Makefile: better deps; fop(1), hru(1), strerror(3): changed strerror wrapper function name

Makefile

@@ -58,7 +58,7 @@ build/o/libstrerror.rlib: build src/strerror.rs
 	$(RUSTC) $(RUSTFLAGS) --crate-type=lib -o $@ \
 		src/strerror.rs
 
-build/o/libsysexits.rlib: build
+build/o/libsysexits.rlib: build include/sysexits.h
 	# bandage solution until bindgen(1) gets stdin support
 	printf '#define EXIT_FAILURE 1\n' | cat - include/sysexits.h \
 		> build/include/sysexits.h 

src/fop.rs

@@ -27,7 +27,7 @@ extern crate strerror;
 extern crate sysexits;
 
 use getopt::{ Opt, Parser };
-use strerror::c_error;
+use strerror::raw_message;
 use sysexits::{ EX_DATAERR, EX_IOERR, EX_UNAVAILABLE, EX_USAGE };
 
 fn main() {
@@ -77,7 +77,7 @@ fn main() {
 		.stdout(Stdio::piped())
 		.spawn()
 		.unwrap_or_else( |e| {
-			eprintln!("{}: {}: {}", argv[0], argv[command_arg], c_error(e));
+			eprintln!("{}: {}: {}", argv[0], argv[command_arg], raw_message(e));
 			exit(EX_UNAVAILABLE);
 		});
 
@@ -96,7 +96,7 @@ fn main() {
 	}
 
 	let output = spawned.wait_with_output().unwrap_or_else(|e| {
-		eprintln!("{}: {}: {}", argv[0], argv[command_arg], c_error(e));
+		eprintln!("{}: {}: {}", argv[0], argv[command_arg], raw_message(e));
 		exit(EX_IOERR);
 	});
 
@@ -114,7 +114,7 @@ fn main() {
 	stdout().write_all(
 		fields.join(&d.to_string()).as_bytes()
 	).unwrap_or_else(|e| {
-		eprintln!("{}: {}", argv[0], c_error(e));
+		eprintln!("{}: {}", argv[0], raw_message(e));
 		exit(EX_IOERR);
 	});
 }

src/hru.rs

@@ -26,7 +26,7 @@ use std::{
 extern crate strerror;
 extern crate sysexits;
 
-use strerror::c_error;
+use strerror::raw_message;
 use sysexits::{ EX_DATAERR, EX_IOERR, EX_SOFTWARE };
 
 const LIST: [(u32, &str); 10] = [
@@ -100,7 +100,7 @@ fn main() -> ExitCode {
 
 		stdout().write_all(format!("{} {}\n", out, si_prefix).as_bytes())
 			.unwrap_or_else(|e| {
-				eprintln!("{}: {}", argv[0], c_error(e));
+				eprintln!("{}: {}", argv[0], raw_message(e));
 				exit(EX_IOERR);
 			});
 	}

src/strerror.rs

@@ -13,7 +13,7 @@ use std::ffi::{ c_int, c_char, CStr };
 extern "C" { fn strerror(errnum: c_int) -> *mut c_char; }
 
 /* wrapper function for use in Rust */
-pub fn c_error(err: std::io::Error) -> String {
+pub fn raw_message(err: std::io::Error) -> String {
 	/* Get the raw OS error. If it’s None, what the hell is going on‽ */
 	let error = err.raw_os_error().unwrap_or_else(|| { panic!() }) as c_int;