[msvc] Yet another compiler bug work around.

msvc does not include the exprseq::info() method, giving unresolved symbols
when linking. Apparently adding a dummy function "fixes" the problem.

diff --git a/ginac/exprseq.cpp b/ginac/exprseq.cpp
index 2b17e8a..947d32b 100644 (file)
--- a/ginac/exprseq.cpp
+++ b/ginac/exprseq.cpp
@@ -37,4 +37,10 @@ template <> bool exprseq::info(unsigned inf) const
                return inherited::info(inf);
 }
 
+#ifdef _MSC_VER
+  // MSVC does not include exprseq::info() in the library without
+  // defining some kind of dummy function here
+  basic* dummy_func(void) { return new exprseq(); }
+#endif
+
 } // namespace GiNaC