Rust FFI bindings to Leptonica.
Types and functions generated from the functions listed in allheaders.h.
Windows and Mac maintainers wanted.
This links to the C library Leptonica.
On Fedora 30 the build dependencies can be installed by running:
sudo dnf install leptonica-devel clang
On Termux 2019 (Android, Android on Chromebooks) the additional dependencies can be installed by running:
pkg install libclang leptonica-dev
On Windows, this library uses Microsoft's vcpkg to provide leptonica.
Please install vcpkg and set up user wide integration or vcpkg crate won't be able to find the library. By default vcpkg installs 32 bit libraries. If you need 64 bit libraries then set following environment variable
SET VCPKG_DEFAULT_TRIPLET=x64-windows
To install leptonica
REM from the vcpkg directory
.\vcpkg install leptonica
vcpkg allows building either dynamically or statically linked application
if you prefer dynamic linking
SET VCPKGRS_DYNAMIC=true
for statically linked libraries
SET RUSTFLAGS=-Ctarget-feature= crt-static
If you prefer to compile tesseract yourself (Because, for example, you could not get vcpkg to build using clang-cl.exe), you can set these environment variables: LEPTONICA_INCLUDE_PATH
, LEPTONICA_LINK_PATHS
and LEPTONICA_LINK_LIBS
.
For example:
set LEPTONICA_INCLUDE_PATH=D:\leptonica\build\include
set LEPTONICA_LINK_PATHS=D:\leptonica\build\lib
set LEPTONICA_LINK_LIBS=leptonica-1.83.0