[PATCH] gnulib-tool.py: Follow gnulib-tool changes, part 57.

[Collin Funk]

This patch implements the --extract-recursive-link-directive and
--extract-recursive-link-directive options.

For --extract-recursive-dependencies, the 'canonicalize' macro seemed
to work well since it has many dependencies:

$ gnulib-tool.py --extract-recursive-dependencies canonicalize > test-python 
2>&1
gnulib-tool.sh --extract-recursive-dependencies canonicalize > test-shell 2>&1
git diff --no-index test-python test-shell

I'm not sure if there is a very good test case for
--extract-recursive-link-directive. I fixed some sorting issues using
this, but even that was only a two line diff:

gnulib-tool.py --extract-recursive-link-directive unistdio/ulc-vasnprintf uname 
pthread sys_socket j0 exp jn fma pow trim > test-python 2>&1
gnulib-tool.sh --extract-recursive-link-directive unistdio/ulc-vasnprintf uname 
pthread sys_socket j0 exp jn fma pow trim > test-shell 2>&1
git diff --no-index test-python test-shell

Collin

0001-gnulib-tool.py-Follow-gnulib-tool-changes-part-57.patch
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