macOS: Xcode 9.3 build warnings #12867

1. 
   fanquake commented at 4:10 AM on April 3, 2018: member

   Building master (c564424d98b1561f16e633528172b3583719e5f3), these warnings are new as of macOS 10.13.4 and Xcode 9.3:

     OBJCXX   qt/bitcoin_qt-macdockiconhandler.o
   clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
   clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
     OBJCXX   qt/bitcoin_qt-macnotificationhandler.o
   ...
     CXXLD    bitcoind
   clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
     CXXLD    test/test_bitcoin
     CXXLD    bench/bench_bitcoin
   clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
   clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
   clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
     AR       qt/libbitcoinqt.a
     OBJCXXLD qt/bitcoin-qt
     CXXLD    qt/test/test_bitcoin-qt
   clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
   clang: warning: argument unused during compilation: '-pie' [-Wunused-command-line-argument]
   

2. fanquake added the label macOS on Apr 3, 2018
3. MarcoFalke added the label Build system on Apr 3, 2018
4. MarcoFalke added this to the milestone 0.17.0 on Apr 3, 2018
5. 
   AkioNak commented at 5:46 PM on April 3, 2018: contributor

   The same warning was output in my environment (master ad960f577/macos 10.13.4/clang-902.0.39.1) So, I tried to pass "-Wl, -pie" instead of "-pie" via $HARDENED_LDFLAGS,then the clang warning disappeared, but one new warning occurred in ld.

   ....
     CXXLD    libbitcoinconsensus.la
   ld: warning: -pie being ignored. It is only used when linking a main executable
     AR       libbitcoin_server.a
   ...
   

6. AkioNak referenced this in commit be468dd379 on Apr 5, 2018
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10. jonasschnelli referenced this in commit 3076993048 on Apr 17, 2018
11. jonasschnelli referenced this in commit 8cdbc04e91 on Apr 17, 2018
12. 
    fanquake commented at 5:08 AM on April 18, 2018: member

    Fixed by #12899.

13. fanquake closed this on Apr 18, 2018

    ---

14. stamhe referenced this in commit 8d8486e461 on Jun 27, 2018
15. HashUnlimited referenced this in commit 6042f9222f on Sep 5, 2018
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21. DrahtBot locked this on Sep 8, 2021

Milestone
0.17.0