diff --git a/polly/CMakeLists.txt b/polly/CMakeLists.txt
index 9ddc0f7ff81d..af0263b7810e 100644
--- a/polly/CMakeLists.txt
+++ b/polly/CMakeLists.txt
@@ -49,10 +49,10 @@ if (NOT DEFINED LLVM_MAIN_SRC_DIR)
         "${UNITTEST_DIR}/googletest"
         "${UNITTEST_DIR}/googlemock"
         )
-      target_link_libraries(gtest -lpthread)
+      target_link_libraries(gtest PUBLIC -lpthread)
 
       add_library(gtest_main ${UNITTEST_DIR}/UnitTestMain/TestMain.cpp)
-      target_link_libraries(gtest_main gtest)
+      target_link_libraries(gtest_main PUBLIC gtest)
 
       set(POLLY_GTEST_AVAIL 1)
     endif()
diff --git a/polly/cmake/polly_macros.cmake b/polly/cmake/polly_macros.cmake
index 32bed50bb060..e48203871884 100644
--- a/polly/cmake/polly_macros.cmake
+++ b/polly/cmake/polly_macros.cmake
@@ -28,13 +28,13 @@ macro(add_polly_library name)
   endif( LLVM_COMMON_DEPENDS )
   if( LLVM_USED_LIBS )
     foreach(lib ${LLVM_USED_LIBS})
-      target_link_libraries( ${name} ${lib} )
+      target_link_libraries( ${name} PUBLIC ${lib} )
     endforeach(lib)
   endif( LLVM_USED_LIBS )
 
   if(POLLY_LINK_LIBS)
     foreach(lib ${POLLY_LINK_LIBS})
-      target_link_libraries(${name} ${lib})
+      target_link_libraries(${name} PUBLIC ${lib})
     endforeach(lib)
   endif(POLLY_LINK_LIBS)
 
diff --git a/polly/lib/CMakeLists.txt b/polly/lib/CMakeLists.txt
index cba633af2dd9..0e81a31295ba 100644
--- a/polly/lib/CMakeLists.txt
+++ b/polly/lib/CMakeLists.txt
@@ -75,14 +75,14 @@ set_target_properties(PollyCore PROPERTIES FOLDER "Polly")
 # LLVM_POLLY_LINK_INTO_TOOLS=ON, its dependencies like PollyISL are linked as
 # well.
 add_polly_library(Polly $<TARGET_OBJECTS:PollyCore>)
-target_link_libraries(Polly
+target_link_libraries(Polly PUBLIC
   ${ISL_TARGET}
   ${JSONCPP_LIBRARIES}
 )
 
 # Additional dependencies for Polly-ACC.
 if (GPU_CODEGEN)
-  target_link_libraries(Polly PollyPPCG)
+  target_link_libraries(Polly PUBLIC PollyPPCG)
 endif ()
 
 
@@ -100,9 +100,9 @@ if (LLVM_LINK_LLVM_DYLIB)
   # (their LLVM*.a/so and their copies in libLLVM.so)
   # which results in errors when the two instances try to register the same
   # command-line switches.
-  target_link_libraries(Polly LLVM)
+  target_link_libraries(Polly PUBLIC LLVM)
 else ()
-  target_link_libraries(Polly
+  target_link_libraries(Polly PUBLIC
     LLVMSupport
     LLVMCore
     LLVMScalarOpts
@@ -145,9 +145,9 @@ else ()
   # hosts. This is not the case for bugpoint. Use LLVM_POLLY_LINK_INTO_TOOLS=ON
   # instead which will automatically resolve the additional dependencies by
   # Polly.
-  target_link_libraries(LLVMPolly ${ISL_TARGET} ${JSONCPP_LIBRARIES})
+  target_link_libraries(LLVMPolly PUBLIC ${ISL_TARGET} ${JSONCPP_LIBRARIES})
   if (GPU_CODEGEN)
-    target_link_libraries(LLVMPolly PollyPPCG)
+    target_link_libraries(LLVMPolly PUBLIC PollyPPCG)
   endif ()
 
   set_target_properties(LLVMPolly
diff --git a/polly/lib/External/CMakeLists.txt b/polly/lib/External/CMakeLists.txt
index b3c6e73a7a00..8ab07d813cb4 100644
--- a/polly/lib/External/CMakeLists.txt
+++ b/polly/lib/External/CMakeLists.txt
@@ -281,7 +281,7 @@ if (POLLY_BUNDLED_ISL)
     )
   set_target_properties(polly-isl-test PROPERTIES FOLDER "Polly")
 
-  target_link_libraries(polly-isl-test
+  target_link_libraries(polly-isl-test PRIVATE
     PollyISL
     )
 
@@ -342,7 +342,7 @@ add_polly_library(PollyPPCG
   ${PPCG_FILES}
 )
 
-target_link_libraries(PollyPPCG ${ISL_TARGET})
+target_link_libraries(PollyPPCG PUBLIC ${ISL_TARGET})
 
 # Disable warnings for upstream projects.
 if (MSVC)