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Update config for FriBiDi dynamic linking #181

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merged 10 commits into from
Mar 31, 2021

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@nulano nulano commented Jan 2, 2021

For python-pillow/Pillow#5062.

See passing run in my branch: https://github.com/nulano/pillow-wheels/actions/runs/684862775

More comments inline below.

gz|tgz) tar -zxf $in_fname ;;
bz2) tar -jxf $in_fname ;;
zip) unzip -qq $in_fname ;;
xz) unxz -c $in_fname | tar -xf - ;;
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@nulano nulano Jan 2, 2021

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This line is wrong in the multibuild version causing an error in tar; https://github.com/matthew-brett/multibuild/pull/380.

config.sh Outdated
Comment on lines 88 to 91
if [ -z "$IS_OSX" ]; then
export FREETYPE_LIBS=-lfreetype
export FREETYPE_CFLAGS=-I/usr/local/include/freetype2/
fi
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HarfBuzz fails to find FreeType on linux without this, specify the path manually.

export FREETYPE_LIBS=-lfreetype
export FREETYPE_CFLAGS=-I/usr/local/include/freetype2/
fi
build_simple harfbuzz $HARFBUZZ_VERSION https://github.com/harfbuzz/harfbuzz/releases/download/$HARFBUZZ_VERSION tar.xz --with-freetype=yes --with-glib=no
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--with-glib=no to avoid pulling in unrelated libraries on macos.

fi
pip wheel $(pip_opts) \
--global-option build_ext --global-option --enable-raqm \
--global-option --vendor-raqm --global-option --vendor-fribidi \
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Overriding pip_wheel_cmd to add the needed global options, as defined in python-pillow/Pillow#5062.

config.sh Outdated
EXP_FEATURES="fribidi harfbuzz raqm transp_webp webp_anim webp_mux xcb"
else
# can't find FriBiDi
EXP_FEATURES="transp_webp webp_anim webp_mux xcb"
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macOS and PyPy on Ubuntu don't find FriBiDi preinstalled. Adding brew install fribidi only finds it on Python 3.6. I'm not sure why this is, but it should be irrelevant given the build_ext flags defined above.

function pip_wheel_cmd {
local abs_wheelhouse=$1
if [ -z "$IS_OSX" ]; then
CFLAGS="$CFLAGS --std=c99" # for Raqm
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I think it is better to compile with C99 than to merge in the (poorly tested) C89 patch from python-pillow/Pillow@b3cfe73, especially when this file is not compiled by default.

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python-pillow/Pillow#2753 (comment)

We can't currently distribute a binary of Pillow with support for raqm due to license incompatibility, because while libraqm is MIT licensed, it links to GPL libraries.

@wiredfool do you recall which libraries you were discussing here?

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nulano commented Jan 3, 2021

python-pillow/Pillow#2753 (comment)

We can't currently distribute a binary of Pillow with support for raqm due to license incompatibility, because while libraqm is MIT licensed, it links to GPL libraries.

@wiredfool do you recall which libraries you were discussing here?

FriBiDi is under LGPL 2.1 or later: https://github.com/fribidi/fribidi#license

HarfBuzz is under "Old MIT": https://github.com/harfbuzz/harfbuzz/blob/master/COPYING

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nulano commented Mar 25, 2021

I've rerun the build in my branch of the latest version of python-pillow/Pillow#5062 and updated the link in the top comment: https://github.com/nulano/pillow-wheels/actions/runs/684862775

Trying the 3.6 and 3.8 wheels in a fresh LinuxMint 19.1 (based on Ubuntu 18.04) VM, I get a crash after one iteration with the latest 8.1.2 wheels from PyPI, while these wheels work for at least 1000 iterations. I also had to install libraqm0 for the PyPI wheels while these worked out of the box.

from PIL import ImageFont
for i in range(1000):
    print(i)
    ImageFont.truetype("DejaVuSans", layout_engine=ImageFont.LAYOUT_RAQM).getsize("hello")

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wiredfool commented Mar 28, 2021

Getting failures now of

2021-03-28T13:49:28.8410816Z   error: option --enable-raqm not recognized

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nulano commented Mar 28, 2021

Getting failures now of

2021-03-28T13:49:28.8410816Z   error: option --enable-raqm not recognized

python-pillow/Pillow#5062 adds new options which are required to enable the new code. These fail on the 8.1.2 tag, but are fine on the master branch (see "latest" jobs).

config.sh Outdated Show resolved Hide resolved
Co-authored-by: Andrew Murray <[email protected]>
@wiredfool wiredfool merged commit 4d91cd8 into python-pillow:master Mar 31, 2021
@nulano nulano deleted the for-5062 branch September 7, 2022 23:17
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3 participants