assembler-build.gradle

main = asm.Executable

main { //could also not name the exec and use asm.Executable { ....?
  x86.architecture = "i386" //x86 is a platform
  
  binaries.all {
    if (toolChain in VisualCop) {
      source sources.i386_masm.asm
      assembler.args "/Zi"
    } else {
      source sources.i386_gcc.asm
    }
  }
}

sources {
    i386_masm {
        asm(AssemblerSourceSet) {
            source.srcDir "src/main/asm_i386_masm"
        }
    }
    i386_gcc {
        asm(AssemblerSourceSet) {
            source.srcDir "src/main/asm_i386_gcc"
        }
    }
}

c-build.gradle

hello = c.Library

main = c.Executable

main.c.sources.lib  = libraries.hello

binaries.all {
    // Define toolchain-specific compiler and linker options
    if (toolChain in Gcc) {
        cCompiler.args "-O2"
        linker.args "-Xlinker", "-S"
    }
    if (toolChain in VisualCpp) {
        cCompiler.args "/Zi"
        linker.args "/DEBUG"
    }
}

// For any shared library binaries built with Visual C++,
// define the DLL_EXPORT macro
binaries.withType(SharedLibraryBinarySpec) {
    if (toolChain in VisualCpp) {
        cCompiler.args "/Zi"
        cCompiler.define "DLL_EXPORT"
    }
}

java-build.gradle

myLib = java.Library //myArtifact = java.Library and java.Application

myLib.java.sourceCompatibility = "1.6" //java is the platform

sources {
  java
}

myLib.sources = sources.java ++ sources.resources //overrides with what is the default