$ makepkg --cleanbuild --sign -f
==> Making package: darling-dmg-git v1.0.4.r97.ga36bf0c-1 (Mon 19 Aug 2024 07:14:48 AM MDT)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving sources...
  -> Updating darling-dmg git repo...
==> Validating source files with sha256sums...
    darling-dmg ... Skipped
==> Removing existing $srcdir/ directory...
==> Extracting sources...
  -> Creating working copy of darling-dmg git repo...
Cloning into 'darling-dmg'...
done.
==> Starting prepare()...
==> Starting pkgver()...
==> Removing existing $pkgdir/ directory...
==> Starting build()...
CMake Warning (dev) at CMakeLists.txt:1 (project):
  cmake_minimum_required() should be called prior to this top-level project()
  call.  Please see the cmake-commands(7) manual for usage documentation of
  both commands.
This warning is for project developers.  Use -Wno-dev to suppress it.

-- The C compiler identification is GNU 14.2.1
-- The CXX compiler identification is GNU 14.2.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found PkgConfig: /usr/bin/pkg-config (found version "2.1.1")
-- Found LibXml2: /usr/lib/libxml2.so
CMake Warning (dev) at CMakeLists.txt:53 (find_package):
  Policy CMP0167 is not set: The FindBoost module is removed.  Run "cmake
  --help-policy CMP0167" for policy details.  Use the cmake_policy command to
  set the policy and suppress this warning.

This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found Boost: /usr/lib/cmake/Boost-1.83.0/BoostConfig.cmake (found version "1.83.0") found components: unit_test_framework
-- Configuring done (0.4s)
-- Generating done (0.0s)
-- Build files have been written to: /home/exampleuser/src/pub/pkgbuild/darling-dmg-git/src/darling-dmg/build
[  9%] Building CXX object CMakeFiles/CacheTest.dir/src/Reader.cpp.o
[  9%] Building CXX object CMakeFiles/dmg.dir/src/unichar.cpp.o
[ 12%] Building CXX object CMakeFiles/dmg.dir/src/HFSVolume.cpp.o
[ 15%] Building CXX object CMakeFiles/CacheTest.dir/src/CacheZone.cpp.o
[ 18%] Building CXX object CMakeFiles/CacheTest.dir/src/CachedReader.cpp.o
[  9%] Building CXX object CMakeFiles/dmg.dir/src/FileReader.cpp.o
[ 21%] Building CXX object CMakeFiles/CacheTest.dir/test/CacheTest.cpp.o
[ 25%] Building CXX object CMakeFiles/dmg.dir/src/Reader.cpp.o
[ 28%] Building CXX object CMakeFiles/CacheTest.dir/src/MemoryReader.cpp.o
In file included from /usr/include/unicode/unistr.h:39,
                 from /home/exampleuser/src/pub/pkgbuild/darling-dmg-git/src/darling-dmg/src/unichar.cpp:3:
/usr/include/unicode/stringpiece.h:133:29: error: ‘enable_if_t’ in namespace ‘std’ does not name a template type
  133 |             typename = std::enable_if_t<
      |                             ^~~~~~~~~~~
/usr/include/unicode/stringpiece.h:133:24: note: ‘std::enable_if_t’ is only available from C++14 onwards
  133 |             typename = std::enable_if_t<
      |                        ^~~
/usr/include/unicode/stringpiece.h:133:40: error: expected ‘>’ before ‘<’ token
  133 |             typename = std::enable_if_t<
      |                                        ^
In file included from /usr/include/unicode/uenum.h:25,
                 from /usr/include/unicode/ucnv.h:52,
                 from /home/exampleuser/src/pub/pkgbuild/darling-dmg-git/src/darling-dmg/src/unichar.cpp:4:
/usr/include/unicode/localpointer.h:561:26: error: parameter declared ‘auto’
  561 | template <typename Type, auto closeFunction>
      |                          ^~~~
/usr/include/unicode/localpointer.h:573:76: error: template argument 2 is invalid
  573 |     explicit LocalOpenPointer(std::unique_ptr<Type, decltype(closeFunction)> &&p)
      |                                                                            ^
/usr/include/unicode/localpointer.h:583:78: error: template argument 2 is invalid
  583 |     LocalOpenPointer &operator=(std::unique_ptr<Type, decltype(closeFunction)> &&p) {
      |                                                                              ^
/usr/include/unicode/localpointer.h:599:59: error: template argument 2 is invalid
  599 |     operator std::unique_ptr<Type, decltype(closeFunction)> () && {
      |                                                           ^
/usr/include/unicode/uenum.h:69:1: note: invalid template non-type parameter
   69 | U_DEFINE_LOCAL_OPEN_POINTER(LocalUEnumerationPointer, UEnumeration, uenum_close);
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/unicode/ucnv.h:597:1: note: invalid template non-type parameter
  597 | U_DEFINE_LOCAL_OPEN_POINTER(LocalUConverterPointer, UConverter, ucnv_close);
      | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 31%] Building CXX object CMakeFiles/dmg.dir/src/AppleDisk.cpp.o
[ 34%] Building CXX object CMakeFiles/dmg.dir/src/SubReader.cpp.o
[ 37%] Building CXX object CMakeFiles/dmg.dir/src/HFSBTree.cpp.o
[ 40%] Building CXX object CMakeFiles/dmg.dir/src/HFSFork.cpp.o
make[2]: *** [CMakeFiles/dmg.dir/build.make:76: CMakeFiles/dmg.dir/src/unichar.cpp.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [CMakeFiles/Makefile2:113: CMakeFiles/dmg.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[ 43%] Linking CXX executable CacheTest
[ 43%] Built target CacheTest
make: *** [Makefile:146: all] Error 2
==> ERROR: A failure occurred in build().
    Aborting...