External objects may cause #include to be processed many times

[Martin Sjölund]

Generate #include-directive only _once_ (not in the header-file!)
{{{ class ShapeObject "ShapeObject"

extends ExternalObject;
function constructor

output ShapeObject component;
external "C" component = initShapeObject();
annotation(dll="expblend.dll",Include="#include <expblend.c>");

end constructor;

function destructor "Release storage of table"

input ShapeObject component;
external "C" closeShapeObject(component);
annotation(dll="expblend.dll",Include="#include <expblend.c>");

end destructor;

end ShapeObject;

}}}

[Martin Sjölund]

Resolved in r8329