$NetBSD: patch-src_Makevars,v 1.2 2026/07/02 16:01:48 mef Exp $

symbol backtrace_symbols is defined in /usr/lib/libexecinfo

--- src/Makevars.orig	2025-12-30 08:54:49.000000000 +0900
+++ src/Makevars	2026-07-03 00:57:07.911103911 +0900
@@ -24,3 +24,4 @@ PKG_SOURCES = \
 PKG_OBJECTS = $(PKG_SOURECES:.cpp=.o)
 
 $(SHLIB): $(CCTZ_OBJECTS) $(PKG_OBJECTS)
+@@PKG_LIBS@@
