build: allow enabling the musig module in cmake

Author: jonasnick

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}")

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()

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()