Make the BUILD_INTERFACE of export()ed targets work.

The existing BUILD_INTERFACE code is executed at generate time, which
is too late for export().

2 files changed, 18 insertions, 4 deletions

diff --git a/Tests/ExportImport/Import/A/CMakeLists.txt b/Tests/ExportImport/Import/A/CMakeLists.txt
index 6a2e54c..72d11b6 100644
--- a/Tests/ExportImport/Import/A/CMakeLists.txt
+++ b/Tests/ExportImport/Import/A/CMakeLists.txt
@@ -172,6 +172,8 @@ target_compile_definitions(deps_shared_iface PRIVATE testSharedLibDepends)
 # evaluated correctly. The above already tests the same for the install tree.
 
 add_executable(deps_shared_iface2 deps_shared_iface.cpp)
-target_link_libraries(deps_shared_iface2 bld_testSharedLibDepends)
-target_include_directories(deps_shared_iface2 PRIVATE bld_testSharedLibDepends)
-target_compile_definitions(deps_shared_iface2 PRIVATE bld_testSharedLibDepends)
+target_link_libraries(deps_shared_iface2 bld_testSharedLibDepends bld_subdirlib)
+target_include_directories(deps_shared_iface2 PRIVATE bld_testSharedLibDepends bld_subdirlib)
+target_compile_definitions(deps_shared_iface2
+  PRIVATE bld_testSharedLibDepends TEST_SUBDIR_LIB
+)
diff --git a/Tests/ExportImport/Import/A/deps_shared_iface.cpp b/Tests/ExportImport/Import/A/deps_shared_iface.cpp
index 4f7eb23..14aac0a 100644
--- a/Tests/ExportImport/Import/A/deps_shared_iface.cpp
+++ b/Tests/ExportImport/Import/A/deps_shared_iface.cpp
@@ -2,10 +2,22 @@
 
 #include "testSharedLibDepends.h"
 
+#ifdef TEST_SUBDIR_LIB
+#include "subdir.h"
+#endif
+
 int main(int,char **)
 {
   TestSharedLibDepends dep;
   TestSharedLibRequired req;
 
-  return dep.foo() + req.foo();
+#ifdef TEST_SUBDIR_LIB
+  SubDirObject sdo;
+#endif
+
+  return dep.foo() + req.foo()
+#ifdef TEST_SUBDIR_LIB
+                   + sdo.foo()
+#endif
+                              ;
 }