diff --git a/projects/rocr-runtime/rocrtst/samples/CMakeLists.txt b/projects/rocr-runtime/rocrtst/samples/CMakeLists.txt
index fa74c44eef..607b561292 100755
--- a/projects/rocr-runtime/rocrtst/samples/CMakeLists.txt
+++ b/projects/rocr-runtime/rocrtst/samples/CMakeLists.txt
@@ -173,7 +173,7 @@ if(${BUILD_TYPE} STREQUAL "Debug")
 add_definitions(-DDEBUG)
 endif()
 
-add_definitions(-D__linux__)
+#add_definitions(-D__linux__)
 add_definitions(-DLITTLEENDIAN_CPU=1)
 
 #
diff --git a/projects/rocr-runtime/rocrtst/suites/test_common/CMakeLists.txt b/projects/rocr-runtime/rocrtst/suites/test_common/CMakeLists.txt
index 919ebf3ca8..486cc32c41 100755
--- a/projects/rocr-runtime/rocrtst/suites/test_common/CMakeLists.txt
+++ b/projects/rocr-runtime/rocrtst/suites/test_common/CMakeLists.txt
@@ -212,7 +212,7 @@ add_definitions(-DROCRTST_EMULATOR_BUILD=1)
 endif()
 
 
-add_definitions(-D__linux__)
+#add_definitions(-D__linux__)
 add_definitions(-DLITTLEENDIAN_CPU=1)
 
 #
diff --git a/projects/rocr-runtime/runtime/hsa-ext-finalize/CMakeLists.txt b/projects/rocr-runtime/runtime/hsa-ext-finalize/CMakeLists.txt
index 700ad04346..6c6dbdcba2 100755
--- a/projects/rocr-runtime/runtime/hsa-ext-finalize/CMakeLists.txt
+++ b/projects/rocr-runtime/runtime/hsa-ext-finalize/CMakeLists.txt
@@ -25,7 +25,7 @@ list ( APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../cmake_modules" )
 include ( utils )
 
 ## Compiler preproc definitions.
-add_definitions ( -D__linux__ )
+#add_definitions ( -D__linux__ )
 add_definitions ( -DUNIX_OS )
 add_definitions ( -DLINUX )
 add_definitions ( -D__AMD64__ )
diff --git a/projects/rocr-runtime/runtime/hsa-ext-image/CMakeLists.txt b/projects/rocr-runtime/runtime/hsa-ext-image/CMakeLists.txt
index 9ca3348703..6c286e3d06 100644
--- a/projects/rocr-runtime/runtime/hsa-ext-image/CMakeLists.txt
+++ b/projects/rocr-runtime/runtime/hsa-ext-image/CMakeLists.txt
@@ -22,7 +22,7 @@ list ( APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../cmake_modules" )
 include ( utils )
 
 ## Compiler preproc definitions.
-add_definitions ( -D__linux__ )
+#add_definitions ( -D__linux__ )
 add_definitions ( -DUNIX_OS )
 add_definitions ( -DLINUX )
 add_definitions ( -D__AMD64__ )
diff --git a/projects/rocr-runtime/runtime/hsa-runtime-tools/CMakeLists.txt b/projects/rocr-runtime/runtime/hsa-runtime-tools/CMakeLists.txt
index 87463f513f..ac8bccdfa2 100755
--- a/projects/rocr-runtime/runtime/hsa-runtime-tools/CMakeLists.txt
+++ b/projects/rocr-runtime/runtime/hsa-runtime-tools/CMakeLists.txt
@@ -22,7 +22,7 @@ list ( APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../cmake_modules" )
 include ( utils )
 
 ## Compiler preproc definitions.
-add_definitions ( -D__linux__ )
+#add_definitions ( -D__linux__ )
 add_definitions ( -DUNIX_OS )
 add_definitions ( -DLINUX )
 add_definitions ( -D__AMD64__ )