use lazy_static instead of raw global

This crate would have been handy back in the days.

2 files changed, 12 insertions, 8 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 901e875..4108d5d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,3 +22,4 @@ doc         = false
 [dependencies]
 libc        = "0.2"
 getopts     = "0.2"
+lazy_static = "1.4"
diff --git a/src/vtcol.rs b/src/vtcol.rs
index a82e5bb..993653b 100644
--- a/src/vtcol.rs
+++ b/src/vtcol.rs
@@ -1,15 +1,16 @@
-extern crate libc;
-extern crate getopts;
-extern crate core;
+use std::sync::Mutex;
+use lazy_static::lazy_static;
 
 type Fd = libc::c_int;
 
-static mut VERBOSITY : u8 = 0_u8;
+lazy_static! {
+    static ref VERBOSITY: Mutex<bool> = false;
+}
 
 macro_rules! vrb {
-    ( $( $e:expr ),* ) => (
-            if unsafe { VERBOSITY } > 0_u8 { println!( $( $e ),* ) }
-        )
+    ( $( $e:expr ),* ) => {(
+            if VERBOSITY.lock().unwrap() { println!( $( $e ),* ) }
+    )}
 }
 
 const PALETTE_SIZE  : usize = 16_usize;
@@ -159,7 +160,9 @@ impl<'a> Job {
             unsafe { exit(0) };
         };
 
-        if matches.opt_present("v") { unsafe { VERBOSITY = 1_u8; } };
+        if matches.opt_present("v") {
+            VERBOSITY.lock().unwrap() = true;
+        }
 
         if matches.opt_present("l") {
             Job::schemes();