AnyImageImporter: fix linking of test on Windows.

src/MagnumPlugins/AnyImageImporter/AnyImageImporter.h

@@ -32,12 +32,16 @@
 #include <Magnum/Trade/AbstractImporter.h>
 
 #ifndef DOXYGEN_GENERATING_OUTPUT
+#ifndef MAGNUM_ANYIMAGEIMPORTER_BUILD_STATIC
     #if defined(AnyImageImporter_EXPORTS) || defined(AnyImageImporterObjects_EXPORTS)
         #define MAGNUM_ANYIMAGEIMPORTER_EXPORT CORRADE_VISIBILITY_EXPORT
     #else
         #define MAGNUM_ANYIMAGEIMPORTER_EXPORT CORRADE_VISIBILITY_IMPORT
     #endif
-    #define MAGNUM_ANYIMAGEIMPORTER_LOCAL CORRADE_VISIBILITY_LOCAL
+#else
+    #define MAGNUM_ANYIMAGEIMPORTER_EXPORT CORRADE_VISIBILITY_STATIC
+#endif
+#define MAGNUM_ANYIMAGEIMPORTER_LOCAL CORRADE_VISIBILITY_LOCAL
 #endif
 
 namespace Magnum { namespace Trade {

src/MagnumPlugins/AnyImageImporter/Test/CMakeLists.txt

@@ -33,3 +33,10 @@ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/configure.h.cmake
                ${CMAKE_CURRENT_BINARY_DIR}/configure.h)
 
 corrade_add_test(AnyImageImporterTest Test.cpp LIBRARIES MagnumAnyImageImporterTestLib)
+# On Win32 we need to avoid dllimporting TgaImporter symbols, because it would
+# search for the symbols in some DLL even when they were linked statically.
+# However it apparently doesn't matter that they were dllexported when building
+# the static library. EH.
+if(WIN32)
+    set_target_properties(AnyImageImporterTest PROPERTIES COMPILE_FLAGS "-DMAGNUM_ANYIMAGEIMPORTER_BUILD_STATIC")
+endif()