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Provide native lib for libsignal
signal-cli depends on the libsignal-client library. It is a rust library and needs to be compiled for a specific processor architecture and operating system that it will be used on.
signal-cli releases include the pre-compiled binaries for x86_64 Linux (with a recent enough version of glibc
, see #643), Windows and macOS. For other platforms the library needs to be compiled from source.
Builds for some additional platforms are available in
-
https://github.com/exquo/signal-libs-build/
-
Linux:
- amd64/x86_64 (variant 1 requires
glibc
v2.28 or newer, variant 2 requiresmusl libc
) - arm64/aarch64, armv7, i386 (these require
glibc
v2.29 or newer)
- amd64/x86_64 (variant 1 requires
- macOS: amd64/x86_64, arm64/aarch64 (these require Darwin v14 or newer)
- Windows: amd64/x86_64
-
Linux:
-
https://gitlab.com/packaging/libsignal-client/
-
Linux:
- amd64/x86_64 (requires
glibc
v2.17 or newer) - arm64/aarch64, armv7 (these require
glibc
v2.28 or newer)
- amd64/x86_64 (requires
-
Linux:
-
https://media.projektzentrisch.de/temp/signal-cli/
-
Linux: amd64/x86_64, arm64/aarch64, armv7, i686, loong64, mips64, mips64el, mips, mipsel, powerpc, ppc64, ppc64el, riscv64, s390x, sparc64
- all artefacts require
glibc
v2.29 (riscv64: v2.28; loong64: v2.36) or newer
- all artefacts require
-
Linux: amd64/x86_64, arm64/aarch64, armv7, i686, loong64, mips64, mips64el, mips, mipsel, powerpc, ppc64, ppc64el, riscv64, s390x, sparc64
-
https://media.projektzentrisch.de/temp/signal-cli/tests/
- Artefacts that require
musl
instead ofglibc
(only briefly tested in Alpine Linux containers):libsignal_jni_soNNNN_ubuntu2004_{amd64,i686,arm64,armv7,loong64,ppc64el,riscv64,s390x}-musl.gz
- Artefacts cross-built against header files and libraries of previous, still supported Ubuntu LTS releases:
-
libsignal_jni_soNNNN_ubuntu1804_{powerpc,ppc64,ppc64el,riscv64}.gz
(these requireglibc
v2.27 or newer) -
libsignal_jni_soNNNN_ubuntu1804_{amd64,i686,arm64,armv7,mips64,mips64el,mips,mipsel,s390x,sparc64}.gz
(these requireglibc
v2.25 or newer) -
libsignal_jni_soNNNN_ubuntu1604_{ppc64,ppc64el}.gz
(these requireglibc
v2.22 or newer) -
libsignal_jni_soNNNN_ubuntu1604_{amd64,i686,arm64,armv7,mips64,mips64el,mips,mipsel,powerpc,s390x,sparc64}.gz
(these requireglibc
v2.18 or newer)
-
- Artefacts cross-built against header files and libraries of the unsupported older Ubuntu release 13.10:
-
libsignal_jni_soNNNN_ubuntu1310_arm64.gz
(requiresglibc
v2.17 or newer) -
libsignal_jni_soNNNN_ubuntu1310_{amd64,armv7,i686}.gz
(these requireglibc
v2.16 or newer)
-
- Artefacts that require
- JDK
- gradle
- rust (Guide here)
- protocol buffer compiler ("apt install protobuf-compiler")
Clone libsignal-client with git
, or download the "Source code" file from the releases page (see below for choosing the version from the releases).
Every signal-cli release requires a specific version of libsignal-client. The version number is a part of a libsignal-client-<VERSION>.jar
filename in signal-cli's lib
directory. For instance, for signal-cli v0.10.5, the file is
signal-cli-0.10.5/lib/libsignal-client-0.15.0.jar
This is the file path if you have downloaded a signal-cli release. If you have built signal-cli from source, the path will be
signal-cli/build/install/signal-cli/lib/libsignal-client-0.15.0.jar
So the required libsignal-client version is 0.15.0
.
Once everything is setup, navigate to the root of the libsignal-client codebase:
$ cd java
$ # Prevent building the android library
$ sed -i "s/include ':android'//" settings.gradle
$ ./build_jni.sh desktop
Then the native lib can be found in the libsignal-client sub-directory: target/release/libsignal_jni.so
(the file extension will be .dylib
on MacOS and .dll
on Windows, instead of .so
).
Once you have your library file, it can be bundled in the root of the libsignal-client-*.jar
file (but only for one architecture at a time).
First, the currently bundled file needs to be removed:
zip -d signal-cli/lib/libsignal-client-*.jar libsignal_jni.so
For signal-cli to be able to use the newly compiled library file, it can either be bundled into the .jar
file with
zip signal-cli/lib/libsignal-client-*.jar libsignal_jni.so
or be placed on the Java library path (see below). Only if there is no bundled file will libsignal search the library path (java.library.path
) for the .dylib
/.so
/.dll
file.
Note: on Windows, bundling the compiled signal_jni.dll
file does not seem to work: see #517. (According a comment in that thread, bundling does work if the files are renamed).
You can run the following command to get the value of java.library.path
on your system:
java -XshowSettings:properties -version 2>&1 | grep java.library.path
Note that there may be multiple paths to choose from, they are separated with a colon.
If your java.library.path
doesn't have any usable paths or you wish to not use the system defaults, then you can override the paths by modifying the final line of build/install/signal-cli/bin/signal-cli
JAVA_LIBRARY_PATH="-Djava.library.path=/your/java/library/path"
exec "$JAVACMD" "$JAVA_LIBRARY_PATH" "$@"
Make sure to place your .dylib
/.so
/.dll
file in that folder. Be aware that this method isn't ideal since if you rebuild signal-cli, then the script may be regenerated and you'll need to set this again.