Unfortunately, I believe these are bugs with the toolchain and not Cap'n Proto.
This commit explains why "target_compile_features" is used: https://github.com/capnproto/capnproto/commit/1d0d1c3bf56af2935cb229a882ea5c604b1a5f4a It may be possible to replace target_compile_features with another test as a workaround, but the real fix is for the toolchain to support compiler feature detection. Philip On 27 November 2017 at 09:43, Yacine Alami <[email protected]> wrote: > Hi Philip, > > Thanks for the answer, I will try the hacky way on commenting out the > "target_compile_feature", though I'm afraid it might 'corrupt' the generated > library, not sure yet. > I'll try the xcode solution too. > > Do you know if there is any plan to officially support iOS soon, or will we > be hacking the compilation all the time ? > > Thanks! > > > Le jeudi 23 novembre 2017 12:24:43 UTC-8, Philip Quinn a écrit : >> >> Hi Yacine, >> >> There are a couple of iOS toolchains for CMake (I've used >> https://github.com/leetal/ios-cmake in the past), but none of them >> work particularly well with CMake projects that want to check compiler >> features – they either select the wrong compiler, or build the feature >> test for the wrong platform. >> >> In this case, you can remove the offending "target_compile_features" >> line to hack around the toolchain issue. I've also had similarly-hacky >> success with generating an Xcode project for macOS and using Xcode to >> change the toolchain. >> >> Philip >> >> >> >> On 21 November 2017 at 10:56, Yacine Alami <[email protected]> wrote: >> > Hi guys, >> > >> > I'm currently working on an iOS app that would require the integration >> > of >> > capnp. >> > I'm used to use CMake to cross compile c++ libraries for iOS using an >> > iOS >> > toolchain. >> > However, for Capnp I'm stuck on some errors and not even able to >> > generate >> > the Xcode project to compile it using the command line. >> > >> > I'm trying to cross compile capnp as a static lib that I can link and >> > call >> > into my iOS app using an Obj-c++ wrapper to be able to call it from >> > SWIFT. >> > >> > I use this toolchain (https://github.com/cristeab/ios-cmake) and CMake >> > 9.3, >> > I'm on high Sierra 10.13.1 and the lastest Xcode 9.1. >> > I'm targeting iOS 10.3 not 11 yet. >> > >> > Anyone ever managed to compile it on iOS ? Any help would be greatly >> > appreciated! >> > >> > To give more insight of my problems those are the errors that I get : >> > >> > CMake Error at c++/src/kj/CMakeLists.txt:63 (target_compile_features): >> > target_compile_features no known features for CXX compiler >> > >> > "Clang" >> > >> > version 9.0.0.9000038. >> > >> > CMake Error at c++/src/capnp/CMakeLists.txt:182 (install): >> > install TARGETS given no BUNDLE DESTINATION for MACOSX_BUNDLE executable >> > target "capnp_tool". >> > >> > >> > I did include the right c++11 flags for iOS (-stdlib=libc++) and add >> > some >> > Apple specific Cmake instruction. >> > >> > I use AppleClang 9.0.0.9000038 to compile it. >> > >> > >> > Thanks a lot for your time guys! >> > >> > >> > Yacine >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "Cap'n Proto" group. >> > To unsubscribe from this group and stop receiving emails from it, send >> > an >> > email to [email protected]. >> > Visit this group at https://groups.google.com/group/capnproto. > > -- > You received this message because you are subscribed to the Google Groups > "Cap'n Proto" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > Visit this group at https://groups.google.com/group/capnproto. -- You received this message because you are subscribed to the Google Groups "Cap'n Proto" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. Visit this group at https://groups.google.com/group/capnproto.
