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koreader-from-src: notes about updating leptonica

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Colin 2024-03-22 15:53:17 +00:00
parent 22254db74c
commit 3b6dfea2d0
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pkgs/additional/koreader-from-src/sources.nix
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@ -129,7 +129,14 @@ in
source.url = "https://github.com/DanBloomberg/leptonica.git";
source.rev = "1.74.1";
source.hash = "sha256-SDXKam768xvZZvTbXe3sssvZyeLEEiY97Vrzx8hoc6g=";
# package = leptonica; # k2pdf needs leptonica src. # cp -f /build/koreader/base/thirdparty/libk2pdfopt/build/aarch64-unknown-linux-gnu/libk2pdfopt-prefix/src/libk2pdfopt/leptonica_mod/dewarp2.c
# k2pdf needs leptonica src, because it actually patches it and builds it itself
# `cp -f $(LEPTONICA_MOD)/dewarp2.c $(LEPTONICA_DIR)/src/dewarp2.c`
# i.e. cp -f /build/koreader/base/thirdparty/libk2pdfopt/build/aarch64-unknown-linux-gnu/libk2pdfopt-prefix/src/libk2pdfopt/leptonica_mod/dewarp2.c ...
# k2pdf uses an old leptonica -- like 2015-2017-ish.
# seems it can be at least partially updated, by replacing `numaGetMedianVariation` with `numaGetMedianDevFromMedian` (drop-in replacement)
# and replacing references to `liblept.so` with `libleptonica.so`,
# but eventually this requires patching the tesseract Makefiles. could get intense, idk.
# package = leptonica;
};
# libjpeg-turbo = {
# source.url = "https://github.com/libjpeg-turbo/libjpeg-turbo.git";