Hi.
This is my fist attempt to send a patch for v4l-utils project.
I maintain v4l-utils package for Alpine Linux (www.alpinelinux.org), a
musl-based distro.
This patch allows the build for v4l-utils by allowing alternatives to
GLIBC assumptions.
Thanks for considering.
--
:: Francesco ::
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From 71f399cb1399c35ff4ce165c2cec0fcd3256d34e Mon Sep 17 00:00:00 2001
From: Francesco Colista <fcolista@xxxxxxxxxxxxx>
Date: Mon, 20 Feb 2017 10:16:01 +0100
Subject: [PATCH] utils/ir-ctl/ir-ctl.c: fix build with musl library
This patch allows to build correctly v4l-utils on musl-based distributions.
It provides alternative to glibc assumptions.
---
utils/ir-ctl/ir-ctl.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/utils/ir-ctl/ir-ctl.c b/utils/ir-ctl/ir-ctl.c
index bc58cee0..0bd0ddcc 100644
--- a/utils/ir-ctl/ir-ctl.c
+++ b/utils/ir-ctl/ir-ctl.c
@@ -42,6 +42,20 @@
# define _(string) string
#endif
+#if !defined(__GLIBC__)
+
+/* Evaluate EXPRESSION, and repeat as long as it returns -1 with `errno'
+ set to EINTR. */
+
+# define TEMP_FAILURE_RETRY(expression) \
+ (__extension__ \
+ ({ long int __result; \
+ do __result = (long int) (expression); \
+ while (__result == -1L && errno == EINTR); \
+ __result; }))
+
+#endif
+
# define N_(string) string
--
2.11.1
