disable luma detection on non linux platformv1.14.1no-luma-on-non-linux

To fix compilation

See #573

1 files changed, 6 insertions, 0 deletions

diff --git a/src/display/luma.rs b/src/display/luma.rs
index c9e9105..479e4c9 100644
--- a/src/display/luma.rs
+++ b/src/display/luma.rs
@@ -15,6 +15,7 @@ pub enum Luma {
 
 /// Return the light of the terminal background, which is a value
 /// between 0 (black) and 1 (white).
+#[cfg(target_os = "linux")]
 pub fn luma() -> &'static Result<f32, terminal_light::TlError> {
     static LUMA: Lazy<Result<f32, terminal_light::TlError>> = Lazy::new(|| {
         let luma = time!(Debug, terminal_light::luma());
@@ -24,6 +25,11 @@ pub fn luma() -> &'static Result<f32, terminal_light::TlError> {
     &*LUMA
 }
 
+#[cfg(not(target_os = "linux"))]
+pub fn luma() -> Result<&'static f32, &'static str> {
+    Err("not implemented on this OS")
+}
+
 impl Luma {
     pub fn read() -> Self {
         match luma() {