Re: audio/musescore update from 3.6.2 to 4.5.2 in wip/musescore

["David H. Gutteridge" <david%gutteridge.ca@localhost>]

On Fri, 2025-08-08 at 22:07 +1000, Paul Ripke wrote:
> It works for me; I looked into upstreaming patches, but it seems they
> have a few hoops to jump thru for non-tiny changes.
> 
> Has anyone else had dealings with them before?

The short summary would be it needs some work in order to integrate
with the present state of pkgsrc. There's a missing dependency or two
(easily addressed), but it doesn't build for me with the current Qt 6
version (6.9.1) we have.

The package will also need (at least)
TOOL_DEPENDS+=  qt6-qttools-[0-9]*:../../devel/qt6-qttools
as it expects CMake files provided by that package at build-time.

Otherwise, a sandboxed build gets:

CMake Error at buildscripts/cmake/SetupQt6.cmake:60 (find_package):
  By not providing "FindQt6LinguistTools.cmake" in CMAKE_MODULE_PATH
this
  project has asked CMake to find a package configuration file provided
by
  "Qt6LinguistTools", but CMake did not find one.

  Could not find a package configuration file provided by
"Qt6LinguistTools"
  with any of the following names:

    Qt6LinguistToolsConfig.cmake
    qt6linguisttools-config.cmake

I wondered if it would also expect or benefit from qt6-qttranslations
(following the older version).

Separately, trying to build it against current pkgsrc, it fails for me
(this is with NetBSD 10.99.14 from early June, with GCC 12.4), beginning
with:

In file included from /tmp/pkgsrc_work/wip/musescore/work/MuseScore-
4.5.2/cmake-pkgsrc-
build/src/importexport/bww/CMakeFiles/iex_bww.dir/Unity/unity_0_cxx.cxx:
10:
/tmp/pkgsrc_work/wip/musescore/work/MuseScore-
4.5.2/src/importexport/bww/internal/bww/lexer.cpp: In constructor
'Bww::Lexer::Lexer(QIODevice*)':
/tmp/pkgsrc_work/wip/musescore/work/MuseScore-
4.5.2/src/importexport/bww/internal/bww/lexer.cpp:45:21: error: no
matching function for call to 'QChar::QChar(Bww::Symbol)'
   45 |     value(QChar(NONE))
      |                     ^
In file included from /usr/pkg/qt6/include/QtCore/qstring.h:15,
                 from /usr/pkg/qt6/include/QtCore/qobject.h:11,
                 from /usr/pkg/qt6/include/QtCore/QObject:1,
                 from /tmp/pkgsrc_work/wip/musescore/work/MuseScore-
4.5.2/buildscripts/pch/pch.h:74,
                 from /tmp/pkgsrc_work/wip/musescore/work/MuseScore-
4.5.2/cmake-pkgsrc-
build/src/framework/global/CMakeFiles/muse_global.dir/cmake_pch.hxx:5,
                 from <command-line>:
/usr/pkg/qt6/include/QtCore/qchar.h:149:43: note: candidate:
'template<class Char, typename std::enable_if<std::is_same<Char,
unsigned char>::value, bool>::type <anonymous> > constexpr
QChar::QChar(Char)'
  149 |     QT_ASCII_CAST_WARN constexpr explicit QChar(const Char c)
noexcept : ucs(c) { }
      |                                           ^~~~~
/usr/pkg/qt6/include/QtCore/qchar.h:149:43: note:   template argument
deduction/substitution failed:
/usr/pkg/qt6/include/QtCore/qchar.h:148:66: error: no type named 'type'
in 'struct std::enable_if<false, bool>'
  148 |     template <typename Char, if_explicit_ascii_warn_char<Char> =
true>
      |                                                                
^~~~
/usr/pkg/qt6/include/QtCore/qchar.h:143:45: note: candidate:
'template<class Char, typename std::enable_if<std::is_same<Char,
char>::value, bool>::type <anonymous> > constexpr QChar::QChar(Char)'
  143 |     QT_ASCII_CAST_WARN constexpr Q_IMPLICIT QChar(const Char ch)
noexcept : ucs(uchar(ch)) {}

(and so on...)

This led me to
https://github.com/musescore/MuseScore/issues/27860
("This is a sign that you are building with Qt 6.9, which isn't
supported yet"), which points to
https://github.com/musescore/MuseScore/pull/25016

I'm inferring you tested with pkgsrc Qt 6 prior to the update to 6.9.1
(made around July 1st)?

We'd need to either carry further patches to build with Qt 6.9, or wait
until the next upstream release (which appears will have their change
set).

Regards,

Dave