Gradle build file uses pre-built binaries by specifying nonexistent cpp source directory

build.gradle

@@ -0,0 +1,143 @@
+apply plugin: 'java'
+apply plugin: 'cpp'
+apply plugin: 'maven'
+
+repositories {
+	maven {
+		url 'https://github.com/Boukefalos/jlibloader/raw/mvn-repo/'
+	}
+	mavenCentral()
+}
+
+dependencies {
+	compile 'com.github.boukefalos:jlibloader:0.1'
+	testCompile 'junit:junit:3.8.1'
+}
+
+group = 'com.github.boukefalos'
+project.archivesBaseName = 'jlibcom'
+version = '1.18'
+
+task wrapper(type: Wrapper) {
+	gradleVersion = '1.12'
+}
+
+model {
+	platforms {
+		windows_i386 {
+			architecture 'i386'
+			operatingSystem 'windows'
+		}
+		windows_amd64 {
+			architecture 'amd64'
+			operatingSystem 'windows'
+		}
+	}
+}
+
+def jniHeadersDir = file("$buildDir/headers")
+
+task jniHeaders(dependsOn: compileJava) {
+	def outputFile = file("$jniHeadersDir/STA.h")
+	inputs.files sourceSets.main.output
+	outputs.file outputFile
+	exec {
+		executable org.gradle.internal.jvm.Jvm.current().getExecutable('javah')
+		args '-o', outputFile
+		args '-classpath', sourceSets.main.output.classesDir
+		args '-classpath', file("$buildDir/../bin")
+		args 'com.jacob.com.STA'
+	}
+}
+
+sources {
+	main {
+		cpp {
+			source {
+				srcDir 'src/none'
+			}
+		}
+	}
+}
+
+libraries {
+	main {
+		baseName project.archivesBaseName
+	}
+	all {
+		binaries.all {
+			cppCompiler.args '-I' + jniHeadersDir
+			cppCompiler.args "-I${org.gradle.internal.jvm.Jvm.current().javaHome}/include"
+			cppCompiler.args "-I${org.gradle.internal.jvm.Jvm.current().javaHome}/include/win32"
+			linker.args '-Wl,--kill-at', '-static-libgcc', '-static-libstdc++'
+			tasks.withType(CppCompile) { task ->
+				task.dependsOn jniHeaders
+			}
+		}
+	}
+}
+
+tasks.withType(Upload) {
+	repositories {
+		mavenDeployer {
+			repository(url: uri('.maven'))
+		}
+	}
+}
+
+configurations {
+	jni
+}
+
+def deployer = uploadJni.repositories.mavenDeployer
+
+binaries.withType(SharedLibraryBinary) { binary ->
+	if (!buildable) {
+		return
+	}
+	def variantName = "${targetPlatform.operatingSystem.name}-${targetPlatform.architecture.name}"
+	def taskName = "jar-${variantName}"
+	def nativeJar = project.tasks.findByName(taskName)
+	if (nativeJar == null) {
+		nativeJar = project.task(taskName, type: Jar) {
+			baseName = "${project.archivesBaseName}-$variantName"
+		}
+		artifacts {
+			jni nativeJar
+		}
+		def jniPom = deployer.addFilter(variantName) { artifact, file ->
+			return file == nativeJar.archivePath
+		}
+		jniPom.groupId = project.group
+		jniPom.artifactId = nativeJar.baseName
+		jniPom.version = project.version
+		jniPom.scopeMappings.mappings.clear()
+	}
+	def builderTask = binary.tasks.builder
+	nativeJar.into(project.group.replace('.', '/') + '/' + variantName) { from builderTask.outputFile }
+	nativeJar.dependsOn builderTask
+}
+
+def mainPom = uploadArchives.repositories.mavenDeployer.pom
+mainPom.groupId = project.group
+mainPom.artifactId = jar.baseName
+mainPom.version = project.version
+mainPom.scopeMappings.mappings.clear()
+mainPom.withXml { provider ->
+	def node = provider.asNode()
+	def deps = node.appendNode('dependencies')
+	['windows-amd64', 'windows-i386'].each { platform ->
+		def dep = deps.appendNode('dependency')
+		dep.appendNode('groupId', project.group)
+		dep.appendNode('artifactId', "${project.archivesBaseName}-${platform}")
+		dep.appendNode('version', project.version)
+	}
+	def dep = deps.appendNode('dependency')
+	dep.appendNode('groupId', 'com.github.boukefalos')
+	dep.appendNode('artifactId', 'jlibloader')
+	dep.appendNode('version', '0.1')
+}
+
+jar {
+	from sourceSets.main.allSource
+}