feat(ffi): install global panic handler (#108)

deltachat-ffi/Cargo.toml

@@ -17,6 +17,7 @@ crate-type = ["cdylib", "staticlib"]
 [dependencies]
 deltachat = { path = "../" }
 libc = "0.2"
+human-panic = "1.0.1"
 
 [features]
-default = ["deltachat/vendored"]
+default = ["deltachat/vendored"]

deltachat-ffi/src/lib.rs

@@ -7,8 +7,8 @@
     non_snake_case
 )]
 
-extern crate deltachat;
-extern crate libc;
+#[macro_use]
+extern crate human_panic;
 
 use deltachat::*;
 
@@ -28,6 +28,8 @@ pub unsafe extern "C" fn dc_context_new(
     userdata: *mut libc::c_void,
     os_name: *const libc::c_char,
 ) -> *mut dc_context_t {
+    setup_panic!();
+
     let ctx = context::dc_context_new(cb, userdata, os_name);
     Box::into_raw(Box::new(ctx))
 }