Allow builds without signing

Author: louwers

platform/ios/ios.cmake

@@ -120,5 +120,9 @@ add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/app")
 set(DEVELOPMENT_TEAM_ID "" CACHE STRING "Apple Development Team ID")
 
 if(NOT DEVELOPMENT_TEAM_ID)
-    message(WARNING "No Apple Developer Team ID set! Please set DEVELOPMENT_TEAM_ID (e.g., -DDEVELOPMENT_TEAM_ID=YOUR_TEAM_ID).")
+    message(STATUS "No Apple Developer Team ID set (-DDEVELOPMENT_TEAM_ID=YOUR_TEAM_ID). Configuring build without signing.")
+    set(CMAKE_OSX_SYSROOT iphonesimulator)
+    set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED "NO")
+    set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_REQUIRED "NO")
+    set(CMAKE_XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY "")
 endif()