Add one musl targets (the arm ones don't build)

.gitlab-ci.yml

@@ -11,10 +11,14 @@ variables:
     matrix:
       - TARGET:
           - aarch64-unknown-linux-gnu
+          # - aarch64-unknown-linux-musl
           - arm-unknown-linux-gnueabi
           - arm-unknown-linux-gnueabihf
+          # - arm-unknown-linux-musleabihf
           - armv7-unknown-linux-gnueabihf
+          # - armv7-unknown-linux-musleabihf
           - x86_64-unknown-linux-gnu
+          - x86_64-unknown-linux-musl
   rules:
   - when: on_success
 
@@ -28,7 +32,7 @@ compile:
     - git clone https://github.com/signalapp/libsignal-client
     - cd libsignal-client && git checkout "$libsignal_version"
     - rustup target add "${TARGET}"
-    - RUSTFLAGS='-C link-arg=-s' cargo build -p libsignal-jni --target "${TARGET}" --release --verbose
+    - RUSTFLAGS="$(../rustflags.sh)" cargo build -p libsignal-jni --target "${TARGET}" --release --verbose
     - cp -v target/${TARGET}/release/libsignal_jni.so ../libsignal_jni-${TARGET}.so
   artifacts:
     paths:

prepare-env.sh

@@ -5,16 +5,16 @@ apt-get update
 
 PACKAGES="git"
 case "${TARGET}" in
-    aarch64-unknown-linux-gnu)
+    aarch64-unknown-linux-gnu|aarch64-unknown-linux-musl)
         apt-get install -y "${PACKAGES}" {cpp,g++,gcc}-aarch64-linux-gnu
     ;;
-    arm-unknown-linux-gnueabi)
+    arm-unknown-linux-gnueabi|arm-unknown-linux-musleabi)
         apt-get install -y "${PACKAGES}" {cpp,g++,gcc}-arm-linux-gnueabi
     ;;
-    arm-unknown-linux-gnueabihf)
+    arm-unknown-linux-gnueabihf|arm-unknown-linux-musleabihf)
         apt-get install -y "${PACKAGES}" {cpp,g++,gcc}-arm-linux-gnueabihf
     ;;
-    armv7-unknown-linux-gnueabihf)
+    armv7-unknown-linux-gnueabihf|armv7-unknown-linux-musleabihf)
         apt-get install -y "${PACKAGES}" {cpp,g++,gcc}-arm-linux-gnueabihf
     ;;
     *)

rustflags.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+flags="-C link-arg=-s"
+
+if [[ "${TARGET}" == *musl ]]; then 
+    flags="${flags} -C target-feature=-crt-static"
+fi
+
+echo "${flags}"