From 9bf6bf2c78bb76f9db1a5dc44eea08e15a50cd9d Mon Sep 17 00:00:00 2001
From: Dennis Luxen <luxen@kit.edu>
Date: Mon, 28 Oct 2013 14:51:20 +0100
Subject: [PATCH] link against on linux/gcc

---
 CMakeLists.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 468afec51..ef308f08c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,7 +66,7 @@ if(CMAKE_BUILD_TYPE MATCHES Release)
     message(STATUS "Configuring OSRM in release mode")
 endif(CMAKE_BUILD_TYPE MATCHES Release)
 
-#Configuring compilers
+# Configuring compilers
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
 	# using Clang
 	set(CMAKE_CXX_FLAGS "-Wall -Wno-unknown-pragmas -Wno-unneeded-internal-declaration")
@@ -84,6 +84,7 @@ elseif ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
 	# using Visual Studio C++
 endif()
 
+# Configuring other platform dependencies
 if(APPLE)
 	SET(CMAKE_OSX_ARCHITECTURES "x86_64")
 	message(STATUS "Set Architecture to x64 on OS X")
@@ -95,6 +96,10 @@ if(APPLE)
     ENDIF (DARWIN_VERSION GREATER 12)
 endif()
 
+if(UNIX AND NOT APPLE)
+    target_link_libraries(osrm-datastore rt)
+endif(UNIX AND NOT APPLE)
+
 #Check Boost
 set(BOOST_MIN_VERSION "1.44.0")
 find_package( Boost ${BOOST_MIN_VERSION} COMPONENTS ${BOOST_COMPONENTS} REQUIRED )