2 files changed, 36 insertions, 1 deletions
diff --git a/src/args.rs b/src/args.rs
index 6def229..9318202 100644
--- a/src/args.rs
+++ b/src/args.rs
@@ -190,6 +190,41 @@ impl Args {
             .map(AsRef::as_ref)
             .filter(|x: &&str| x.contains('='))
     }
+
+    pub fn makeflags(&self) -> String {
+        let mut result = String::new();
+        if self.environment_overrides {
+            result.push('e');
+        }
+        if self.ignore_errors {
+            result.push('i');
+        }
+        if self.keep_going {
+            result.push('k');
+        }
+        if self.dry_run {
+            result.push('n');
+        }
+        if self.print_everything {
+            result.push('p');
+        }
+        if self.question {
+            result.push('q');
+        }
+        if self.no_builtin_rules {
+            result.push('r');
+        }
+        if self.no_keep_going {
+            result.push('S');
+        }
+        if self.silent {
+            result.push('s');
+        }
+        if self.touch {
+            result.push('t');
+        }
+        result
+    }
 }
 
 #[cfg(test)]
diff --git a/src/main.rs b/src/main.rs
index e0deecc..f5d28b1 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -60,7 +60,7 @@ fn main() -> Result<()> {
         args.makefile = vec![default_makefile.into()];
     }
     // Read in the makefile(s) specified.
-    // TODO dump command-line args into MAKEFLAGS
+    env::set_var("MAKEFLAGS", args.makeflags());
     // TODO dump command-line macros into environment
     // TODO add SHELL macro
     let mut makefile = Makefile::new(&args);