Describe the Bug
I'm trying to create a completely static binary including inkwell however inkwell forces to always dynamically link to libffi with this line in build.rs

if cfg!(not(target_os = "windows")) {
    println!("cargo:rustc-link-lib=dylib=ffi");
}

llvm-sys works around this issue by introducing an environment variable: LLVM_SYS_{}_FFI_WORKAROUND, if declare

Caro, obrigado pelo excelente trabalho e pela nova versão.
sgs.dataframe([20577,20669,20745,21117,20882], start='17/08/2019', end='18/08/2019')
Quando busco os indices no intervalo acima ele me retorna o seguinte:
20577 20669 20745 21117 20882 2019-06-01 203887.0 11921.0 20.84 1.99 84.53
Há alguma diferenciação na busca de dados mensais?