WIP: Moving radixdl/visibility.hh to radixcore.

cmake/Dependencies.cmake

 TRIBITS_PACKAGE_DEFINE_DEPENDENCIES(
    SUBPACKAGES_DIRS_CLASSIFICATIONS_OPTREQS
      bug  radixbug      SS OPTIONAL
-     dl   radixdl       SS OPTIONAL
      core radixcore     SS OPTIONAL
+     dl   radixdl       SS OPTIONAL
      pattern radixpattern SS OPTIONAL
      algorithm radixalgorithm SS OPTIONAL
      para radixpara     SS OPTIONAL

radixcore/CMakeLists.txt

 TRIBITS_SUBPACKAGE(core)
 
+TRIBITS_CONFIGURE_FILE(visibility.hh)
+
 SET(HEADERS
 system.hh
 stringfunctions.i.hh

radixcore/cmake/visibility.hh.in

+#ifndef RADIX_RADIXCORE_VISIBILITY_HH_
+#define RADIX_RADIXCORE_VISIBILITY_HH_
+#cmakedefine BUILD_SHARED_LIBS @BUILD_SHARED_LIBS@
+#if defined _WIN32 || defined __CYGWIN__
+  #define RADIX_PUBLIC __declspec(dllexport)
+  #define RADIX_LOCAL
+#else
+  #define RADIX_PUBLIC
+  #define RADIX_LOCAL __declspec(dllimport)
+#endif
+#endif /* RADIX_RADIXCORE_VISIBILITY_HH_*/

radixdl/CMakeLists.txt

 TRIBITS_SUBPACKAGE(dl)
 
-TRIBITS_CONFIGURE_FILE(visibility.hh)
 
 SET(SOURCE
 library.cc

radixdl/cmake/Dependencies.cmake

 TRIBITS_PACKAGE_DEFINE_DEPENDENCIES(
-LIB_REQUIRED_PACKAGES
+LIB_REQUIRED_PACKAGES radixcore
 LIB_OPTIONAL_PACKAGES
 TEST_REQUIRED_PACKAGES
 TEST_OPTIONAL_PACKAGES

radixdl/visibility.hh

+#ifndef RADIX_RADIXDL_VISIBILITY_HH_
+#define RADIX_RADIXDL_VISIBILITY_HH_
+// Proxy include to support backward compatability.
+#include "radixcore/visibility.hh"
+#endif /* RADIX_RADIXDL_VISIBILITY_HH_*/