From 94179adeebb24f390cad6abed1f1f8f89c41f451 Mon Sep 17 00:00:00 2001
From: Daiki Ueno <dueno@redhat.com>
Date: Wed, 11 Sep 2019 12:05:15 +0200
Subject: [PATCH] autotools: Use symbol versioning if possible

The meson build already using it for:
https://github.com/mesonbuild/meson/issues/3047

Suggested by Jan Alexander Steffens
---
 configure.ac        | 3 +++
 p11-kit/Makefile.am | 9 +++++++--
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 6ff4aa7..37cda41 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,6 +36,9 @@ AC_USE_SYSTEM_EXTENSIONS
 LT_PREREQ([2.2.6])
 LT_INIT([dlopen disable-static])
 
+dnl Check if -Wl,--version-script is supported by the linker
+gl_LD_VERSION_SCRIPT
+
 dnl Checks for programs.
 AC_PROG_CC
 AC_PROG_CPP
diff --git a/p11-kit/Makefile.am b/p11-kit/Makefile.am
index 4cb540a..234a5a6 100644
--- a/p11-kit/Makefile.am
+++ b/p11-kit/Makefile.am
@@ -86,8 +86,13 @@ libp11_kit_la_CFLAGS = $(COMMON_CFLAGS)
 
 libp11_kit_la_LDFLAGS = \
 	-no-undefined \
-	-version-info $(P11KIT_LT_RELEASE) \
-	-export-symbols-regex '^C_GetFunctionList|^p11_kit_'
+	-version-info $(P11KIT_LT_RELEASE)
+
+if HAVE_LD_VERSION_SCRIPT
+libp11_kit_la_LDFLAGS += -Wl,--version-script=$(srcdir)/p11-kit/libp11-kit.map
+else
+libp11_kit_la_LDFLAGS += -export-symbols-regex '^C_GetFunctionList|^p11_kit_'
+endif
 
 libp11_kit_la_SOURCES = \
 	p11-kit/proxy.c p11-kit/proxy.h p11-kit/proxy-init.c \
-- 
2.50.1