Speeding up builds

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Hello! I'm new to SWIG, but am looking to integrate it into a project of
mine.

It mostly seems to work flawlessly so far, but on a very large file (a 140k
line header file), SWIG takes a very long time to generate the python
wrapper (22 minutes on my system) [1]. This header file is mostly struct
and enum declarations.

Is there any way to speed up the build, or make it multithreaded? Running
`htop` while its building shows that it's only using a single core. I've
tried some of the CLI flags like `-no<blah>`, but they didn't seem to
provide much of a speed up. I imagine breaking the file up some would help,
but I don't control the file and would prefer to avoid manually splitting
it.

[1]: The specific command I'm using is `swig -python -doxygen -module thing
thing.h`. I'd like the doxygen output, but even without the flag, it's
still quite slow.

Thanks,
Davis

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<div dir=3D"auto"><div>Hello! I&#39;m new to SWIG, but am looking to integr=
ate it into a project of mine.=C2=A0</div><div dir=3D"auto"><br></div><div =
dir=3D"auto">It mostly seems to work flawlessly so far, but on a very large=
 file (a 140k line header file), SWIG takes a very long time to generate th=
e python wrapper (22 minutes on my system) [1]. This header file is mostly =
struct and enum declarations.=C2=A0</div><div dir=3D"auto"><br></div><div d=
ir=3D"auto">Is there any way to speed up the build, or make it multithreade=
d? Running `htop` while its building shows that it&#39;s only using a singl=
e core. I&#39;ve tried some of the CLI flags like `-no&lt;blah&gt;`, but th=
ey didn&#39;t seem to provide much of a speed up. I imagine breaking the fi=
le up some would help, but I don&#39;t control the file and would prefer to=
 avoid manually splitting it.=C2=A0</div><div dir=3D"auto"><br></div><div d=
ir=3D"auto">[1]: The specific command I&#39;m using is `swig -python -doxyg=
en -module thing thing.h`. I&#39;d like the doxygen output, but even withou=
t the flag, it&#39;s still quite slow.=C2=A0</div><div><br></div><div data-=
smartmail=3D"gmail_signature"><div dir=3D"ltr">Thanks,</div><div dir=3D"ltr=
">Davis=C2=A0</div></div></div>

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