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libv4l: fix libdvbv5 musl compile

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Add optional copy of TEMP_FAILURE_RETRY macro.

Fixes [1]:

  ../../lib/libdvbv5/.libs/libdvbv5.so: undefined reference to `TEMP_FAILURE_RETRY'

[1] http://autobuild.buildroot.net/results/7aea0cbb9e7fe7d9919c9be04ba4567ddcf4e15e

Patch submitted upstream:
https://www.mail-archive.com/linux-media@vger.kernel.org/msg127134.html

[Peter: add upstream submission link as suggested by Baruch]
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
This commit is contained in:
Peter Seiderer 2018-03-04 09:36:53 +01:00 committed by Peter Korsgaard
parent 047cec5993
commit dd95e2c331
1 changed files with 39 additions and 0 deletions
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39
package/libv4l/0003-libdvbv5-add-optional-copy-of-TEMP_FAILURE_RETRY-mac.patch Normal file
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@ -0,0 +1,39 @@
From abfe3e7b2b4af1de9b891f3a7a996b70533b0a27 Mon Sep 17 00:00:00 2001
From: Peter Seiderer <ps.report@gmx.net>
Date: Sun, 4 Mar 2018 09:07:51 +0100
Subject: [PATCH] libdvbv5: add optional copy of TEMP_FAILURE_RETRY macro (fix
musl compile)
Fixes:
../../lib/libdvbv5/.libs/libdvbv5.so: undefined reference to `TEMP_FAILURE_RETRY'
[Upstream: https://www.mail-archive.com/linux-media@vger.kernel.org/msg127134.html]
Signed-off-by: Peter Seiderer <ps.report@gmx.net>
---
lib/libdvbv5/dvb-dev-local.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/lib/libdvbv5/dvb-dev-local.c b/lib/libdvbv5/dvb-dev-local.c
index 8bc99d1..7a76d65 100644
--- a/lib/libdvbv5/dvb-dev-local.c
+++ b/lib/libdvbv5/dvb-dev-local.c
@@ -44,6 +44,15 @@
# define _(string) string
#endif
+/* taken from glibc unistd.h */
+#ifndef TEMP_FAILURE_RETRY
+#define TEMP_FAILURE_RETRY(expression) \
+ ({ long int __result; \
+ do __result = (long int) (expression); \
+ while (__result == -1L && errno == EINTR); \
+ __result; })
+#endif
+
struct dvb_dev_local_priv {
dvb_dev_change_t notify_dev_change;
--
2.16.2