From 246452c8e0be506c27c2c192690f0a4b400916a3 Mon Sep 17 00:00:00 2001
From: Clayton Craft <clayton@craftyguy.net>
Date: Fri, 30 Jul 2021 23:43:16 -0700
Subject: [PATCH] linux: only enable backtrace when using glibc

backtrace and backtrace_symbols are in glibc, and not POSIX-compliant
libc (like musl).
---
 src/logic/map_objects/backtrace.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/logic/map_objects/backtrace.cc b/src/logic/map_objects/backtrace.cc
index 71e1f4e332..011dc882a0 100644
--- a/src/logic/map_objects/backtrace.cc
+++ b/src/logic/map_objects/backtrace.cc
@@ -21,15 +21,18 @@
 
 #ifndef _WIN32
 #ifndef __APPLE__
+#if !defined(__linux__) || defined(__GLIBC__)
 
 #include <execinfo.h>
 #endif
 #endif
+#endif
 
 std::string get_backtrace() {
 	std::string result("Backtrace:\n");
 #ifndef _WIN32
 #ifndef __APPLE__
+#if !defined(__linux__) || defined(__GLIBC__)
 #define BACKTRACE_STACKSIZE 24
 
 	void* stack[BACKTRACE_STACKSIZE];
@@ -41,6 +44,7 @@ std::string get_backtrace() {
 	}
 	free(list);
 #endif
+#endif
 #endif
 	return result;
 }
-- 
2.32.0