From f70b4258cdfd5d1d98e908dfc16fa15073d251ff Mon Sep 17 00:00:00 2001
From: Artemis Tosini <lix@artem.ist>
Date: Fri, 7 Jun 2024 03:40:07 +0000
Subject: [PATCH] libutil: Set boost defines for FreeBSD

FreeBSD uses libunwind unwind.h, which does not require
`_GNU_SOURCE` to expose `_Unwind_Backtrace`.

Tell Boost that.

Change-Id: I81e767967b1458118b86d212b5552d4d0a1200d9
---
 src/libutil/fmt.hh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libutil/fmt.hh b/src/libutil/fmt.hh
index df4492993..d015f7e5f 100644
--- a/src/libutil/fmt.hh
+++ b/src/libutil/fmt.hh
@@ -5,8 +5,8 @@
 #include <string>
 #include <optional>
 #include <boost/format.hpp>
-// Darwin stdenv does not define _GNU_SOURCE but does have _Unwind_Backtrace.
-#ifdef __APPLE__
+// Darwin and FreeBSD stdenv do not define _GNU_SOURCE but do have _Unwind_Backtrace.
+#if __APPLE__ || __FreeBSD__
 #define BOOST_STACKTRACE_GNU_SOURCE_NOT_REQUIRED
 #endif
 #include <boost/stacktrace.hpp>