Compile msvc_dbg.c by CMake script (MS VC)

* CMakeLists.txt [MSVC] (SRC): Add extra/msvc_dbg.c; add comment.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a8806602dcb2ab37490a4afd074b82e25f050f78..1285a4f143babe5c052fee55d875e80444e8d9c6 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -290,6 +290,11 @@ elseif (BORLAND)
   add_compile_options(/w-use)
 endif()
 
+# Add implementation of backtrace() and backtrace_symbols().
+if (MSVC)
+  set(SRC ${SRC} extra/msvc_dbg.c)
+endif()
+
 if (BUILD_SHARED_LIBS)
   add_definitions("-DGC_DLL")
 else()