Applies OPENEXR_DLL only to shared libraries and no longer to static …

…libraries

Signed-off-by: Transporter <ogre.transporter@gmail.com>

IlmBase/config/LibraryDefine.cmake

@@ -12,8 +12,6 @@ function(ILMBASE_DEFINE_LIBRARY libname)
   # only do the object library mechanism in a few cases:
   # - xcode doesn't handle "empty" targets (i.e. add_library with
   #   an object lib only)
-  # - under windows, we don't want the static library targets to
-  #   have the export tags
   # - if we're not compiling both, don't add the extra layer to prevent
   #   extra compiles since we aren't doing that anyway
   if(ILMBASE_BUILD_BOTH_STATIC_SHARED AND NOT (APPLE OR WIN32))
@@ -39,7 +37,7 @@ function(ILMBASE_DEFINE_LIBRARY libname)
   target_compile_features(${objlib} PUBLIC cxx_std_${OPENEXR_CXX_STANDARD})
   if(ILMBASE_CURLIB_PRIV_EXPORT AND BUILD_SHARED_LIBS)
     target_compile_definitions(${objlib} PRIVATE ${ILMBASE_CURLIB_PRIV_EXPORT})
-    if(WIN32)
+    if(WIN32 AND NOT ILMBASE_BUILD_BOTH_STATIC_SHARED)
       target_compile_definitions(${objlib} PUBLIC OPENEXR_DLL)
     endif()
   endif()
@@ -113,6 +111,7 @@ function(ILMBASE_DEFINE_LIBRARY libname)
       target_link_libraries(${libname}_static INTERFACE ${objlib})
     else()
       # have to build multiple times... but have different flags anyway (i.e. no dll)
+      target_compile_definitions(${libname} PRIVATE OPENEXR_DLL)
       set(curlib ${libname}_static)
       add_library(${curlib} STATIC ${ILMBASE_CURLIB_SOURCES})
       target_compile_features(${curlib} PUBLIC cxx_std_${OPENEXR_CXX_STANDARD})