From aaedf9d730179082f6e9c6f15682390d3eb2dba2 Mon Sep 17 00:00:00 2001
From: Kamen Mladenov <kamen@syndamia.com>
Date: Wed, 26 Feb 2025 11:19:14 +0200
Subject: feat: Add zkvm cargo features

So you can make code modifications compile-time, based on the zkVM
---
 guests/README.md                 | 10 ++++++++--
 guests/fibonacci/Cargo.toml      |  6 ++++++
 guests/graph_coloring/Cargo.toml |  6 ++++++
 3 files changed, 20 insertions(+), 2 deletions(-)

(limited to 'guests')

diff --git a/guests/README.md b/guests/README.md
index 1bbb176..9afcc23 100644
--- a/guests/README.md
+++ b/guests/README.md
@@ -26,13 +26,19 @@ These are normal Rust programs, with certain specific patterns implemented for z
    guests_macro = { version = "0.1.0", path = "../../guests_macro" }
    ```
 
-   and add a `no_std` [feature](https://doc.rust-lang.org/cargo/reference/features.html) like this:
+   and add a `no_std` and zkVM [features](https://doc.rust-lang.org/cargo/reference/features.html) like this:
 
    ```toml
    no_std = []
+   jolt = []
+   nexus = []
+   risc0 = []
+   sp1 = []
+   zkm = []
+   zkwasm = []
    ```
 
-   It's ok if you don't conditionally include anything with the feature, however it **must** exist!
+   It's ok if you don't use those features in any way, however they **must** exist!
 
 4. **Update your program.**
 
diff --git a/guests/fibonacci/Cargo.toml b/guests/fibonacci/Cargo.toml
index 4fe043c..6ada0c6 100644
--- a/guests/fibonacci/Cargo.toml
+++ b/guests/fibonacci/Cargo.toml
@@ -8,3 +8,9 @@ guests_macro = { version = "0.1.0", path = "../../guests_macro" }
 
 [features]
 no_std = []
+jolt = []
+nexus = []
+risc0 = []
+sp1 = []
+zkm = []
+zkwasm = []
diff --git a/guests/graph_coloring/Cargo.toml b/guests/graph_coloring/Cargo.toml
index b097d33..14af0f8 100644
--- a/guests/graph_coloring/Cargo.toml
+++ b/guests/graph_coloring/Cargo.toml
@@ -8,3 +8,9 @@ guests_macro = { version = "0.1.0", path = "../../guests_macro" }
 
 [features]
 no_std = []
+jolt = []
+nexus = []
+risc0 = []
+sp1 = []
+zkm = []
+zkwasm = []
-- 
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