Update to 1.1.31 release.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@367912 35697150-7ecd-e111-bb59-0022644237b5
Update to 7.0.55 release.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@367913 35697150-7ecd-e111-bb59-0022644237b5
Update to 8.0.12 release.


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@367914 35697150-7ecd-e111-bb59-0022644237b5
math/scilab-toolbox-swt:
- Fix build with clang and drop USE_GCC


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@367915 35697150-7ecd-e111-bb59-0022644237b5