libc++: update to 20.1.0

Use llvm-project tarball because libc++ now requires libc source code but It's not packaged as a tarball.
see: llvm/llvm-project#127404

mingw-w64-libc++/PKGBUILD

@@ -8,10 +8,8 @@ _realname=libc++
 pkgbase=mingw-w64-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}"
          "${MINGW_PACKAGE_PREFIX}-libunwind")
-_version=19.1.7
-_rc=""
-_tag=llvmorg-${_version}${_rc}
-pkgver=${_version}${_rc/-/}
+_pkgver=20.1.0
+pkgver=${_pkgver/-/}
 pkgrel=1
 arch=(any)
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clangarm64')
@@ -31,38 +29,18 @@ if [[ ${MINGW_PACKAGE_PREFIX} != *-clang-* ]]; then
   # GNU's strip breaks the library #11553
   options=('!strip')
 fi
-_url=https://github.com/llvm/llvm-project/releases/download/${_tag}
-source=("${_url}/libcxx-${pkgver}.src.tar.xz"{,.sig}
-        "${_url}/libcxxabi-${pkgver}.src.tar.xz"{,.sig}
-        "${_url}/libunwind-${pkgver}.src.tar.xz"{,.sig}
-        "${_url}/runtimes-${pkgver}.src.tar.xz"{,.sig}
-        "${_url}/llvm-${pkgver}.src.tar.xz"{,.sig}
-        "${_url}/cmake-${pkgver}.src.tar.xz"{,.sig})
-sha256sums=('b736109650ffc750dbdc506483347b3713ded9d0300f48432b820ad66b6a9052'
-            'SKIP'
-            '4d25125109e3febe1393e9e30f93153333d82b48ce7bed637bd2daf52bf40172'
-            'SKIP'
-            '10e650f436bc416674f01b5e01177405886f4d0f0b2568c6808044eacad52ea0'
-            'SKIP'
-            '404c54c2df45a307331eba1372917ec480addf3b77ca9943ed4d7ea445efb08f'
-            'SKIP'
-            '96f833c6ad99a3e8e1d9aca5f439b8fd2c7efdcf83b664e0af1c0712c5315910'
-            'SKIP'
-            '11c5a28f90053b0c43d0dec3d0ad579347fc277199c005206b963c19aae514e3'
+_url=https://github.com/llvm/llvm-project/releases/download/llvmorg-${_pkgver}
+source=("${_url}/llvm-project-${_pkgver}.src.tar.xz"{,.sig})
+sha256sums=('4579051e3c255fb4bb795d54324f5a7f3ef79bd9181e44293d7ee9a7f62aad9a'
             'SKIP')
 validpgpkeys=('B6C8F98282B944E3B0D5C2530FC3042E345AD05D'  # Hans Wennborg, Google.
               '474E22316ABF4785A88C6E8EA2C794A986419D8A'  # Tom Stellard
               'D574BD5D1D0E98895E3BF90044F2485E45D59042') # Tobias Hieta
-noextract=(libcxx-${pkgver}.src.tar.xz)
+noextract=(llvm-project-${_pkgver}.src.tar.xz)
 
 prepare() {
-  plain "Extracting libcxx-${pkgver}.src.tar.xz due to symlink(s) without pre-existing target(s)"
-  cd "${srcdir}"
-  tar -xJf "${srcdir}"/libcxx-${pkgver}.src.tar.xz -C "${srcdir}" || true
-  # Rename Directories
-  for pkg in cmake libcxx libcxxabi libunwind llvm runtimes; do
-    mv ${pkg}-$pkgver.src ${pkg}
-  done
+  plain "Extracting llvm-project-${_pkgver}.src.tar.xz due to symlink(s) without pre-existing target(s)"
+  tar -xJf "${srcdir}"/llvm-project-${_pkgver}.src.tar.xz -C "${srcdir}" || true
 }
 
 build() {
@@ -122,11 +100,12 @@ build() {
     -DLIBUNWIND_ENABLE_FRAME_APIS=ON \
     -DLIBUNWIND_ENABLE_SHARED=ON \
     -DLIBUNWIND_ENABLE_STATIC=ON \
+    -DENABLE_TIME_ZONE_DATABASE_DEFAULT=ON \
     -DLLVM_INCLUDE_TESTS=OFF \
     "${_extra_config[@]}" \
     -DPython3_EXECUTABLE=${MINGW_PREFIX}/bin/python.exe \
     -Wno-dev \
-    ../runtimes
+    ../llvm-project-${_pkgver}.src/runtimes
 
   ${MINGW_PREFIX}/bin/cmake --build . -- unwind cxxabi cxx cxx_experimental
 }
@@ -138,15 +117,14 @@ package_libc++() {
             $( (( _clangprefix )) && echo \
              "${MINGW_PACKAGE_PREFIX}-gcc-libs" \
              || true))
-  conflicts=("${MINGW_PACKAGE_PREFIX}-libc++abi")
-  replaces=("${MINGW_PACKAGE_PREFIX}-libc++abi")
   depends=($( (( _clangprefix )) && echo \
              "${MINGW_PACKAGE_PREFIX}-libunwind" \
              || echo "${MINGW_PACKAGE_PREFIX}-gcc-libs"))
 
   DESTDIR="${pkgdir}" ${MINGW_PREFIX}/bin/cmake --build "${srcdir}/build-${MSYSTEM}" --target install-cxx install-cxxabi
 
-  install -Dm644 "${srcdir}"/libcxx/LICENSE.TXT "${pkgdir}"${MINGW_PREFIX}/share/licenses/libc++/LICENSE
+  install -Dm644 "${srcdir}"/llvm-project-${_pkgver}.src/libcxx/LICENSE.TXT \
+    "${pkgdir}"${MINGW_PREFIX}/share/licenses/libc++/LICENSE
 }
 
 package_libunwind() {
@@ -156,7 +134,8 @@ package_libunwind() {
 
   DESTDIR="${pkgdir}" cmake --build "${srcdir}/build-${MSYSTEM}" --target install-unwind
 
-  install -Dm644 "${srcdir}"/libunwind/LICENSE.TXT "${pkgdir}"${MINGW_PREFIX}/share/licenses/libunwind/LICENSE
+  install -Dm644 "${srcdir}"/llvm-project-${_pkgver}.src/libunwind/LICENSE.TXT \
+    "${pkgdir}"${MINGW_PREFIX}/share/licenses/libunwind/LICENSE
 }
 
 # template start; name=mingw-w64-splitpkg-wrappers; version=1.0;