How can i separate jni____.dll/so from jar file when gradle build?

[devjeonghwan]

@saudet

I'm building a multi gradle project.

root_project (not java project)
   - sub_project_1
     - plugin: org.bytedeco.gradle-javacpp-build
     - compile: org.bytedeco:javacpp

   - sub_project_2
     - plugin: org.bytedeco.gradle-javacpp-build
     - compile: org.bytedeco:cuda-platform
     - implementation: sub_project_1
     - and append '-cuda' to javacppPlatform for nvcc build
     ext {
        javacppPlatform = javacppPlatform + '-cuda'
     }

When i execute gradle command "gradlew sub_project_1:jar" and "gradlew sub_project_1:javacppJar". generated two jar files.

1. sub_project_1.jar
2. sub_project_1-windows-x86_64.jar

sub_project_1.jar not include dll or so files. (only empty windows-x86_64 directories)
sub_project_1-windows-x86_64.jar include platform dll or so files. (jni___.dll/so files)

but, When i execute gradle command "gradlew sub_project_2:jar" and "gradlew sub_project_2:javacppJar", generated two jar files.

1. sub_project_2.jar
2. sub_project_2-windows-x86_64-cuda.jar

sub_project_2.jar include platform dll or so files.
sub_project_2-windows-x86_64-cuda.jar not include dll or so files. (only empty windows-x86_64 directories)

I want sub_project_2 to be built separately just like sub_project_1.

[saudet]

This is about Gradle JavaCPP? We can set the extension with the javacppPlatformExtension project property, which is missing from this list:
https://github.com/bytedeco/gradle-javacpp/blob/master/src/main/java/org/bytedeco/gradle/javacpp/BuildPlugin.java#L43

[devjeonghwan]

Yesh maybe about Gradle JavaCPP.

I did another test that new sub project without cuda platform prefix. it works as i think.

but i want to use nvcc compiler instead of cl.exe.

If I set the javacppPlatformExtension property you told me to cuda, it uses cl.exe.

ext {
    javacppPlatformExtension = 'cuda'
}

or

ext {
    javacppPlatformExtension = '-cuda'
}

How can I move jni___.dll/so from ____.jar to ____-windows-x86_64.jar while using nvcc compiler?

[devjeonghwan]

I have to do javacpp parse and build using 'nvcc' compiler for my gradle project build. (because i use cuda headers and call kernels)

If I modify 'gradle.build' as below for use nvcc

ext {
    javacppPlatform = javacppPlatform + '-cuda'
}

It works. but, problem is 'jni___.dll' files are included in the (____.jar) jar file.

I want separated 'jni___.dll' into '_____-windows-x86-64.jar' files.

If I remove javacppPlatform + '-cuda' code, DLLs moved to ____.jar. (but i have to use nvcc. so i can't remove javacppPlatform + '-cuda' code)

[saudet]

To change the compiler, we can set the properties, such as shown in this sample for Android:
https://github.com/bytedeco/gradle-javacpp/blob/master/samples/zlib/build.gradle#L35

[devjeonghwan]

Thanks