Compiling xml-security library and it fails

If you get error on compiling XMLSec and you notice an error related to XSECConfig.hpp, then what you need to do is:

./configure --prefix=$SHIB_SP_HOME --without-xalan
vi ./framework/Makefile
XXX
make
make install

in the XXX, you need to search for XSECConfig.hpp and you should notice that it has been included twice in the Makefile (i.e. repeated declaration). Delete the repeated declaration, leave only one declaration there and continue the building steps.

It seems, some versions of gcc/++ will generate this duplicated entries.