From 4fbb9f952726a12b1938ea7af9e88ae8b234395e Mon Sep 17 00:00:00 2001
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From: Dmitry Rozhkov <dmitry.rozhkov@linux.intel.com>
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Date: Wed, 19 Jul 2017 11:17:11 +0300
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Subject: [PATCH] [roscpp] add missing header for writev().
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After an update of gcc and glibc roscpp started to fail builds with the error:
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/home/rojkov/work/ros/build/tmp-glibc/work/i586-oe-linux/roscpp/1.11.21-r0/ros_comm-1.11.21/clients/roscpp/src/libros/transport/transport_udp.cpp:579:25: error: 'writev' was not declared in this scope
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ssize_t num_bytes = writev(sock_, iov, 2);
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^~~~~~
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According to POSIX.1-2001 the function writev() is declared in sys/uio.h.
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The patch includes the missing header for POSIX compliant systems.
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Upstream-Status: Accepted [https://github.com/ros/ros_comm/pull/1105]
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Signed-off-by: Dmitry Rozhkov <dmitry.rozhkov@linux.intel.com>
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---
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clients/roscpp/src/libros/transport/transport_udp.cpp | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/clients/roscpp/src/libros/transport/transport_udp.cpp b/clients/roscpp/src/libros/transport/transport_udp.cpp
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index c7d8298..47d969e 100644
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--- a/clients/roscpp/src/libros/transport/transport_udp.cpp
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+++ b/clients/roscpp/src/libros/transport/transport_udp.cpp
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@@ -48,6 +48,9 @@
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#elif defined(__ANDROID__)
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// For readv() and writev() on ANDROID
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#include <sys/uio.h>
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+#elif defined(_POSIX_VERSION)
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+ // For readv() and writev()
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+ #include <sys/uio.h>
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#endif
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namespace ros
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--
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2.9.3
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