[Octave-task-tracker] [task #14501] Review #include declarations in code base

[Rik]

Follow-up Comment #3, task #14501 (project octave):

Unfortunately, it wasn't very automated.

Steps:

1) make clean
2) make -j1
  2a) Use Ctrl+C to stop compilation after gnulib (first target in SUBDIRS)
has been built
3) Run make, but substitute include-what-you-use for the actual C++ compiler


make -k -j1 V=1 CXX="/usr/bin/iwyu -std=c++11 -Xiwyu --check_also='*.h'"
CPPFLAGS="-I/usr/lib/llvm-3.5/lib/clang/3.5.2/include" | &tee inc.log


4) Postprocess inc.log to extract the interesting bits.  I used this Perl
script.


#!/usr/bin/perl -w -n

$do_print = /should add these lines:/ .. /^---$/;

print $_ if ($do_print);


5) Further postprocess the include list to remove the repeated elements.  I
used this Perl script.


#!/usr/bin/perl -w -n

$in_config = /^\Qconfig.h should add these lines\E/ .. /^---$/;
$in_octconfig = /^\Qoctave-config.h should add these lines\E/ .. /^---$/;
$in_post = /^\Qoct-conf-post.h should add these lines\E/ .. /^---$/;

next if ($in_config || $in_octconfig || $in_post);

print $_;



As you can see, not that easy.



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