fix static build extern error

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8348b06ceaaf8550562a5af1e4f3ede9c0369f63..ac36cf19cf4b37b83e28c5c975b4d487a6ad1a92 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -75,6 +75,7 @@ if(MSVC)
          $<$<CONFIG:MinSizeRel>:/MT>
          $<$<CONFIG:RelWithDebgInfo>:/MTd>
          )
+       target_compile_definitions(onig PUBLIC -DONIG_EXTERN=)
   endif()
 elseif(CMAKE_COMPILER_IS_GNUCC)
   target_compile_options(onig PRIVATE