iOS Examples fail at FastCDR Building

[caelinsutch]

Output log of failure after running the ament.py build command:

Process package 'fastcdr' with context:
--------------------------------------------------------------------------------
 source_space => /Users/caelinsutch/ros2_ios_ws/src/eProsima/Fast-CDR
  build_space => /Users/caelinsutch/ros2_ios_ws/build/fastcdr
install_space => /Users/caelinsutch/ros2_ios_ws/install
   make_flags => -sdk, iphonesimulator, -j4, -l4
  build_tests => False
--------------------------------------------------------------------------------
+++ Building 'fastcdr'
==> '. /Users/caelinsutch/ros2_ios_ws/build/fastcdr/cmake__build.sh && /usr/local/bin/cmake -DBUILD_TESTING=0 -DTHIRDPARTY=ON -DINSTALL_EXAMPLES=OFF -DBUILD_SHARED_LIBS=OFF -DCMAKE_TOOLCHAIN_FILE=/Users/caelinsutch/ros2_ios_ws/src/ruslo/polly/ios-nocodesign.cmake -DCMAKE_XCODE_ATTRIBUTE_ONLY_ACTIVE_ARCH=NO -DCMAKE_INSTALL_PREFIX=/Users/caelinsutch/ros2_ios_ws/install -G Xcode /Users/caelinsutch/ros2_ios_ws/src/eProsima/Fast-CDR' in '/Users/caelinsutch/ros2_ios_ws/build/fastcdr'
-- [polly] Used toolchain: iOS 13.2 Universal (iphoneos + iphonesimulator) / clang / c++14 support
-- The C compiler identification is AppleClang 11.0.0.11000033
-- The CXX compiler identification is AppleClang 11.0.0.11000033
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang - broken
CMake Error at /usr/local/Cellar/cmake/3.17.3/share/cmake/Modules/CMakeTestCCompiler.cmake:60 (message):
  The C compiler

    "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /Users/caelinsutch/ros2_ios_ws/build/fastcdr/CMakeFiles/CMakeTmp
    
    Run Build Command(s):/usr/bin/xcodebuild -project CMAKE_TRY_COMPILE.xcodeproj build -target cmTC_35bae -configuration Debug -hideShellScriptEnvironment && User defaults from command line:
        HideShellScriptEnvironment = YES
    
    Build settings from configuration file '/Users/caelinsutch/ros2_ios_ws/src/ruslo/polly/scripts/NoCodeSign.xcconfig':
        CODE_SIGNING_REQUIRED = NO
    
    Prepare build
    note: Using legacy build system
    === BUILD TARGET cmTC_35bae OF PROJECT CMAKE_TRY_COMPILE WITH CONFIGURATION Debug ===
    
    Check dependencies
    Code Signing Error: Signing for "cmTC_35bae" requires a development team. Select a development team in the Signing & Capabilities editor.
    
    ** BUILD FAILED **
    
    
    The following build commands failed:
        Check dependencies
    (1 failure)
    
    

  

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:84 (project)


-- Configuring incomplete, errors occurred!
See also "/Users/caelinsutch/ros2_ios_ws/build/fastcdr/CMakeFiles/CMakeOutput.log".
See also "/Users/caelinsutch/ros2_ios_ws/build/fastcdr/CMakeFiles/CMakeError.log".

<== Command '. /Users/caelinsutch/ros2_ios_ws/build/fastcdr/cmake__build.sh && /usr/local/bin/cmake -DBUILD_TESTING=0 -DTHIRDPARTY=ON -DINSTALL_EXAMPLES=OFF -DBUILD_SHARED_LIBS=OFF -DCMAKE_TOOLCHAIN_FILE=/Users/caelinsutch/ros2_ios_ws/src/ruslo/polly/ios-nocodesign.cmake -DCMAKE_XCODE_ATTRIBUTE_ONLY_ACTIVE_ARCH=NO -DCMAKE_INSTALL_PREFIX=/Users/caelinsutch/ros2_ios_ws/install -G Xcode /Users/caelinsutch/ros2_ios_ws/src/eProsima/Fast-CDR' failed in '/Users/caelinsutch/ros2_ios_ws/build/fastcdr' with exit code '1'
<== Command '. /Users/caelinsutch/ros2_ios_ws/build/fastcdr/cmake__build.sh && /usr/local/bin/cmake -DBUILD_TESTING=0 -DTHIRDPARTY=ON -DINSTALL_EXAMPLES=OFF -DBUILD_SHARED_LIBS=OFF -DCMAKE_TOOLCHAIN_FILE=/Users/caelinsutch/ros2_ios_ws/src/ruslo/polly/ios-nocodesign.cmake -DCMAKE_XCODE_ATTRIBUTE_ONLY_ACTIVE_ARCH=NO -DCMAKE_INSTALL_PREFIX=/Users/caelinsutch/ros2_ios_ws/install -G Xcode /Users/caelinsutch/ros2_ios_ws/src/eProsima/Fast-CDR' failed in '/Users/caelinsutch/ros2_ios_ws/build/fastcdr' with exit code '1'

I'm guessing this is related to this polly issue but I'm not sure in which cmake file to set the variable for developer ID

[esteve]

@caelinsutch thanks for trying out ros2_objc. What version of XCode are you using? CI uses Xcode 10 IIRC, but it seems that later versions have issues with code signing and CMake:

https://gitlab.kitware.com/cmake/cmake/-/issues/20571

Could you try adding the following arguments to the ament.py command? That is:

src/ament/ament_tools/scripts/ament.py build \
  --use-xcode \
  --cmake-args \
  -DTHIRDPARTY=ON \
  -DINSTALL_EXAMPLES=OFF \
  -DBUILD_SHARED_LIBS=OFF \
  -DCMAKE_TOOLCHAIN_FILE=$HOME/ros2_ios_ws/src/ruslo/polly/ios-nocodesign.cmake \
  -DCMAKE_XCODE_ATTRIBUTE_ONLY_ACTIVE_ARCH=NO \
  -DCMAKE_XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED=NO \
  -DCODE_SIGNING_ALLOWED=NO \
  -- \
  --make-flags -sdk iphoneos

Thanks!

[caelinsutch]

Are there signing variables we need to export? I remember reading somewhere about the need for developer ID's to build this stuff now.