From 59de52cdcf5a6d3fc6045826391d81a0f96820a6 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Thu, 19 Jun 2025 18:01:51 +0000
Subject: sltdl.h: provide definitions for lt_preloaded_symbols & lt_dlsymlist,
 annotate.

---
 include/sltdl/sltdl.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/sltdl/sltdl.h b/include/sltdl/sltdl.h
index cc3c58e..68cc92e 100644
--- a/include/sltdl/sltdl.h
+++ b/include/sltdl/sltdl.h
@@ -20,10 +20,26 @@ extern "C" {
 /*                                                                    */
 /**********************************************************************/
 
+/* exclusively support colon as the path element separator */
 #define LT_PATHSEP_CHAR ':'
 
+/* default dlsym vtable, see also: slibtool -dlpreopen self */
+#define lt_preloaded_symbols lt__PROGRAM__LTX_preloaded_symbols
+
+/* binary-compatible type definitions */
+typedef void * lt_ptr;
+
+struct lt_symdef {
+	const char *    name;
+	void *          address;
+};
+
 typedef struct lt_modctx * lt_dlhandle;
 typedef struct lt_modctl * lt_dladvise;
+typedef struct lt_symdef   lt_dlsymlist;
+
+/* dlsym vtable */
+extern const struct lt_symdef lt__PROGRAM__LTX_preloaded_symbols[];
 
 /* global reference-counting */
 lt_api int lt_dlinit(void);
-- 
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