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Date:      Sun, 17 Nov 2024 18:45:55 GMT
From:      Dimitry Andric <dim@FreeBSD.org>
To:        ports-committers@FreeBSD.org, dev-commits-ports-all@FreeBSD.org, dev-commits-ports-main@FreeBSD.org
Subject:   git: 1b22fed46cec - main - cad/kicad-devel: fix build with libc++ 19
Message-ID:  <202411171845.4AHIjtJK053893@gitrepo.freebsd.org>

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The branch main has been updated by dim:

URL: https://cgit.FreeBSD.org/ports/commit/?id=1b22fed46cec0d16c24ead535ebfe329981f9a20

commit 1b22fed46cec0d16c24ead535ebfe329981f9a20
Author:     Dimitry Andric <dim@FreeBSD.org>
AuthorDate: 2024-11-03 10:57:05 +0000
Commit:     Dimitry Andric <dim@FreeBSD.org>
CommitDate: 2024-11-17 18:45:21 +0000

    cad/kicad-devel: 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 cad/kicad-devel to fail to compile with clang 19 and libc++
    19, resulting in errors similar to:
    
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/thirdparty/nanodbc/nanodbc/nanodbc.cpp:261:25: error: implicit instantiation of undefined template 'std::char_traits<unsigned short>'
        261 |     auto const n = std::char_traits<NANODBC_SQLCHAR>::length(array);
            |                         ^
      /usr/include/c++/v1/__string/char_traits.h:45:8: note: template is declared here
         45 | struct char_traits;
            |        ^
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/thirdparty/nanodbc/nanodbc/nanodbc.cpp:3576:52: error: implicit instantiation of undefined template 'std::char_traits<unsigned short>'
       3576 |             dsn.name = string(&name[0], &name[std::char_traits<NANODBC_SQLCHAR>::length(name)]);
            |                                                    ^
      /usr/include/c++/v1/__string/char_traits.h:45:8: note: template is declared here
         45 | struct char_traits;
            |        ^
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/thirdparty/nanodbc/nanodbc/nanodbc.cpp:3578:49: error: implicit instantiation of undefined template 'std::char_traits<unsigned short>'
       3578 |                 string(&driver[0], &driver[std::char_traits<NANODBC_SQLCHAR>::length(driver)]);
            |                                                 ^
      /usr/include/c++/v1/__string/char_traits.h:45:8: note: template is declared here
         45 | struct char_traits;
            |        ^
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/thirdparty/nanodbc/nanodbc/nanodbc.cpp:3629:54: error: implicit instantiation of undefined template 'std::char_traits<unsigned short>'
       3629 |             drv.name = string(&descr[0], &descr[std::char_traits<NANODBC_SQLCHAR>::length(descr)]);
            |                                                      ^
      /usr/include/c++/v1/__string/char_traits.h:45:8: note: template is declared here
         45 | struct char_traits;
            |        ^
    
    and:
    
      /usr/include/c++/v1/string:820:42: error: implicit instantiation of undefined template 'std::char_traits<unsigned short>'
        820 |   static_assert(is_same<_CharT, typename traits_type::char_type>::value,
            |                                          ^
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/thirdparty/compoundfilereader/compoundfilereader.h:226:21: note: in instantiation of template class 'std::basic_string<unsigned short>' requested here
        226 |         utf16string dir;
            |                     ^
      /usr/include/c++/v1/__fwd/string.h:23:29: note: template is declared here
         23 | struct _LIBCPP_TEMPLATE_VIS char_traits;
            |                             ^
    
    and:
    
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/thirdparty/nlohmann_json/nlohmann/json.hpp:3604:22: error: implicit instantiation of undefined template 'std::char_traits<wxUniChar>'
       3604 | struct char_traits : std::char_traits<T>
            |                      ^
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/thirdparty/nlohmann_json/nlohmann/json.hpp:6289:14: note: in instantiation of template class 'nlohmann::detail::char_traits<wxUniChar>' requested here
       6289 |     typename char_traits<char_type>::int_type get_character()
            |              ^
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/thirdparty/nlohmann_json/nlohmann/json.hpp:6465:22: note: in instantiation of template class 'nlohmann::detail::iterator_input_adapter<wxString::const_iterator>' requested here
       6465 |     BaseInputAdapter base_adapter;
            |                      ^
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/thirdparty/nlohmann_json/nlohmann/json.hpp:23323:16: note: in instantiation of template class 'nlohmann::detail::wide_string_input_adapter<nlohmann::detail::iterator_input_adapter<wxString::const_iterator>, wxUniChar>' requested here
       23323 |         parser(detail::input_adapter(std::forward<InputType>(i)), cb, allow_exceptions, ignore_comments).parse(true, result);
             |                ^
      /wrkdirs/usr/ports/cad/kicad-devel/work/kicad-6ebd8f46fe24533214b9ed43f1f7e5a4b80dcc71/eeschema/sch_io/easyedapro/sch_io_easyedapro.cpp:209:53: note: in instantiation of function template specialization 'nlohmann::basic_json<>::parse<wxString>' requested here
        209 |                 nlohmann::json js = nlohmann::json::parse( txt.ReadLine() );
            |                                                     ^
      /usr/include/c++/v1/__string/char_traits.h:45:8: note: template is declared here
         45 | struct char_traits;
            |        ^
    
    The first batch of errors can be fixed by providing a simple `length()`
    function for the `NANODBC_SQLCHAR const*` type. The second batch can be
    fixed by using `std::basic_string<char16_t>` for `utf16string`, and
    adjusting the call to `std::basic_string<char16_t>::append`. The third
    batch can be fixed by adding a `char_traits` definition specifically for
    the `wxUniChar` type.
    
    [1] https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals
    
    PR:             282512
    Approved by:    maintainer timeout (2 weeks)
    MFH:            2024Q4
---
 ...hema_sch__io_easyedapro_sch__io__easyedapro.cpp | 34 +++++++++++++++++
 ...rdparty_compoundfilereader_compoundfilereader.h | 20 ++++++++++
 .../patch-thirdparty_nanodbc_nanodbc_nanodbc.cpp   | 44 ++++++++++++++++++++++
 3 files changed, 98 insertions(+)

diff --git a/cad/kicad-devel/files/patch-eeschema_sch__io_easyedapro_sch__io__easyedapro.cpp b/cad/kicad-devel/files/patch-eeschema_sch__io_easyedapro_sch__io__easyedapro.cpp
new file mode 100644
index 000000000000..02c96710df87
--- /dev/null
+++ b/cad/kicad-devel/files/patch-eeschema_sch__io_easyedapro_sch__io__easyedapro.cpp
@@ -0,0 +1,34 @@
+--- eeschema/sch_io/easyedapro/sch_io_easyedapro.cpp.orig	2024-10-11 09:03:05 UTC
++++ eeschema/sch_io/easyedapro/sch_io_easyedapro.cpp
+@@ -105,6 +105,31 @@ int SCH_IO_EASYEDAPRO::GetModifyHash() const
+ }
+ 
+ 
++// Explicitly define char traits for wxUniChar since it is not standard
++template<>
++struct nlohmann::detail::char_traits<wxUniChar> : std::char_traits<char32_t>
++{
++    using char_type = wxUniChar;
++    using int_type = uint32_t;
++
++    // Redefine to_int_type function
++    static int_type to_int_type(char_type c) noexcept
++    {
++        return static_cast<int_type>(c);
++    }
++
++    static char_type to_char_type(int_type i) noexcept
++    {
++        return static_cast<char_type>(i);
++    }
++
++    static constexpr int_type eof() noexcept
++    {
++        return ~0U;
++    }
++};
++
++
+ static LIB_SYMBOL* loadSymbol( nlohmann::json project, const wxString& aLibraryPath,
+                                const wxString& aAliasName, const std::map<std::string, UTF8>* aProperties )
+ {
diff --git a/cad/kicad-devel/files/patch-thirdparty_compoundfilereader_compoundfilereader.h b/cad/kicad-devel/files/patch-thirdparty_compoundfilereader_compoundfilereader.h
new file mode 100644
index 000000000000..be30bfbdd7da
--- /dev/null
+++ b/cad/kicad-devel/files/patch-thirdparty_compoundfilereader_compoundfilereader.h
@@ -0,0 +1,20 @@
+--- thirdparty/compoundfilereader/compoundfilereader.h.orig	2024-10-11 09:03:05 UTC
++++ thirdparty/compoundfilereader/compoundfilereader.h
+@@ -131,7 +131,7 @@ struct helper
+     }
+ };
+ 
+-typedef std::basic_string<uint16_t> utf16string;
++typedef std::basic_string<char16_t> utf16string;
+ typedef std::function<int(const COMPOUND_FILE_ENTRY*, const utf16string& dir, int level)>
+     EnumFilesCallback;
+ 
+@@ -249,7 +249,7 @@ class CompoundFileReader (private)
+             utf16string newDir = dir;
+             if (dir.length() != 0)
+                 newDir.append(1, '\n');
+-            newDir.append(entry->name, entry->nameLen / 2);
++            newDir.append(reinterpret_cast<const char16_t*>(entry->name), entry->nameLen / 2);
+             EnumNodes(GetEntry(entry->childID), currentLevel + 1, maxLevel, newDir, callback);
+         }
+ 
diff --git a/cad/kicad-devel/files/patch-thirdparty_nanodbc_nanodbc_nanodbc.cpp b/cad/kicad-devel/files/patch-thirdparty_nanodbc_nanodbc_nanodbc.cpp
new file mode 100644
index 000000000000..6cfdd8b1abbc
--- /dev/null
+++ b/cad/kicad-devel/files/patch-thirdparty_nanodbc_nanodbc_nanodbc.cpp
@@ -0,0 +1,44 @@
+--- thirdparty/nanodbc/nanodbc/nanodbc.cpp.orig	2024-10-11 09:03:05 UTC
++++ thirdparty/nanodbc/nanodbc/nanodbc.cpp
+@@ -255,10 +255,19 @@ constexpr std::size_t size(const T (&array)[N]) noexce
+ }
+ #endif
+ 
++inline std::size_t length(NANODBC_SQLCHAR const* s)
++{
++  std::size_t len = 0;
++  for (; *s != 0; ++s)
++    ++len;
++  return len;
++  
++}
++
+ template <std::size_t N>
+ inline std::size_t size(NANODBC_SQLCHAR const (&array)[N]) noexcept
+ {
+-    auto const n = std::char_traits<NANODBC_SQLCHAR>::length(array);
++    auto const n = length(array);
+     NANODBC_ASSERT(n < N);
+     return n < N ? n : N - 1;
+ }
+@@ -3589,9 +3598,9 @@ std::list<datasource> list_datasources()
+                 "incompatible SQLCHAR and string::value_type");
+ 
+             datasource dsn;
+-            dsn.name = string(&name[0], &name[std::char_traits<NANODBC_SQLCHAR>::length(name)]);
++            dsn.name = string(&name[0], &name[length(name)]);
+             dsn.driver =
+-                string(&driver[0], &driver[std::char_traits<NANODBC_SQLCHAR>::length(driver)]);
++                string(&driver[0], &driver[length(driver)]);
+ 
+             dsns.push_back(std::move(dsn));
+             direction = SQL_FETCH_NEXT;
+@@ -3642,7 +3651,7 @@ std::list<driver> list_drivers()
+                 "incompatible SQLCHAR and string::value_type");
+ 
+             driver drv;
+-            drv.name = string(&descr[0], &descr[std::char_traits<NANODBC_SQLCHAR>::length(descr)]);
++            drv.name = string(&descr[0], &descr[length(descr)]);
+ 
+             // Split "Key1=Value1\0Key2=Value2\0\0" into list of key-value pairs
+             auto beg = &attrs[0];



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