1 files changed, 12 insertions, 0 deletions
diff --git a/ext/iconv/iconv.c b/ext/iconv/iconv.c
index 964cfff7a0..a25e9cb079 100644
--- a/ext/iconv/iconv.c
+++ b/ext/iconv/iconv.c
@@ -173,6 +173,18 @@ map_charset(VALUE *code)
     return StringValuePtr(*code);
 }
 
+NORETURN(static void rb_iconv_sys_fail(const char *s));
+static void
+rb_iconv_sys_fail(const char *s)
+{
+    if (errno == 0) {
+	rb_raise(rb_eIconvBrokenLibrary, "%s", s);
+    }
+    rb_sys_fail(s);
+}
+
+#define rb_sys_fail(s) rb_iconv_sys_fail(s)
+
 static iconv_t
 iconv_create(VALUE to, VALUE from, struct rb_iconv_opt_t *opt, int *idx)
 {