From 179f35e0ba9c21d944e19dcc530bbb0f632c26e5 Mon Sep 17 00:00:00 2001
From: Jonas Nick <jonasd.nick@gmail.com>
Date: Tue, 11 Jun 2019 20:32:54 +0000
Subject: [PATCH] Move libsecp USE_ENDOMORPHISM option behind non-default
 feature flag

---
 .travis.yml | 4 ++--
 Cargo.toml  | 3 ++-
 build.rs    | 3 ++-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 2f9a119..5554a38 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,11 +24,11 @@ script:
   - cargo build --verbose --features=rand
   - cargo test --verbose --features=rand
   - cargo test --verbose --features="rand serde"
-  - cargo test --verbose --features="rand serde recovery"
+  - cargo test --verbose --features="rand serde recovery endomorphism"
   - cargo build --verbose --no-default-features
   - cargo build --verbose --no-default-features --features="serde"
   - cargo build --verbose --no-default-features --features="rand"
-  - cargo build --verbose --no-default-features --features="rand serde recovery"
+  - cargo build --verbose --no-default-features --features="rand serde recovery endomorphism"
   - cargo build --verbose --no-default-features --features="fuzztarget recovery"
   - cargo build --verbose
   - cargo test --verbose
diff --git a/Cargo.toml b/Cargo.toml
index 6325e31..5f2bc5b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -15,7 +15,7 @@ build = "build.rs"
 
 # Should make docs.rs show all functions, even those behind non-default features
 [package.metadata.docs.rs]
-features = [ "rand", "serde", "recovery" ]
+features = [ "rand", "serde", "recovery", "endomorphism" ]
 all-features = true
 
 [build-dependencies]
@@ -31,6 +31,7 @@ default = ["std"]
 fuzztarget = []
 std = []
 recovery = []
+endomorphism = []
 
 [dev-dependencies]
 rand = "0.6"
diff --git a/build.rs b/build.rs
index d104124..664af17 100644
--- a/build.rs
+++ b/build.rs
@@ -52,9 +52,10 @@ fn main() {
                .define("USE_NUM_NONE", Some("1"))
                .define("USE_FIELD_INV_BUILTIN", Some("1"))
                .define("USE_SCALAR_INV_BUILTIN", Some("1"))
-               .define("USE_ENDOMORPHISM", Some("1"))
                .define("ENABLE_MODULE_ECDH", Some("1"));
 
+    #[cfg(feature = "endomorphism")]
+    base_config.define("USE_ENDOMORPHISM", Some("1"));
     #[cfg(feature = "recovery")]
     base_config.define("ENABLE_MODULE_RECOVERY", Some("1"));