no NDK aarch64-linux-android-gcc on $PATH at (eval 10) line 142.

[anatoliy-lobanov]

System:

• OS: macOS Ventura 13.6 (22G120)
• strongSwan version(s): 5.9.13
• Tested/confirmed with the latest version: yes

Describe the bug
When I launch build.sh script from strongswan/src/frontends/android/openssl/build.sh, I received the following error:
no NDK aarch64-linux-android-gcc on $PATH at (eval 10) line 142.

The full log of error:
Building OpenSSL's libcrypto for arm64-v8a
make: *** No rule to make target 'distclean'. Stop.
***** Deprecated options: no-hw
Configuring OpenSSL version 3.0.12 for target android-arm64
Using os-specific seed configuration

Failure! build file wasn't produced.
Please read INSTALL.md and associated NOTES-* files. You may also have to
look over your available compiler tool chain or change your configuration.

no NDK aarch64-linux-android-gcc on $PATH at (eval 10) line 142.

To Reproduce
Steps to reproduce the behavior:

1. Open the Android project from path = strongswan/src/frontends/android
2. Wait for the Gradle sync and so on
3. Launch the script strongswan/src/frontends/android/openssl/build.sh

Expected behavior
After strongswan/src/frontends/android/openssl/build.sh script is executed, it should generate openssl for android, and put it to the folder strongswan/src/frontends/android/app/src/main/jni

Logs/Backtraces
➜ openssl git:(master) ✗ ./build.sh
[+] Building 2.3s (10/10) FINISHED docker:desktop-linux
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 685B 0.0s
=> [internal] load metadata for docker.io/library/debian:bullseye 2.2s
=> [1/5] FROM docker.io/library/debian:bullseye@sha256:ab2b95aa8d7d6d54866b92c322cf0693933c1ae8038652f24ddfda1d1763a45a 0.0s
=> [internal] load build context 0.0s
=> => transferring context: 69B 0.0s
=> CACHED [2/5] RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -qq -y --no-install-recommends jq make perl && rm -rf 0.0s
=> CACHED [3/5] COPY compile.sh / 0.0s
=> CACHED [4/5] RUN chmod +x /compile.sh 0.0s
=> CACHED [5/5] WORKDIR /src 0.0s
=> exporting to image 0.0s
=> => exporting layers 0.0s
=> => writing image sha256:7fa378105961cde70edacc2f66e938c5cbe67c6cbe81251e6c369a710cc53264 0.0s
=> => naming to docker.io/library/strongswan-android-openssl-builder 0.0s

What's Next?
View a summary of image vulnerabilities and recommendations → docker scout quickview
Building OpenSSL's libcrypto for arm64-v8a
make: *** No rule to make target 'distclean'. Stop.
***** Deprecated options: no-hw
Configuring OpenSSL version 3.0.12 for target android-arm64
Using os-specific seed configuration

Failure! build file wasn't produced.
Please read INSTALL.md and associated NOTES-* files. You may also have to
look over your available compiler tool chain or change your configuration.

no NDK aarch64-linux-android-gcc on $PATH at (eval 10) line 142.

Additional context
Also, except this problem, when I make in the root of the project following commands:

1. strongswan/autogen.sh -> OK
2. strongswan/configure -> OK
3. make -> NOT OK, and receiving following errors:
   ➜ strongswan git:(master) ✗ make
   /Library/Developer/CommandLineTools/usr/bin/make all-recursive
   Making all in src
   Making all in .
   make[3]: Nothing to be done for all-am'. Making all in include make[3]: Nothing to be done for all'.
   Making all in libstrongswan
   /bin/sh ../../ylwrap settings/settings_parser.y y.tab.c settings/settings_parser.c y.tab.h echo settings/settings_parser.c | sed -e s/cc$/hh/ -e s/cpp$/hpp/ -e s/cxx$/hxx/ -e s/c++$/h++/ -e s/c$/h/ y.output settings/settings_parser.output -- bison -y -v -d
   /Users/xxxx/Documents/Repositories/strongswan/src/libstrongswan/settings/settings_parser.y:68.9-19: syntax error, unexpected identifier, expecting string
   make[3]: *** [settings/settings_parser.c] Error 1
   make[2]: *** [all-recursive] Error 1
   make[1]: *** [all-recursive] Error 1
   make: *** [all] Error 2

[tobiasbrunner]

Please follow the build instructions for Android in the docs.

[anatoliy-lobanov]

Please follow the build instructions for Android in the docs.

@tobiasbrunner , thank you a lot for the guide. I have followed by it, and still receiving the same issue. Steps are below:

1. In the root of the project = ./autogen.sh => SUCCESS
2. In the root of the project = ./configure => SUCCESS
3. In the root of the project = make dist => SUCCESS
4. export ANDROID_NDK_ROOT=/Users/xxx/Library/Android/sdk/ndk/22.1.7171670 => SUCCESS
5. export OPENSSL_SRC=/Users/xxx/Documents/openssl/openssl-1.1.1w => SUCCESS
6. Then = src/frontends/android/openssl/build.sh => FAILED with message below:
   ~/Documents/openssl/openssl-1.1.1w ~/Documents/Repositories/strongswan
   Building OpenSSL's libcrypto for arm64-v8a
   make: *** No rule to make target `distclean'. Stop.
   Configuring OpenSSL version 1.1.1w (0x1010117fL) for android-arm64
   Using os-specific seed configuration
   no NDK aarch64-linux-android-gcc on $PATH at (eval 10) line 142.

I do really need to build StrongSwan client for Android and launch it on real mobile device.
Please, help me to understand what I do wrong

P.S. I am using MacBook Pro 2019 (Intel Chip) with macOS Ventura 13.6 (22G120), using latest StrongSwan repository and master branch

[tobiasbrunner]

Your NDK might not work for this as the build script (which runs in a Linux Docker container, by default) expects that the prebuilt Linux toolchain exists ($ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/linux-x86_64). I guess the NDK you have is the one for macOS. So you'll either have to download the Linux-specific NDK and pass the path to that in ANDROID_NDK_ROOT, or change the path to the toolchain in compile.sh and export NO_DOCKER=1 so it builds on the host and not in a container (requires jq or specifying $ABIS manually, and also requires make and perl, so using Docker is usually easier).