Stefano Sabatini 5b073da7a1 doc: add script to compute texi files dependencies ...

Replace the inline awk script with a Perl script which tracks the
dependencies recursively.

This allows to correctly track dependencies for files including files
with a second level include (for example: ffmpeg-devices.texi ->
devices.texi -> outdevs.texi).

This also adds a dependency on perl for computing the dependencies, which
should not be a problem since perl is already required all the way for
building documentation.

This is a variant of commit 628ceac652
which was reverted due to out-of-tree build failure.

2013-12-06 10:40:38 +01:00

865 B

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