From: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Date: Mon, 16 Feb 2015 17:13:20 +0000 (-0500)
Subject: build-sys: re-add old symbols for abi compat
X-Git-Tag: v219~13
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=93a1e66efd4b0f4cda29c467d20d0f7510c0b3a8

build-sys: re-add old symbols for abi compat

For two releases those exported with version 183 by mistake, and then
they were fixed to have version 215 (015419c0df libudev: fix symbol
version for udev_queue_flush() and udev_queue_get_fd()). But that
breaks ABI compatibility for binaries compiled with udev from before
that commit. There most likely very few such binaries, if any, but as
a matter of principle we should export the old symbols too, in order
to keep full compatibility.
---

diff --git a/src/libudev/libudev-queue.c b/src/libudev/libudev-queue.c
index 8ef1f3d4b..ae0b415e3 100644
--- a/src/libudev/libudev-queue.c
+++ b/src/libudev/libudev-queue.c
@@ -268,3 +268,6 @@ _public_ int udev_queue_flush(struct udev_queue *udev_queue) {
 
         return flush_fd(udev_queue->fd);
 }
+
+__asm__(".symver udev_queue_flush,udev_queue_flush@LIBUDEV_183");
+__asm__(".symver udev_queue_get_fd,udev_queue_get_fd@LIBUDEV_183");