* [PATCH] drop dlsym use for rb_stderr
@ 2023-01-08 5:20 Eric Wong
0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2023-01-08 5:20 UTC (permalink / raw)
To: mwrap-public
A weak symbol works fine, here.
---
ext/mwrap/mwrap.c | 3 ++-
ext/mwrap/mwrap_core.h | 1 -
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/ext/mwrap/mwrap.c b/ext/mwrap/mwrap.c
index d88fee6..a45bb38 100644
--- a/ext/mwrap/mwrap.c
+++ b/ext/mwrap/mwrap.c
@@ -6,6 +6,7 @@
#include "mwrap_core.h"
static ID id_uminus;
+extern VALUE __attribute__((weak)) rb_stderr;
extern VALUE __attribute__((weak)) rb_cObject;
extern VALUE __attribute__((weak)) rb_eTypeError;
extern VALUE __attribute__((weak)) rb_yield(VALUE);
@@ -33,7 +34,7 @@ static VALUE mwrap_dump(int argc, VALUE *argv, VALUE mod)
if (NIL_P(io))
/* library may be linked w/o Ruby */
- io = *((VALUE *)dlsym(RTLD_DEFAULT, "rb_stderr"));
+ io = rb_stderr;
a.min = NIL_P(min) ? 0 : NUM2SIZET(min);
io = rb_io_get_io(io);
diff --git a/ext/mwrap/mwrap_core.h b/ext/mwrap/mwrap_core.h
index c0eea2f..721e5d3 100644
--- a/ext/mwrap/mwrap_core.h
+++ b/ext/mwrap/mwrap_core.h
@@ -26,7 +26,6 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
-#include <dlfcn.h>
#include <assert.h>
#include <errno.h>
#include <sys/types.h>
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