[MacPorts] #70750: MacOS Sequoia: C++ headers are not found with CLTs installed

[MacPorts]

#70750: MacOS Sequoia: C++ headers are not found with CLTs installed
-----------------------+---------------------
  Reporter:  SaintBol  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  sequoia
      Port:            |
-----------------------+---------------------

Comment (by reneeotten):

 Replying to [comment:5 neverpanic]:
 > Looks to me like a bug in the Command Line Tools:

 On Sequoia with updated XCode and CLT I see:
 {{{
 ❯ cat testiostream.cc
 #include <iostream>
 using namespace std;

 int main (int argc, char *argv[]) {
   cout << "foooooo\n";
 }

 ❯ export DEVELOPER_DIR='/Library/Developer/CommandLineTools'

 ❯ which clang++
 /usr/bin/clang++

 ❯ clang++ -v testiostream.cc
 Apple clang version 16.0.0 (clang-1600.0.26.3)
 Target: x86_64-apple-darwin24.0.0
 Thread model: posix
 InstalledDir: /Library/Developer/CommandLineTools/usr/bin
 ignoring nonexistent directory
 "/Library/Developer/CommandLineTools/usr/bin/../include/c++/v1"
  "/Library/Developer/CommandLineTools/usr/bin/clang" -cc1 -triple x86_64
 -apple-macosx15.0.0 -Wundef-prefix=TARGET_OS_ -Wdeprecated-objc-isa-usage
 -Werror=deprecated-objc-isa-usage -Werror=implicit-function-declaration
 -emit-obj -mrelax-all -dumpdir a- -disable-free -clear-ast-before-backend
 -disable-llvm-verifier -discard-value-names -main-file-name
 testiostream.cc -mrelocation-model pic -pic-level 2 -mframe-pointer=all
 -fno-strict-return -ffp-contract=on -fno-rounding-math -funwind-tables=2
 -target-sdk-version=15.0 -fvisibility-inlines-hidden-static-local-var
 -fno-modulemap-allow-subdirectory-search -target-cpu penryn -tune-cpu
 generic -debugger-tuning=lldb -target-linker-version 1115.7.3 -v
 -fcoverage-compilation-dir=/Users/renee -resource-dir
 /Library/Developer/CommandLineTools/usr/lib/clang/16 -isysroot
 /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include
 -internal-isystem
 /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1
 -internal-isystem
 /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/local/include
 -internal-isystem
 /Library/Developer/CommandLineTools/usr/lib/clang/16/include -internal-
 externc-isystem
 /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -internal-
 externc-isystem /Library/Developer/CommandLineTools/usr/include -Wno-
 reorder-init-list -Wno-implicit-int-float-conversion -Wno-c99-designator
 -Wno-final-dtor-non-final-class -Wno-extra-semi-stmt -Wno-misleading-
 indentation -Wno-quoted-include-in-framework-header -Wno-implicit-
 fallthrough -Wno-enum-enum-conversion -Wno-enum-float-conversion -Wno-
 elaborated-enum-base -Wno-reserved-identifier -Wno-gnu-folding-constant
 -fdeprecated-macro -fdebug-compilation-dir=/Users/renee -ferror-limit 19
 -stack-protector 1 -fstack-check -mdarwin-stkchk-strong-link -fblocks
 -fencode-extended-block-signature -fregister-global-dtors-with-atexit
 -fgnuc-version=4.2.1 -fno-cxx-modules -fcxx-exceptions -fexceptions -fmax-
 type-align=16 -fcommon -fcolor-diagnostics -clang-vendor-
 feature=+disableNonDependentMemberExprInCurrentInstantiation -fno-odr-
 hash-protocols -clang-vendor-feature=+enableAggressiveVLAFolding -clang-
 vendor-feature=+revert09abecef7bbf -clang-vendor-feature=+thisNoAlignAttr
 -clang-vendor-feature=+thisNoNullAttr -clang-vendor-
 feature=+disableAtImportPrivateFrameworkInImplementationError
 -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o
 /var/folders/qn/5bwbztqn3kqd3sd888hb_llm0000gn/T/testiostream-21103f.o -x
 c++ testiostream.cc
 clang -cc1 version 16.0.0 (clang-1600.0.26.3) default target x86_64-apple-
 darwin24.0.0
 ignoring nonexistent directory "/usr/local/include"
 ignoring nonexistent directory
 "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/local/include"
 ignoring nonexistent directory
 "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/Library/Frameworks"
 #include "..." search starts here:
 #include <...> search starts here:
  /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1
  /Library/Developer/CommandLineTools/usr/lib/clang/16/include
  /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include
  /Library/Developer/CommandLineTools/usr/include
 /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks
 (framework directory)
 End of search list.
  "/Library/Developer/CommandLineTools/usr/bin/ld" -demangle -lto_library
 /Library/Developer/CommandLineTools/usr/lib/libLTO.dylib -no_deduplicate
 -dynamic -arch x86_64 -platform_version macos 15.0.0 15.0 -syslibroot
 /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -mllvm -enable-
 linkonceodr-outlining -o a.out -L/usr/local/lib
 /var/folders/qn/5bwbztqn3kqd3sd888hb_llm0000gn/T/testiostream-21103f.o
 -lc++ -lSystem
 /Library/Developer/CommandLineTools/usr/lib/clang/16/lib/darwin/libclang_rt.osx.a
 }}}

 the directory is present in the include and so far all ports are
 installing just fine (the `port migrate` is still running as we speak).

 As suggested by Josh in the e-mail thread here some additional info that
 perhaps could be helpful:
 {{{
 ❯ pkgutil --pkg-
 info=com.apple.pkg.{CLTools_Executables,CLTools_Base,DeveloperToolsCLI,DeveloperToolsCLILeo}
 2>/dev/null | sed -n 's/^version: //p'
 16.0.0.0.1.1724870825

 ❯ sh -c 'echo "macOS $(sw_vers -productVersion) $(sw_vers -buildVersion)
 $(uname -m)"; xcode=$(xcodebuild -version 2>/dev/null); if [ $? == 0 ];
 then echo "$(echo "$xcode" | awk '\''NR==1{x=$0}END{print x" "$NF}'\'')";
 else echo "Command Line Tools $(pkgutil --pkg-
 info=com.apple.pkg.CLTools_Executables | awk '\''/version:/ {print
 $2}'\'')"; fi' | tee /dev/tty
 macOS 15.0 24A335 x86_64
 Command Line Tools 16.0.0.0.1.1724870825
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/70750#comment:20>
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