I’m trying to export my JUCE app to Android, but am struggling with attaching pre-compiled shared libraries with ProJucer, three of them: mosquitto, openssl and crypto. The steps below are what I did first, it seemed to result in a running app, however at the next build try everything broke. Any advice on how to achieve a perfect ProJucer config is appreciated! I was able to build a running app by attaching all the libraries to the CMakeLists.txt file manually, however the best solution would be to use a ProJucer generated
Below is how the field in the ProJucer configuration were filled, at the end a part of the CMakeLists.txt file was modified by removing the square brackets around the library variable names.
Android: External Libraries to Link
mosquitto
ssl
crypto
Android:Debug and Release: Header Search Paths
../../../3rdparty/mosquitto/include
Android:Debug and Release: External Library Search Paths
../../../3rdparty/openssl-3.0.12/lib-android/${ANDROID_ABI}
../../../3rdparty/mosquitto/lib-android/${ANDROID_ABI}
Modifications to the CMakeLists.txt file:
original square brackets in the CMakeLists.txt
target_link_libraries( ${BINARY_NAME}
${log}
${android}
${glesv2}
${egl}
"cpufeatures"
"oboe"
[[mosquitto]]
[[ssl]]
[[crypto]]
)
and what they should be
target_link_libraries( ${BINARY_NAME}
${log}
${android}
${glesv2}
${egl}
"cpufeatures"
"oboe"
mosquitto
ssl
crypto
)
The result of this configuration is a app that builds, however when run on emulator or a real android device it crashes immediately with an error saying that libmosquitto.so was not found.
FATAL EXCEPTION: main
Process: com.genelec.nguiapp, PID: 11261
java.lang.UnsatisfiedLinkError: dlopen failed: library "libmosquitto.so" not found:
needed by /data/app/~~Zq1IYVmdVOCMKHVYcvwQxw==/com.genelec.nguiapp-aJnshUE5XhI4Fk72M8QTqA==/lib/x86_64/libjuce_jni.so in namespace clns-6
at java.lang.Runtime.loadLibrary0(Runtime.java:1082)
clearly the library is not accessible, perhaps not attached to the built and burned app… but why? What have I missed?