buildscript {
    def runningInIde = project.hasProperty('android.injected.invoked.from.ide')
    rootProject.ext.runningInIde = runningInIde
    if (runningInIde) {
        apply from: "../ideCommonBuildScript.gradle"
    } else {
        apply from: "../commonHeader.gradle"
        apply from: "../commonBuildScript.gradle"
    }
}
if (!rootProject.ext.runningInIde) {
    apply from: "../commonHeader.gradle"
}

gradle.projectsEvaluated {
    tasks.withType(JavaCompile) {
        options.compilerArgs << "-Xmaxerrs" << "500" // or whatever number you want
    }
}