cmake: always add ${Boost_INCLUDE_DIRS} to include dirs

we need to -I${Boost_INCLUDE_DIRS} if WITH_SYSTEM_BOOST=ON and boost is
found by FindBoost.cmake.

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c1314ee712fb6c2b642c0ed76fc0a3c73ef9d4c5..379e0df8ee7bcd2754288473c336341da0201693 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -640,8 +640,8 @@ else()
   include(BuildBoost)
   build_boost(1.67
     COMPONENTS ${BOOST_COMPONENTS} ${BOOST_HEADER_COMPONENTS})
-  include_directories(BEFORE SYSTEM ${Boost_INCLUDE_DIRS})
 endif()
+include_directories(BEFORE SYSTEM ${Boost_INCLUDE_DIRS})
 set(Boost_USE_MULTITHREADED ON)
 
 # dashboard angular2 frontend