From 38a472a6a4cf27c45079ebe506bcc1edd9ff488c Mon Sep 17 00:00:00 2001
From: Even Rouault <even.rouault@spatialys.com>
Date: Mon, 17 Jan 2022 19:07:50 +0100
Subject: filemanager.cpp: fix build issue with Cygwin

---
 src/filemanager.cpp | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'src/filemanager.cpp')

diff --git a/src/filemanager.cpp b/src/filemanager.cpp
index 48f19148..8ab8e6c4 100644
--- a/src/filemanager.cpp
+++ b/src/filemanager.cpp
@@ -30,6 +30,11 @@
 #endif
 #define LRU11_DO_NOT_DEFINE_OUT_OF_CLASS_METHODS
 
+#if defined(HAVE_LIBDL) && !defined(_GNU_SOURCE)
+// Required for dladdr() on Cygwin
+#define _GNU_SOURCE
+#endif
+
 #include <errno.h>
 #include <stdlib.h>
 
-- 
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