Add strtonum to OpenBSD
diff --git a/src/unix/bsd/netbsdlike/openbsdlike/openbsd/mod.rs b/src/unix/bsd/netbsdlike/openbsdlike/openbsd/mod.rs
index 0761a18..c4a6080 100644
--- a/src/unix/bsd/netbsdlike/openbsdlike/openbsd/mod.rs
+++ b/src/unix/bsd/netbsdlike/openbsdlike/openbsd/mod.rs
@@ -52,6 +52,9 @@
envp: *const *const ::c_char) -> ::c_int;
pub fn pledge(promises: *const ::c_char,
execpromises: *const ::c_char) -> ::c_int;
+ pub fn strtonum(nptr: *const ::c_char, minval: ::c_longlong,
+ maxval: ::c_longlong,
+ errstr: *mut *const ::c_char) -> ::c_longlong;
}
cfg_if! {