commit c009c4c1800086e7f4c4e80939e9ddc8964c8e12
Author: Mario Haustein <mario.haustein@hrz.tu-chemnitz.de>
Date:   Thu Aug 4 00:27:08 2022 +0200

    Include execinfo.h only if available

Bug: https://bugs.gentoo.org/873016
Upstream: https://gitlab.com/free-astro/siril/-/merge_requests/284

diff --git a/src/core/signals.c b/src/core/signals.c
index 74100b3a..0eefd460 100644
--- a/src/core/signals.c
+++ b/src/core/signals.c
@@ -25,7 +25,7 @@
 #ifdef _WIN32
 #include <windows.h>
 #include <dbghelp.h>
-#else
+#elif HAVE_EXECINFO_H
 #include <execinfo.h>
 #endif