De-duplicate symbols listed in generated module definition files

MS tools have a limit on the number of symbols that can be listed
in a `.def` file.  If multiple `.obj` files provide a symbol then
avoid listing it more than once in the generated `.def` file to
avoid counting toward the limit.

1 files changed, 29 insertions, 0 deletions

diff --git a/Source/bindexplib.h b/Source/bindexplib.h
new file mode 100644
index 0000000..8661a4a
--- /dev/null
+++ b/Source/bindexplib.h
@@ -0,0 +1,29 @@
+/*============================================================================
+  CMake - Cross Platform Makefile Generator
+  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+
+#ifndef bindexplib_h
+#define bindexplib_h
+
+#include "cmStandardIncludes.h"
+
+
+class bindexplib
+{
+public:
+  bindexplib() {}
+  bool AddObjectFile(const char* filename);
+  void WriteFile(FILE* file);
+private:
+  std::set<std::string> Symbols;
+  std::set<std::string> DataSymbols;
+};
+#endif