git: a28dcb76226d - main - devel/llvm11: fix build with libc++ 19

The branch main has been updated by dim:

URL: https://cgit.FreeBSD.org/ports/commit/?id=a28dcb76226d086ce3ffe928bbf138e207e691d6

commit a28dcb76226d086ce3ffe928bbf138e207e691d6
Author:     Dimitry Andric <dim@FreeBSD.org>
AuthorDate: 2024-08-02 20:03:04 +0000
Commit:     Dimitry Andric <dim@FreeBSD.org>
CommitDate: 2024-08-02 22:02:46 +0000

    devel/llvm11: fix build with libc++ 19
    
    As noted in the libc++ 19 release notes [1], std::char_traits<> is now
    only provided for char, char8_t, char16_t, char32_t and wchar_t, and any
    instantiation for other types will fail.
    
    This causes devel/llvm11 to fail to compile with clang 19 and libc++
    19, resulting in errors similar to:
    
        /usr/include/c++/v1/string:820:42: error: implicit instantiation of undefined template 'std::char_traits<unsigned char>'
          820 |   static_assert(is_same<_CharT, typename traits_type::char_type>::value,
              |                                          ^
        /wrkdirs/usr/ports/devel/llvm11/work-default/llvm-11.0.1.src/tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp:492:34: note: in instantiation of template class 'std::basic_string<unsigned char>' requested here
          638 |       std::basic_string<uint8_t> zeros(reg_info.byte_size, '\0');
              |                                  ^
        /usr/include/c++/v1/__fwd/string.h:23:29: note: template is declared here
           23 | struct _LIBCPP_TEMPLATE_VIS char_traits;
              |                             ^
    
    Upstream llvm has fixed this in commit 68744ffbdd7d [2], so add this as
    a backported patch file.
    
    [1] https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals
    [2] https://github.com/llvm/llvm-project/commit/68744ffbdd7d
    
    PR:             280579
    Approved by:    brooks (maintainer)
    MFH:            2024Q3
---
 devel/llvm11/files/patch-backport-68744ffbdd | 29 ++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/devel/llvm11/files/patch-backport-68744ffbdd b/devel/llvm11/files/patch-backport-68744ffbdd
new file mode 100644
index 000000000000..d687ec9a0cdd
--- /dev/null
+++ b/devel/llvm11/files/patch-backport-68744ffbdd
@@ -0,0 +1,29 @@
+commit 68744ffbdd7daac41da274eef9ac0d191e11c16d
+Author: Martin Storsjö <martin@martin.st>
+Date:   2023-08-10T11:09:36+03:00
+
+    [lldb] Fix building with latest libc++
+    
+    Since https://reviews.llvm.org/D157058 in libc++,
+    the base template for char_traits has been removed - it is only
+    provided for char, wchar_t, char8_t, char16_t and char32_t.
+    (Thus, to use basic_string with a type other than those, we'd need
+    to supply suitable traits ourselves.)
+    
+    For this particular use, a vector works just as well as basic_string.
+    
+    Differential Revision: https://reviews.llvm.org/D157589
+
+diff --git tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
+index 4efc454967a1..f9d95fc5d2a6 100644
+--- tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
++++ tools/lldb/source/Plugins/Process/gdb-remote/GDBRemoteCommunicationServerLLGS.cpp
+@@ -631,7 +631,7 @@ static void WriteRegisterValueInHexFixedWidth(
+   } else {
+     // Zero-out any unreadable values.
+     if (reg_info.byte_size > 0) {
+-      std::basic_string<uint8_t> zeros(reg_info.byte_size, '\0');
++      std::vector<uint8_t> zeros(reg_info.byte_size, '\0');
+       AppendHexValue(response, zeros.data(), zeros.size(), false);
+     }
+   }