build-linux.sh

#!/bin/bash
set -euo pipefail

CONFIG="${1?}"
TESSERACT_VERSION="${2?}"
LEPTONICA_VERSION="${3?}"
TESSERACT_DIR="${4-tesseract-$TESSERACT_VERSION}"
LEPTONICA_DIR="${5-leptonica-$LEPTONICA_VERSION}"

# configure leptonica
cmake $LEPTONICA_DIR -B "leptonica_build_$CONFIG" \
  -DCMAKE_INSTALL_PREFIX="release/leptonica/$CONFIG" \
  -DCMAKE_BUILD_TYPE="$CONFIG" \
  -DCMAKE_OSX_DEPLOYMENT_TARGET=11.0 \
  -DCMAKE_OSX_ARCHITECTURES="x86_64;arm64" \
  -DBUILD_SHARED_LIBS=OFF \
  -DENABLE_ZLIB=OFF \
  -DENABLE_PNG=OFF \
  -DENABLE_GIF=OFF \
  -DENABLE_JPEG=OFF \
  -DENABLE_TIFF=OFF \
  -DENABLE_WEBP=OFF \
  -DENABLE_OPENJPEG=OFF \
  -DCMAKE_POSITION_INDEPENDENT_CODE=ON

# build leptonica
cmake --build "leptonica_build_$CONFIG"
cmake --install "leptonica_build_$CONFIG" --prefix "release/leptonica/$CONFIG"

# configure tesseract
cmake $TESSERACT_DIR -B "tesseract_build_${CONFIG}" \
  -DCMAKE_INSTALL_PREFIX="release/tesseract/$CONFIG" \
  -DCMAKE_BUILD_TYPE="$CONFIG" \
  -DBUILD_SHARED_LIBS=OFF \
  -DLeptonica_DIR="$(pwd)/release/leptonica/$CONFIG/lib/cmake/leptonica" \
  -DUSE_SYSTEM_ICU=ON \
  -DBUILD_TRAINING_TOOLS=OFF \
  -DBUILD_TESTS=OFF \
  -DDISABLED_LEGACY_ENGINE=ON \
  -DDISABLE_TIFF=ON \
  -DDISABLE_CURL=ON \
  -DCMAKE_POSITION_INDEPENDENT_CODE=ON

# build
cmake --build "tesseract_build_${CONFIG}"
cmake --install "tesseract_build_${CONFIG}" --prefix "release/tesseract/$CONFIG"

# copy leptonica static libraries to tesseract
cp -r "release/leptonica/$CONFIG/lib" "release/tesseract/$CONFIG/"

tar -C "release/tesseract/$CONFIG" -cvf "release/tesseract-linux-$TESSERACT_VERSION-$CONFIG.tar.gz" .