Subject: [PATCH] [meson] Check whether libev can be used

---
 meson.build | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/meson.build b/meson.build
index 69455ef2..4d49ff92 100644
--- a/meson.build
+++ b/meson.build
@@ -385,6 +385,15 @@ if conf_data.get('CONFIG_LIBEV')
     eventdeps = compiler.find_library('ev', static: st)
     deps += eventdeps
     conf_data.set('CONFIG_LIBEVENT', false)
+    code1 = '''#include <libev/event.h>
+    struct ev_timer timer;
+    '''
+    code2 = '''#include <event.h>
+    struct ev_timer timer;
+    '''
+    if not compiler.compiles(code1) and not compiler.compiles(code2)
+        error('libev cannot be used. Likely not installed libev-libevent-dev')
+    endif
 elif conf_data.get('CONFIG_LIBEVENT')
     eh = '#include <event2/event.h>'
     eventdeps = dependency('libevent', static: st, version: '>=2.0.0')