libsigc++: add c++11 option

Closes #25703.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
google-sparsehash: add c++11 option

Closes #25378.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
cgal: add c++11 option

Closes #25379.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
cairomm: add c++11 option

Closes #25381.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
hicolor-icon-theme 0.13

Closes #25704.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
easy-tag 2.1.9

Closes #25681.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>