3 files changed, 24 insertions, 1 deletions
diff --git a/Tests/ExportImport/Export/CMakeLists.txt b/Tests/ExportImport/Export/CMakeLists.txt
index e3f23b8..efecd03 100644
--- a/Tests/ExportImport/Export/CMakeLists.txt
+++ b/Tests/ExportImport/Export/CMakeLists.txt
@@ -162,7 +162,6 @@ set_property(TARGET testLibRequired APPEND PROPERTY
     $<BUILD_INTERFACE:BuildOnly_DEFINE>
     $<INSTALL_INTERFACE:InstallOnly_DEFINE>
 )
-
 include(GenerateExportHeader)
 
 add_subdirectory(renamed)
@@ -201,6 +200,11 @@ set_property(TARGET testSharedLibRequired
   PROPERTY
     INTERFACE_CUSTOM_STRING testcontent
 )
+set_property(TARGET testSharedLibRequired APPEND PROPERTY
+  INTERFACE_COMPILE_OPTIONS
+    $<$<CXX_COMPILER_ID:GNU>:-DCUSTOM_COMPILE_OPTION>
+)
+
 
 add_library(testSharedLibDepends SHARED testSharedLibDepends.cpp)
 set_property(TARGET testSharedLibDepends APPEND PROPERTY
diff --git a/Tests/ExportImport/Import/A/CMakeLists.txt b/Tests/ExportImport/Import/A/CMakeLists.txt
index 65b1a36..3bfbc46 100644
--- a/Tests/ExportImport/Import/A/CMakeLists.txt
+++ b/Tests/ExportImport/Import/A/CMakeLists.txt
@@ -169,6 +169,13 @@ target_compile_definitions(deps_shared_iface
     $<$<STREQUAL:$<TARGET_PROPERTY:CUSTOM_STRING>,testcontent>:CUSTOM_STRING_IS_MATCH>
 )
 
+if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+  target_compile_definitions(deps_shared_iface
+    PRIVATE
+      "DO_GNU_TESTS"
+  )
+endif()
+
 if (APPLE OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
   include(CheckCXXCompilerFlag)
   check_cxx_compiler_flag(-fPIE run_pic_test)
@@ -199,6 +206,12 @@ endif()
 
 add_executable(deps_shared_iface2 deps_shared_iface.cpp)
 target_link_libraries(deps_shared_iface2 bld_testSharedLibDepends bld_subdirlib)
+if(CMAKE_CXX_COMPILER_ID MATCHES "GNU")
+  target_compile_definitions(deps_shared_iface2
+    PRIVATE
+      "DO_GNU_TESTS"
+  )
+endif()
 target_compile_definitions(deps_shared_iface2
   PRIVATE TEST_SUBDIR_LIB
   $<$<BOOL:$<TARGET_PROPERTY:POSITION_INDEPENDENT_CODE>>:PIC_PROPERTY_IS_ON>
diff --git a/Tests/ExportImport/Import/A/deps_shared_iface.cpp b/Tests/ExportImport/Import/A/deps_shared_iface.cpp
index 32e04db..d5e4de3 100644
--- a/Tests/ExportImport/Import/A/deps_shared_iface.cpp
+++ b/Tests/ExportImport/Import/A/deps_shared_iface.cpp
@@ -25,6 +25,12 @@
 #include "renamed.h"
 #endif
 
+#ifdef DO_GNU_TESTS
+#ifndef CUSTOM_COMPILE_OPTION
+#error Expected CUSTOM_COMPILE_OPTION
+#endif
+#endif
+
 int main(int,char **)
 {
   TestSharedLibDepends dep;