development updated (d3dd6fa0 -> 752e2f33)

ildumi pushed a change to branch development.

    from d3dd6fa0 libtool: Correct DLL Installation Path for mingw
     new 938a0f4b ltmain.in: Fix --preserve-dup-deps stripping duplicates
     new 752e2f33 libtool: Alter test to expect pass


Summary of changes:
 build-aux/ltmain.in     | 71 ++++++++++++++++++++++++++-----------------------
 tests/duplicate_deps.at |  3 +--
 2 files changed, 39 insertions(+), 35 deletions(-)