From 2b76309a072d2493ee1b5293955b72abfd84b8be Mon Sep 17 00:00:00 2001
From: Aurelien Jacobs <aurel@gnuage.org>
Date: Wed, 17 Sep 2014 17:22:14 +0200
Subject: [PATCH] Usage of std::thread requires linking with appropriate system
 thread library.

This fixes the following link error (on debian sid, gcc 4.9):

Linking CXX executable pulseview
/usr/bin/ld: CMakeFiles/pulseview.dir/pv/sigsession.cpp.o: undefined reference to symbol 'pthread_create@@GLIBC_2.2.5'
//lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
CMakeFiles/pulseview.dir/build.make:2844: recipe for target 'pulseview' failed
---
 CMakeLists.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2fd35b1c..27859b3a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -92,6 +92,8 @@ endif()
 
 find_package(Boost 1.42 COMPONENTS filesystem system REQUIRED)
 
+find_package(Threads REQUIRED)
+
 #===============================================================================
 #= System Introspection
 #-------------------------------------------------------------------------------
@@ -318,6 +320,7 @@ link_directories(${Boost_LIBRARY_DIRS})
 set(PULSEVIEW_LINK_LIBS
 	${Boost_LIBRARIES}
 	${QT_LIBRARIES}
+	${CMAKE_THREAD_LIBS_INIT}
 )
 
 if(STATIC_PKGDEPS_LIBS)
-- 
2.30.2