termux-packages/packages/tesseract/build.sh

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TERMUX_PKG_HOMEPAGE=https://github.com/tesseract-ocr/tesseract
TERMUX_PKG_DESCRIPTION="Tesseract is probably the most accurate open source OCR engine available"
TERMUX_PKG_VERSION=3.05.00
TERMUX_PKG_DEPENDS="libtool, libuuid, leptonica"
TERMUX_PKG_SRCURL=https://github.com/tesseract-ocr/tesseract/archive/${TERMUX_PKG_VERSION}.tar.gz
TERMUX_PKG_SHA256=3fe83e06d0f73b39f6e92ed9fc7ccba3ef734877b76aa5ddaaa778fac095d996
TERMUX_PKG_FOLDERNAME=tesseract-${TERMUX_PKG_VERSION}
termux_step_pre_configure() {
# http://blog.matt-swain.com/post/26419042500/installing-tesseract-ocr-on-mac-os-x-lion
export LIBLEPT_HEADERSDIR=${TERMUX_PREFIX}/include/leptonica
perl -p -i -e 's|ADD_RT], true|ADD_RT], false|g' configure.ac
./autogen.sh
}
termux_step_post_make_install() {
# download english trained data
cd "${TERMUX_PREFIX}/share/tessdata"
rm -f eng.*
for f in cube.{bigrams,fold,lm,nn,params,size,word-freq} tesseract_cube.nn traineddata; do
f=eng.$f
# From the tessdata README: "These language data files only work with
# Tesseract 4. They are based on the sources in tesseract-ocr/langdata on GitHub.
# Get language data files for Tesseract 3.04 or 3.05 from the 3.04 tree."
termux_download \
https://raw.githubusercontent.com/tesseract-ocr/tessdata/3.04.00/$f \
$f
done
}