Bumped the version of eigen to 3.3.7, which fixes issues when compiling with GCC7 (notably int-in-bool-context errors, fixed in 3.3.5), in addition to various other issues noted in the eigen change logs: http://eigen.tuxfamily.org/index.php?title=ChangeLog
Legal hashes are unchanged in 3.3.7
Signed-off-by: Reed Nightingale <reed.nightingale@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit 06a1ff4fd3)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
e47fa646dc