From c5b02df4598c5fbe7a034b67ee06c506abeb3828 Mon Sep 17 00:00:00 2001
From: James Le Cuirot <chewi@gentoo.org>
Date: Mon, 18 Oct 2021 10:22:09 +0100
Subject: [PATCH] Don't assume RTLD_DEEPBIND is always present on Linux

It's not supported by musl.
---
 configure.ac   | 5 +++++
 src/dlopen.cpp | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 6e41d68e..2cac2dac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -655,6 +655,11 @@ AC_CHECK_FUNCS([gettimeofday])
 AC_CHECK_DECLS([CLOCK_MONOTONIC], [], [], [#include <time.h>])
 
 
+# RTLD_DEEPBIND is not supported by all C libraries.
+
+AC_CHECK_DECLS([RTLD_DEEPBIND], [], [], [#include <dlfcn.h>])
+
+
 # Check for POSIX support.
 
 AS_CASE([$host_os],
diff --git a/src/dlopen.cpp b/src/dlopen.cpp
index f79c401b..14edbc02 100644
--- a/src/dlopen.cpp
+++ b/src/dlopen.cpp
@@ -22,7 +22,7 @@ UAE_DLHANDLE uae_dlopen(const TCHAR *path)
 	}
 #ifdef _WIN32
 	result = LoadLibrary(path);
-#elif defined(LINUX)
+#elif HAVE_DECL_RTLD_DEEPBIND == 1
 	result = dlopen(path, RTLD_NOW | RTLD_DEEPBIND);
 #else
 	result = dlopen(path, RTLD_NOW);
-- 
2.32.0