From fb60ae9177e9fec2345498863388a377154ca798 Mon Sep 17 00:00:00 2001
From: Jonas Nick <jonasd.nick@gmail.com>
Date: Sat, 6 Jan 2024 20:17:27 +0000
Subject: [PATCH] build: allow enabling the musig module in cmake

---
 CMakeLists.txt          | 6 ++++++
 examples/CMakeLists.txt | 4 ++++
 src/CMakeLists.txt      | 3 +++
 3 files changed, 13 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index cf0dc3ba93..9ce0abaf7e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -63,6 +63,11 @@ endif()
 
 option(SECP256K1_ENABLE_MODULE_EXTRAKEYS "Enable extrakeys module." ON)
 option(SECP256K1_ENABLE_MODULE_SCHNORRSIG "Enable schnorrsig module." ON)
+option(SECP256K1_ENABLE_MODULE_MUSIG "Enable musig module." ON)
+if(SECP256K1_ENABLE_MODULE_MUSIG)
+  set(SECP256K1_ENABLE_MODULE_SCHNORRSIG ON)
+  add_compile_definitions(ENABLE_MODULE_MUSIG=1)
+endif()
 if(SECP256K1_ENABLE_MODULE_SCHNORRSIG)
   set(SECP256K1_ENABLE_MODULE_EXTRAKEYS ON)
   add_compile_definitions(ENABLE_MODULE_SCHNORRSIG=1)
@@ -275,6 +280,7 @@ message("  ECDH ................................ ${SECP256K1_ENABLE_MODULE_ECDH}
 message("  ECDSA pubkey recovery ............... ${SECP256K1_ENABLE_MODULE_RECOVERY}")
 message("  extrakeys ........................... ${SECP256K1_ENABLE_MODULE_EXTRAKEYS}")
 message("  schnorrsig .......................... ${SECP256K1_ENABLE_MODULE_SCHNORRSIG}")
+message("  musig ............................... ${SECP256K1_ENABLE_MODULE_MUSIG}")
 message("  ElligatorSwift ...................... ${SECP256K1_ENABLE_MODULE_ELLSWIFT}")
 message("Parameters:")
 message("  ecmult window size .................. ${SECP256K1_ECMULT_WINDOW_SIZE}")
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
index 607bb67770..af6cb75973 100644
--- a/examples/CMakeLists.txt
+++ b/examples/CMakeLists.txt
@@ -28,3 +28,7 @@ endif()
 if(SECP256K1_ENABLE_MODULE_SCHNORRSIG)
   add_example(schnorr)
 endif()
+
+if(SECP256K1_ENABLE_MODULE_MUSIG)
+  add_example(musig)
+endif()
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 4cbaeb914d..cc042b6ec3 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -132,6 +132,9 @@ if(SECP256K1_INSTALL)
   if(SECP256K1_ENABLE_MODULE_SCHNORRSIG)
     list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_schnorrsig.h")
   endif()
+  if(SECP256K1_ENABLE_MODULE_MUSIG)
+    list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_musig.h")
+  endif()
   if(SECP256K1_ENABLE_MODULE_ELLSWIFT)
     list(APPEND ${PROJECT_NAME}_headers "${PROJECT_SOURCE_DIR}/include/secp256k1_ellswift.h")
   endif()