Tell docs.rs to use the --all-features flag when generating docs

Closes https://github.com/emilk/egui/issues/381

eframe/Cargo.toml

@@ -17,6 +17,9 @@ include = [
   "Cargo.toml",
 ]
 
+[package.metadata.docs.rs]
+all-features = true
+
 [lib]
 
 [dependencies]

egui_demo_lib/Cargo.toml

@@ -17,6 +17,9 @@ include = [
   "Cargo.toml",
 ]
 
+[package.metadata.docs.rs]
+all-features = true
+
 [lib]
 
 [dependencies]

egui_glium/Cargo.toml

@@ -18,6 +18,9 @@ include = [
   "src/shader/*.glsl",
 ]
 
+[package.metadata.docs.rs]
+all-features = true
+
 [dependencies]
 copypasta = "0.7"
 egui = { version = "0.12.0", path = "../egui", default-features = false, features = ["single_threaded"] }

egui_web/Cargo.toml

@@ -18,6 +18,9 @@ include = [
   "src/shader/*.glsl",
 ]
 
+[package.metadata.docs.rs]
+all-features = true
+
 [lib]
 crate-type = ["cdylib", "rlib"]
 

epi/Cargo.toml

@@ -17,6 +17,9 @@ include = [
   "Cargo.toml",
 ]
 
+[package.metadata.docs.rs]
+all-features = true
+
 [lib]
 
 [dependencies]