[MacPorts] #74342: clang-22 +libstdcxx fails to build on macos 15.7.8

[MacPorts]

#74342: clang-22 +libstdcxx fails to build on macos 15.7.8
--------------------+--------------------
 Reporter:  misos1  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:
--------------------+--------------------
 Seems this patch is applied: https://github.com/macports/macports-
 ports/blob/master/lang/llvm-devel/files/0005-clang-support-macports-
 libstdcxx.patch

 It calls 6-argument overload of AddGnuCPlusPlusIncludePaths which does not
 exist on the class it is called in. There is just 2-argument overload, and
 it is a virtual function overridden in child class, which actually
 contains also this 6-argument overload. I successfully compiled it after
 adding also this 6-argument overload into base class in Darwin.cpp and
 Darwin.h.

 :info:build /opt/local/var/macports/build/clang-22-11196b9d/work/llvm-
 project-22.1.8.src/clang/lib/Driver/ToolChains/Darwin.cpp:2810:81: error:
 too many arguments to function call, expected 2, have 6
 :info:build  2810 |     bool IsBaseFoundMacPorts =
 AddGnuCPlusPlusIncludePaths(DriverArgs, CC1Args,
 llvm::StringRef("/opt/local/include/gcc/c++"),
 :info:build       |
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 :info:build  2811 |                                                    "",
 :info:build       |                                                    ~~~
 :info:build  2812 |
 "x86_64-apple-darwin24",
 :info:build       |
 ~~~~~~~~~~~~~~~~~~~~~~~~
 :info:build  2813 |
 getTriple().getArch() == llvm::Triple::x86_64 ? "" : "i386");
 :info:build       |
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 :info:build /opt/local/var/macports/build/clang-22-11196b9d/work/llvm-
 project-22.1.8.src/clang/lib/Driver/ToolChains/Darwin.h:344:3: note:
 'AddGnuCPlusPlusIncludePaths' declared here
 :info:build   344 |   AddGnuCPlusPlusIncludePaths(const llvm::opt::ArgList
 &DriverArgs,
 :info:build       |   ^
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 :info:build   345 |                               llvm::opt::ArgStringList
 &CC1Args) const;
 :info:build       |
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 :info:build /opt/local/var/macports/build/clang-22-11196b9d/work/llvm-
 project-22.1.8.src/clang/lib/Driver/ToolChains/Darwin.cpp:2810:10:

-- 
Ticket URL: <https://trac.macports.org/ticket/74342>
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