[MacPorts] #66380: clang-14: unable to locate default SDK

[MacPorts]

#66380: clang-14: unable to locate default SDK
---------------------------+--------------------
  Reporter:  MarcKaufmann  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  clang-14      |
---------------------------+--------------------

Comment (by MarcKaufmann):

 I had to switch the xcode-select (-s) and now it has the right path (it
 seems):

 {{{
  % xcode-select -p
 /Applications/Xcode.app/Contents/Developer
 }}}

 The script still fails:

 {{{
 % cat test.cpp
 #include <stdint.h>
 uint64_t v;
 int main() {
     return (int)__atomic_load_n(&v, __ATOMIC_ACQUIRE);
 }
 % clang++-mp-14 -v -Wl, -v test.cpp
 clang version 14.0.6
 Target: arm64-apple-darwin22.1.0
 Thread model: posix
 InstalledDir: /opt/local/libexec/llvm-14/bin
  "/opt/local/libexec/llvm-14/bin/clang" -cc1 -triple arm64-apple-
 macosx13.0.0 -Wundef-prefix=TARGET_OS_ -Werror=undef-prefix -Wdeprecated-
 objc-isa-usage -Werror=deprecated-objc-isa-usage -emit-obj -mrelax-all
 --mrelax-relocations -disable-free -clear-ast-before-backend -disable-
 llvm-verifier -discard-value-names -main-file-name test.cpp -mrelocation-
 model pic -pic-level 2 -mframe-pointer=non-leaf -ffp-contract=on -fno-
 rounding-math -funwind-tables=2 -fcompatibility-qualified-id-block-type-
 checking -fvisibility-inlines-hidden-static-local-var -target-cpu apple-m1
 -target-feature +v8.5a -target-feature +fp-armv8 -target-feature +neon
 -target-feature +crc -target-feature +crypto -target-feature +dotprod
 -target-feature +fp16fml -target-feature +ras -target-feature +lse
 -target-feature +rdm -target-feature +rcpc -target-feature +zcm -target-
 feature +zcz -target-feature +fullfp16 -target-feature +sha2 -target-
 feature +aes -target-abi darwinpcs -fallow-half-arguments-and-returns
 -mllvm -treat-scalable-fixed-error-as-warning -debugger-tuning=lldb
 -target-linker-version 820.1 -v -v -fcoverage-compilation-dir=/tmp
 -resource-dir /opt/local/libexec/llvm-14/lib/clang/14.0.6 -stdlib=libc++
 -internal-isystem /opt/local/libexec/llvm-14/bin/../include/c++/v1
 -internal-isystem /usr/local/include -internal-isystem
 /opt/local/libexec/llvm-14/lib/clang/14.0.6/include -internal-externc-
 isystem /usr/include -fdeprecated-macro -fdebug-compilation-dir=/tmp
 -ferror-limit 19 -stack-protector 1 -fblocks -fencode-extended-block-
 signature -fregister-global-dtors-with-atexit -fgnuc-version=4.2.1 -fcxx-
 exceptions -fexceptions -fmax-type-align=16 -fcolor-diagnostics
 -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o
 /var/folders/8_/0lh40nm57qq3069hrzss3s1m0000gn/T/test-87379a.o -x c++
 test.cpp
 clang -cc1 version 14.0.6 based upon LLVM 14.0.6 default target arm64
 -apple-darwin22.1.0
 ignoring nonexistent directory "/usr/local/include"
 ignoring nonexistent directory "/usr/include"
 #include "..." search starts here:
 #include <...> search starts here:
  /opt/local/libexec/llvm-14/bin/../include/c++/v1
  /opt/local/libexec/llvm-14/lib/clang/14.0.6/include
  /System/Library/Frameworks (framework directory)
  /Library/Frameworks (framework directory)
 End of search list.
  "/opt/local/libexec/llvm-14/bin/ld" -demangle -lto_library
 /opt/local/libexec/llvm-14/lib/libLTO.dylib -no_deduplicate -dynamic -arch
 arm64 -platform_version macos 13.0.0 13.0.0 -o a.out
 /var/folders/8_/0lh40nm57qq3069hrzss3s1m0000gn/T/test-87379a.o -lc++
 -lSystem
 /opt/local/libexec/llvm-14/lib/clang/14.0.6/lib/darwin/libclang_rt.osx.a
 ld: library not found for -lc++
 clang: error: linker command failed with exit code 1 (use -v to see
 invocation)
  }}}

 Next I'll be running the recompiles for clang-14. Gonna be a while:

 {{{
 sudo port -f uninstall clang-14 llvm-14
 sudo port -v -s -N install clang-14
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/66380#comment:18>
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