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libv4l: add patch to link qv4l2 tool with librt

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The qv4l2 tool in libv4l uses clock_gettime(), so it should link
against librt to build properly with old versions of glibc. Therefore,
we add a patch to libv4l to fix this issue. Autoreconfiguring libv4l
is now necessary since the patch touches Makefile.am.

Fixes:

  http://autobuild.buildroot.net/results/5dff0ec19205e02f6ee373d34cb79f39ac25b609/

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Thomas Petazzoni 2017-05-14 22:06:26 +02:00
parent 00f6de5fc7
commit a8bd6c4072
2 changed files with 34 additions and 0 deletions
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29
package/libv4l/0003-utils-qv4l2-Makefile.am-link-with-librt.patch Normal file
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@ -0,0 +1,29 @@
From 66d1d752976f4b45a5faff2bc68fc2fa9d435c71 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Sun, 14 May 2017 22:04:55 +0200
Subject: [PATCH] utils/qv4l2/Makefile.am: link with librt
qv4l2 uses clock_gettime(), so it should link with librt to be
compatible with old versions of glibc.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
utils/qv4l2/Makefile.am | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/utils/qv4l2/Makefile.am b/utils/qv4l2/Makefile.am
index fd58486..a991d66 100644
--- a/utils/qv4l2/Makefile.am
+++ b/utils/qv4l2/Makefile.am
@@ -7,7 +7,7 @@ qv4l2_SOURCES = qv4l2.cpp general-tab.cpp ctrl-tab.cpp vbi-tab.cpp capture-win.c
v4l2-tpg-core.c v4l2-tpg-colors.c
nodist_qv4l2_SOURCES = moc_qv4l2.cpp moc_general-tab.cpp moc_capture-win.cpp moc_vbi-tab.cpp qrc_qv4l2.cpp
qv4l2_LDADD = ../../lib/libv4l2/libv4l2.la ../../lib/libv4lconvert/libv4lconvert.la \
- ../libv4l2util/libv4l2util.la ../libmedia_dev/libmedia_dev.la
+ ../libv4l2util/libv4l2util.la ../libmedia_dev/libmedia_dev.la -lrt
qv4l2_CPPFLAGS = -I../common
if WITH_QTGL
--
2.7.4

5
package/libv4l/libv4l.mk
View File

@ -11,6 +11,11 @@ LIBV4L_INSTALL_STAGING = YES
LIBV4L_DEPENDENCIES = host-pkgconf
LIBV4L_CONF_OPTS = --disable-doxygen-doc
# 0003-utils-qv4l2-Makefile.am-link-with-librt.patch, host-gettext
# needed for autoreconf to work
LIBV4L_AUTORECONF = YES
LIBV4L_DEPENDENCIES += host-gettext
# fix uclibc-ng configure/compile
LIBV4L_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99'