5b073da7a1
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 628ceac6526724d35cb390cc1f88344f4ea22eb4 which was reverted due to out-of-tree build failure.
FFmpeg README ------------- 1) Documentation ---------------- * Read the documentation in the doc/ directory in git. You can also view it online at http://ffmpeg.org/documentation.html 2) Licensing ------------ * See the LICENSE file. 3) Build and Install -------------------- * See the INSTALL file.