[package] doxygen/1.14.0: Build fails on Windows with cppstd=20

[Khrysys]

Description

During the build of Doxygen, it appears as though TinyDeflate/gunzip.hh throws many compilation errors such as the following:

C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\deps\TinyDeflate\gunzip.hh(438,41): error C2039: 'result_of': is not a member of 'std' (compiling source file C:\U
sers\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\build\src\doxymain.vcxproj]
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.37.32822\include\iterator(21,1): message : see declaration of 'std' (compiling source file C:
\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\deps\TinyDeflate\gunzip.hh(438,65): message : see reference to class template instantiation 'gunzip_ns::result_of<
F(Args...)>' being compiled (compiling source file C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyga16f80e406a
1a\b\build\src\doxymain.vcxproj]

There are also static_asserts that fail, in just as confusing of ways:

  fileparser.cpp
C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\deps\TinyDeflate\gunzip.hh(438,50): error C2059: syntax error: '<' (compiling source file C:\Users\goali\.conan2\p
\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\deps\TinyDeflate\gunzip.hh(454,5): message : see reference to class template instantiation 'gunzip_ns::result_of<D 
otRunner::readBoundingBox::<lambda_4> (void)>' being compiled (compiling source file C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp) [C:\Users\ 
goali\.conan2\p\b\doxyga16f80e406a1a\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\deps\TinyDeflate\gunzip.hh(453,31): message : see reference to alias template instantiation 'gunzip_ns::result_of_ 
t<DotRunner::readBoundingBox::<lambda_4>(void)>' being compiled (compiling source file C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp) [C:\User 
s\goali\.conan2\p\b\doxyga16f80e406a1a\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\deps\TinyDeflate\gunzip.hh(1407,27): message : see reference to variable template 'const bool is_input_functor_v<` 
DotRunner::readBoundingBox'::`19'::<lambda_4> &>' being compiled (compiling source file C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp) [C:\Use 
rs\goali\.conan2\p\b\doxyga16f80e406a1a\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\deps\TinyDeflate\gunzip.hh(1427,23): message : see reference to function template instantiation 'auto gunzip_ns::D 
eflateInputDispatch<0,gunzip_ns::dummy,DotRunner::readBoundingBox::<lambda_4>&,DotRunner::readBoundingBox::<lambda_5>&,>(BtFun &&,T1,T2)' being compiled [C:\Users\goa 
li\.conan2\p\b\doxyga16f80e406a1a\b\build\src\doxymain.vcxproj]
          with
          [
              BtFun=gunzip_ns::dummy,
              T1=DotRunner::readBoundingBox::<lambda_4> &,
              T2=DotRunner::readBoundingBox::<lambda_5> &
          ] (compiling source file C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp)
C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp(220,11): message : see reference to function template instantiation 'auto Deflate<DotRunner::rea 
dBoundingBox::<lambda_4>&,DotRunner::readBoundingBox::<lambda_5>&>(DotRunner::readBoundingBox::<lambda_4> &,DotRunner::readBoundingBox::<lambda_5> &)' being compiled  
[C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\deps\TinyDeflate\gunzip.hh(1417,31): error C2338: static_assert failed: 'Deflate: Mismatched parameters. Expected  
something for an input.' (compiling source file C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyga16f80e406a1a\ 
b\build\src\doxymain.vcxproj]

When I force the profile to run as -s compiler.cppstd=17, it builds fine. So there appears to be some issue with -s compiler.cppstd=20 and the build.

Package and Environment Details

• Package Name/Version: doxygen/1.14.0
• Operating System+version: Windows 11
• Compiler+version: MSVC 19.37
• Conan version: conan 1.18.0
• Python version: Python 3.7.4

Conan profile

Host profile:
[settings]
arch=x86_64
build_type=Release
compiler=msvc
compiler.cppstd=20
compiler.runtime=dynamic
compiler.runtime_type=Release
compiler.version=193
os=Windows

Build profile:
[settings]
arch=x86_64
build_type=Release
compiler=msvc
compiler.cppstd=20
compiler.runtime=dynamic
compiler.runtime_type=Release
compiler.version=193
os=Windows

Steps to reproduce

# Builds fine
conan install --require=doxygen/1.14.0 --build=doxygen/1.14.0 -s compiler.cppstd=17
# Fails
conan install --require=doxygen/1.14.0 --build=doxygen/1.14.0 -s compiler.cppstd=20

Logs

Click to expand log

PS C:\dev\infinity2> conan install --requires=doxygen/1.14.0 --build=doxygen/1.14.0 -s compiler.cppstd=20

======== Input profiles ========
Profile host:
[settings]
arch=x86_64
build_type=Release
compiler=msvc
compiler.cppstd=20
compiler.runtime=dynamic
compiler.runtime_type=Release
compiler.version=193
os=Windows

Profile build:
[settings]
arch=x86_64
build_type=Release
compiler=msvc
compiler.cppstd=20
compiler.runtime=dynamic
compiler.runtime_type=Release
compiler.version=193
os=Windows


======== Computing dependency graph ========
Graph root
    cli
Requirements
    doxygen/1.14.0#551a897ac9f3b56e212b7e88e2df9e8d - Cache
    libiconv/1.17#1e65319e945f2d31941a9d28cc13c058 - Cache
    xapian-core/1.4.19#f8de8e284f40b94b11dd6df4acc8321a - Cache
    zlib/1.3.1#b8bc2603263cf7eccbd6e17e66b0ed76 - Cache
Build requirements
    cmake/3.31.9#2032c6471fe4f5a3e17f65fed518d545 - Cache
    msys2/cci.latest#5b73b10144f73cc5bfe0572ed9be39e1 - Cache
    winflexbison/2.5.24#787ac49848394ad55d0e4b69271481a3 - Cache
Resolved version ranges
    cmake/[>=3.19 <4]: cmake/3.31.9
    zlib/[>=1.2.11 <2]: zlib/1.3.1

======== Computing necessary packages ========
Connecting to remote 'conancenter' anonymously
xapian-core/1.4.19: Main binary package 'c25d90d5ef57add0a6c210ebc7f8c1ee20278deb' missing
xapian-core/1.4.19: Checking 3 compatible configurations
xapian-core/1.4.19: Found compatible package '4830a4a014e77a3e2a475b833eca0c0750ad1041': compiler.cppstd=14
doxygen/1.14.0: Forced build from source
Requirements
    doxygen/1.14.0#551a897ac9f3b56e212b7e88e2df9e8d:cc79e9ad24c512e547c9bcecde64671cebf26a7a - Build
    libiconv/1.17#1e65319e945f2d31941a9d28cc13c058:7bfde258ff4f62f75668d0896dbddedaa7480a0f#a90c61140b9a8d580b7196c552426722 - Cache
    xapian-core/1.4.19#f8de8e284f40b94b11dd6df4acc8321a:4830a4a014e77a3e2a475b833eca0c0750ad1041#6bd0eba18ec47bdb4b096f382f799d7a - Cache
    zlib/1.3.1#b8bc2603263cf7eccbd6e17e66b0ed76:7bfde258ff4f62f75668d0896dbddedaa7480a0f#79ec8125ebd42591897da4cf270e6146 - Cache
Build requirements
    cmake/3.31.9#2032c6471fe4f5a3e17f65fed518d545:522dcea5982a3f8a5b624c16477e47195da2f84f#34288eae86ea322f4d5a6c0cc7299e47 - Cache
    winflexbison/2.5.24#787ac49848394ad55d0e4b69271481a3:723257509aee8a72faf021920c2874abc738e029#50a3027d20c63a7e789a897dccd9e503 - Cache
Skipped binaries
    msys2/cci.latest

======== Installing packages ========
cmake/3.31.9: Already installed! (1 of 6)
winflexbison/2.5.24: Already installed! (2 of 6)
winflexbison/2.5.24: Setting LEX environment variable: C:/Users/goali/.conan2/p/winfl70d0b0fa3fb69/p/bin/win_flex
winflexbison/2.5.24: Setting YACC environment variable: C:/Users/goali/.conan2/p/winfl70d0b0fa3fb69/p/bin/win_bison -y
zlib/1.3.1: Already installed! (3 of 6)
libiconv/1.17: Already installed! (4 of 6)
xapian-core/1.4.19: Already installed! (5 of 6)
xapian-core/1.4.19: WARN: deprecated: The use of 'unix_path_legacy_compat' is deprecated in Conan 2.0 and does not perform path conversions. This is retained for compatibility with Conan 1.x and will be removed in a future version.

-------- Installing package doxygen/1.14.0 (6 of 6) --------
doxygen/1.14.0: Building from source
doxygen/1.14.0: Package doxygen/1.14.0:cc79e9ad24c512e547c9bcecde64671cebf26a7a
doxygen/1.14.0: settings: os=Windows arch=x86_64 compiler=msvc compiler.cppstd=20 compiler.runtime=dynamic compiler.runtime_type=Release compiler.version=193 build_type=Release
doxygen/1.14.0: options: enable_app=False enable_parse=True enable_search=True
doxygen/1.14.0: requires: xapian-core/1.4.19#f8de8e284f40b94b11dd6df4acc8321a:4830a4a014e77a3e2a475b833eca0c0750ad1041 zlib/1.3.1#b8bc2603263cf7eccbd6e17e66b0ed76:7bfde258ff4f62f75668d0896dbddedaa7480a0f libiconv/1.17#1e65319e945f2d31941a9d28cc13c058:7bfde258ff4f62f75668d0896dbddedaa7480a0f
doxygen/1.14.0: Copying sources to build folder
doxygen/1.14.0: Building your package in C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b
doxygen/1.14.0: Calling generate()
doxygen/1.14.0: Generators folder: C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\generators
doxygen/1.14.0: CMakeToolchain generated: conan_toolchain.cmake
doxygen/1.14.0: CMakeToolchain generated: C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\generators\CMakePresets.json
doxygen/1.14.0: CMakeToolchain generated: C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\CMakeUserPresets.json
doxygen/1.14.0: CMakeDeps necessary find_package() and targets for your CMakeLists.txt
    find_package(xapian)
    find_package(ZLIB)
    find_package(Iconv)
    target_link_libraries(... xapian-core::xapian-core ZLIB::ZLIB Iconv::Iconv)
doxygen/1.14.0: Generating aggregated env files
doxygen/1.14.0: Generated aggregated env files: ['conanbuild.bat', 'conanrun.bat']
doxygen/1.14.0: Calling build()
doxygen/1.14.0: Running CMake.configure()
doxygen/1.14.0: RUN: cmake -G "Visual Studio 17 2022" -DCMAKE_TOOLCHAIN_FILE="generators/conan_toolchain.cmake" -DCMAKE_INSTALL_PREFIX="C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/p" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" "C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src"
-- Using Conan toolchain: C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/build/generators/conan_toolchain.cmake
-- Conan toolchain: CMAKE_GENERATOR_TOOLSET=v143
-- Conan toolchain: Setting CMAKE_MSVC_RUNTIME_LIBRARY=$<$<CONFIG:Release>:MultiThreadedDLL>
-- Conan toolchain: C++ Standard 20 with extensions OFF
-- Selecting Windows SDK version 10.0.22621.0 to target Windows 10.0.26100.
-- The C compiler identification is MSVC 19.37.32822.0
-- The CXX compiler identification is MSVC 19.37.32822.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.37.32822/bin/Hostx64/x64/cl.exe - 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: C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.37.32822/bin/Hostx64/x64/cl.exe - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Using Cmake version 3.31.9
-- Performing Test IS_CLANG_LIBCPP
-- Performing Test IS_CLANG_LIBCPP - Failed
-- Found Python: C:/Program Files/WindowsApps/PythonSoftwareFoundation.Python.3.11_3.11.2544.0_x64__qbz5n2kfra8p0/python3.11.exe (found version "3.11.9") found components: Interpreter
-- Found FLEX: C:/Users/goali/.conan2/p/winfl70d0b0fa3fb69/p/bin/win_flex.exe (found version "2.6.4")
-- Found BISON: C:/Users/goali/.conan2/p/winfl70d0b0fa3fb69/p/bin/win_bison.exe (found version "3.7.4")
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - not found
-- Found Threads: TRUE
-- Conan: Target declared 'Iconv::Iconv'
CMake Warning (dev) at cmake/WindowsEncoding.cmake:2 (include):
  Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
  are removed.  Run "cmake --help-policy CMP0148" for policy details.  Use
  the cmake_policy command to set the policy and suppress this warning.

Call Stack (most recent call first):
  CMakeLists.txt:299 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- Found PythonInterp: C:/Python311/python.exe (found version "3.11.5")
-- CodePage is 1252

-- Build spdlog: 1.14.1
-- Build type: 
-- The javacc executable not found, using existing files
-- The generateDS executable not found, using existing files
-- Conan: Target declared 'xapian-core::xapian-core'
-- Conan: Target declared 'ZLIB::ZLIB'
-- Conan: Including build module from 'C:/Users/goali/.conan2/p/xapiab284ff9fc5d22/p/lib/cmake/conan-official-xapian-core-variables.cmake'
-- Configuring done (13.5s)
-- Generating done (0.6s)
-- Build files have been written to: C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/build

doxygen/1.14.0: Running CMake.build()
doxygen/1.14.0: RUN: cmake --build "C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build" --config Release
MSBuild version 17.7.2+d6990bcfa for .NET Framework

  Checking File Globs
  1>Checking Build System
  Checking the doxygen version for changes...
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/libversion/CMakeLists.txt
  Checking the git repository for changes...
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/libversion/CMakeLists.txt
  Generating ../generated_src/configvalues.h
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/src/CMakeLists.txt
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/deps/spdlog/CMakeLists.txt
  spdlog.cpp
  stdout_sinks.cpp
  color_sinks.cpp
  file_sinks.cpp
  async.cpp
  cfg.cpp
  bundled_fmtlib_format.cpp
  spdlog.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\lib\Release\spdlog.lib
  Generating ../generated_src/configimpl.l, ../generated_src/configimpl.corr, ../generated_src/configimpl.d
  Generating ../generated_src/configoptions.cpp
  Generating ../generated_src/configvalues.cpp
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/src/CMakeLists.txt
  [FLEX][configimpl] Building scanner with win_flex 2.6.4
  Generating ../generated_src/configimpl.l.h
  Generating ../generated_src/configimpl.cpp
  configimpl.cpp
  configoptions.cpp
  configvalues.cpp
  portable.cpp
  message.cpp
  debug.cpp
  trace.cpp
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\message.cpp(50,40): warning C4267: 'argument': conversion from 'size_t' to 'unsigned int', possible loss of da
ta [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxycfg.vcxproj]
  portable_c.c
  doxycfg.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\lib\Release\doxycfg.lib
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/libversion/CMakeLists.txt
  doxyversion.cpp
  gitversion.cpp
  fullversion.cpp
  doxygen_version.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\lib\Release\doxygen_version.lib
  Generating ../generated_src/code.l, ../generated_src/code.corr, ../generated_src/code.d
  Generating ../generated_src/commentcnv.l, ../generated_src/commentcnv.corr, ../generated_src/commentcnv.d
  Generating ../generated_src/commentscan.l, ../generated_src/commentscan.corr, ../generated_src/commentscan.d
  Generating ../generated_src/constexp.l, ../generated_src/constexp.corr, ../generated_src/constexp.d
  Generating ../generated_src/declinfo.l, ../generated_src/declinfo.corr, ../generated_src/declinfo.d
  Generating ../generated_src/defargs.l, ../generated_src/defargs.corr, ../generated_src/defargs.d
  Generating ../generated_src/doctokenizer.l, ../generated_src/doctokenizer.corr, ../generated_src/doctokenizer.d
  Generating ../generated_src/fortrancode.l, ../generated_src/fortrancode.corr, ../generated_src/fortrancode.d
  Generating ../generated_src/fortranscanner.l, ../generated_src/fortranscanner.corr, ../generated_src/fortranscanner.d
  Generating ../generated_src/lexcode.l, ../generated_src/lexcode.corr, ../generated_src/lexcode.d
  Generating ../generated_src/lexscanner.l, ../generated_src/lexscanner.corr, ../generated_src/lexscanner.d
  Generating ../generated_src/pre.l, ../generated_src/pre.corr, ../generated_src/pre.d
  Generating ../generated_src/pycode.l, ../generated_src/pycode.corr, ../generated_src/pycode.d
  Generating ../generated_src/pyscanner.l, ../generated_src/pyscanner.corr, ../generated_src/pyscanner.d
  Generating ../generated_src/scanner.l, ../generated_src/scanner.corr, ../generated_src/scanner.d
  Generating ../generated_src/sqlcode.l, ../generated_src/sqlcode.corr, ../generated_src/sqlcode.d
  Generating ../generated_src/vhdlcode.l, ../generated_src/vhdlcode.corr, ../generated_src/vhdlcode.d
  Generating ../generated_src/xmlcode.l, ../generated_src/xmlcode.corr, ../generated_src/xmlcode.d
  [BISON][constexp] Building parser with bison 3.7.4
  Generating ../generated_src/ce_parse.h
  Generating C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/build/generated_src/resources.cpp
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/src/CMakeLists.txt
  Generating ../generated_src/code.l.h
  [FLEX][code] Building scanner with win_flex 2.6.4
  Generating ../generated_src/commentcnv.l.h
  [FLEX][commentcnv] Building scanner with win_flex 2.6.4
  Generating ../generated_src/commentscan.l.h
  [FLEX][commentscan] Building scanner with win_flex 2.6.4
  Generating ../generated_src/constexp.l.h
  [FLEX][constexp] Building scanner with win_flex 2.6.4
  Generating ../generated_src/declinfo.l.h
  [FLEX][declinfo] Building scanner with win_flex 2.6.4
  Generating ../generated_src/defargs.l.h
  [FLEX][defargs] Building scanner with win_flex 2.6.4
  Generating ../generated_src/doctokenizer.l.h
  [FLEX][doctokenizer] Building scanner with win_flex 2.6.4
  Generating ../generated_src/fortrancode.l.h
  [FLEX][fortrancode] Building scanner with win_flex 2.6.4
  Generating ../generated_src/fortranscanner.l.h
  [FLEX][fortranscanner] Building scanner with win_flex 2.6.4
  Generating ../generated_src/lexcode.l.h
  [FLEX][lexcode] Building scanner with win_flex 2.6.4
  Generating ../generated_src/lexscanner.l.h
  [FLEX][lexscanner] Building scanner with win_flex 2.6.4
  Generating ../generated_src/pre.l.h
  [FLEX][pre] Building scanner with win_flex 2.6.4
  Generating ../generated_src/pycode.l.h
  [FLEX][pycode] Building scanner with win_flex 2.6.4
  Generating ../generated_src/pyscanner.l.h
  [FLEX][pyscanner] Building scanner with win_flex 2.6.4
  Generating ../generated_src/scanner.l.h
  [FLEX][scanner] Building scanner with win_flex 2.6.4
  Generating ../generated_src/sqlcode.l.h
  [FLEX][sqlcode] Building scanner with win_flex 2.6.4
  Generating ../generated_src/vhdlcode.l.h
  [FLEX][vhdlcode] Building scanner with win_flex 2.6.4
  Generating ../generated_src/xmlcode.l.h
  [FLEX][xmlcode] Building scanner with win_flex 2.6.4
  Generating ../generated_src/code.cpp
  Generating ../generated_src/commentcnv.cpp
  Generating ../generated_src/commentscan.cpp
  Generating ../generated_src/constexp.cpp
  Generating ../generated_src/declinfo.cpp
  Generating ../generated_src/defargs.cpp
  Generating ../generated_src/doctokenizer.cpp
  Generating ../generated_src/fortrancode.cpp
  Generating ../generated_src/fortranscanner.cpp
  Generating ../generated_src/lexcode.cpp
  Generating ../generated_src/lexscanner.cpp
  Generating ../generated_src/pre.cpp
  Generating ../generated_src/pycode.cpp
  Generating ../generated_src/pyscanner.cpp
  Generating ../generated_src/scanner.cpp
  Generating ../generated_src/sqlcode.cpp
  Generating ../generated_src/vhdlcode.cpp
  Generating ../generated_src/xmlcode.cpp
  code.cpp
  commentcnv.cpp
  commentscan.cpp
  constexp.cpp
  declinfo.cpp
  defargs.cpp
  doctokenizer.cpp
  fortrancode.cpp
  fortranscanner.cpp
  lexcode.cpp
  lexscanner.cpp
  pre.cpp
  pycode.cpp
  pyscanner.cpp
  scanner.cpp
  sqlcode.cpp
  vhdlcode.cpp
C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/src/commentcnv.l(1511,35): warning C4267: '+=': conversion from 'size_t' to 'int', possible loss of data (compilin
g source file C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\generated_src\commentcnv.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.
vcxproj]
C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/src/commentcnv.l(1736,21): warning C4267: '+=': conversion from 'size_t' to 'int', possible loss of data (compilin
g source file C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\generated_src\commentcnv.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.
vcxproj]
  xmlcode.cpp
  ce_parse.cpp
  resources.cpp
  aliases.cpp
  anchor.cpp
  arguments.cpp
  cite.cpp
  clangparser.cpp
  classdef.cpp
  classlist.cpp
  cmdmapper.cpp
  codefragment.cpp
  conceptdef.cpp
  condparser.cpp
  cppvalue.cpp
  datetime.cpp
  defgen.cpp
  definition.cpp
  dia.cpp
  diagram.cpp
  dir.cpp
  dirdef.cpp
  docbookgen.cpp
  docbookvisitor.cpp
  docgroup.cpp
  docnode.cpp
  docparser.cpp
  docsets.cpp
  docvisitor.cpp
  dot.cpp
  dotcallgraph.cpp
  dotclassgraph.cpp
  dotdirdeps.cpp
  dotfilepatcher.cpp
  dotgfxhierarchytable.cpp
  dotgraph.cpp
  dotgroupcollaboration.cpp
  dotincldepgraph.cpp
  dotlegendgraph.cpp
  dotnode.cpp
  dotrunner.cpp
  doxygen.cpp
  eclipsehelp.cpp
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(438,41): error C2039: 'result_of': is not a member of 'std' (compiling source file C:\U
sers\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Tools\MSVC\14.37.32822\include\iterator(21,1): message : see declaration of 'std' (compiling source file C:
\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(438,65): message : see reference to class template instantiation 'gunzip_ns::result_of<
F(Args...)>' being compiled (compiling source file C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c5946
33\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(438,41): error C2955: 'gunzip_ns::result_of': use of class template requires template a
rgument list (compiling source file C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\
doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(429,5): message : see declaration of 'gunzip_ns::result_of' (compiling source file C:\U 
sers\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(438,50): error C2143: syntax error: missing ',' before '<' (compiling source file C:\Us 
ers\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
  emoji.cpp
  entry.cpp
  filedef.cpp
  fileinfo.cpp
  fileparser.cpp
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(438,50): error C2059: syntax error: '<' (compiling source file C:\Users\goali\.conan2\p
\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(454,5): message : see reference to class template instantiation 'gunzip_ns::result_of<D 
otRunner::readBoundingBox::<lambda_4> (void)>' being compiled (compiling source file C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Users\ 
goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(453,31): message : see reference to alias template instantiation 'gunzip_ns::result_of_
t<DotRunner::readBoundingBox::<lambda_4>(void)>' being compiled (compiling source file C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\User
s\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(1407,27): message : see reference to variable template 'const bool is_input_functor_v<`
DotRunner::readBoundingBox'::`19'::<lambda_4> &>' being compiled (compiling source file C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Use
rs\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(1427,23): message : see reference to function template instantiation 'auto gunzip_ns::D
eflateInputDispatch<0,gunzip_ns::dummy,DotRunner::readBoundingBox::<lambda_4>&,DotRunner::readBoundingBox::<lambda_5>&,>(BtFun &&,T1,T2)' being compiled [C:\Users\goa
li\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
          with
          [
              BtFun=gunzip_ns::dummy,
              T1=DotRunner::readBoundingBox::<lambda_4> &,
              T2=DotRunner::readBoundingBox::<lambda_5> &
          ] (compiling source file C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp)
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp(220,11): message : see reference to function template instantiation 'auto Deflate<DotRunner::rea 
dBoundingBox::<lambda_4>&,DotRunner::readBoundingBox::<lambda_5>&>(DotRunner::readBoundingBox::<lambda_4> &,DotRunner::readBoundingBox::<lambda_5> &)' being compiled  
[C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\src\doxymain.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\deps\TinyDeflate\gunzip.hh(1417,31): error C2338: static_assert failed: 'Deflate: Mismatched parameters. Expected  
something for an input.' (compiling source file C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\src\dotrunner.cpp) [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\ 
b\build\src\doxymain.vcxproj]
  formula.cpp
  ftvhelp.cpp
  groupdef.cpp
  htags.cpp
  htmldocvisitor.cpp
  htmlentity.cpp
  htmlgen.cpp
  htmlhelp.cpp
  image.cpp
  index.cpp
  language.cpp
  latexdocvisitor.cpp
  latexgen.cpp
  layout.cpp
  mandocvisitor.cpp
  mangen.cpp
  markdown.cpp
  memberdef.cpp
  membergroup.cpp
  memberlist.cpp
  moduledef.cpp
  msc.cpp
  namespacedef.cpp
  outputgen.cpp
  outputlist.cpp
  pagedef.cpp
  perlmodgen.cpp
  plantuml.cpp
  qcstring.cpp
  qhp.cpp
  reflist.cpp
  regex.cpp
  resourcemgr.cpp
  rtfdocvisitor.cpp
  rtfgen.cpp
  rtfstyle.cpp
  searchindex.cpp
  searchindex_js.cpp
  singlecomment.cpp
  sitemap.cpp
  sqlite3gen.cpp
  stlsupport.cpp
  symbolresolver.cpp
  tagreader.cpp
  textdocvisitor.cpp
  tooltip.cpp
  utf8.cpp
  util.cpp
  vhdldocgen.cpp
  vhdljjparser.cpp
  xmldocvisitor.cpp
  xmlgen.cpp
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/deps/liblodepng/CMakeLists.txt
  lodepng.cpp
  lodepng.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\lib\Release\lodepng.lib
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/deps/libmd5/CMakeLists.txt
  md5.c
  md5.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\lib\Release\md5.lib
  [BISON][mscgen_language] Building parser with bison 3.7.4
  [FLEX][mscgen_lexer] Building scanner with win_flex 2.6.4
  Generating ../../generated_src/mscgen_lexer.l.h
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/deps/libmscgen/CMakeLists.txt
  gd.c
  gd_security.c
  gdfontt.c
  gdtables.c
  gd_color.c
  gdfonts.c
  gdhelpers.c
  gd_lodepng.c
  mscgen_adraw.c
  mscgen_gd_out.c
  mscgen_ps_out.c
  mscgen_null_out.c
  mscgen_api.c
  mscgen_msc.c
  mscgen_safe.c
  mscgen_svg_out.c
  mscgen_usage.c
  mscgen_utf8.c
  mscgen_language.cpp
  mscgen_lexer.cpp
  mscgen.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\lib\Release\mscgen.lib
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/deps/sqlite3/CMakeLists.txt
  sqlite3.c
  sqlite3.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\lib\Release\sqlite3.lib
  Generating ../generated_src/VhdlParser_adj.cc
  Generating ../generated_src/VhdlParserTokenManager_adj.cc
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/vhdlparser/CMakeLists.txt
  CharStream.cc
  ParseException.cc
  Token.cc
  TokenMgrError.cc
  VhdlParser_adj.cc
  VhdlParserTokenManager_adj.cc
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\vhdlparser\Token.cc(82,5): warning C4065: switch statement contains 'default' but no 'case' labels [C:\Users\goali
\.conan2\p\b\doxyg1f0cc0c594633\b\build\vhdlparser\vhdlparser.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\vhdlparser\CharStream.cc(165,23): warning C4267: '+=': conversion from 'size_t' to 'int', possible loss of data [C
:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\vhdlparser\vhdlparser.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\src\vhdlparser\TokenMgrError.cc(106,31): warning C4333: '>>': right shift by too large amount, data loss [C:\Users\goa
li\.conan2\p\b\doxyg1f0cc0c594633\b\build\vhdlparser\vhdlparser.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\generated_src\VhdlParserTokenManager_adj.cc(3279,32): warning C4333: '>>': right shift by too large amount, data
 loss [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\vhdlparser\vhdlparser.vcxproj]
C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\generated_src\VhdlParserTokenManager_adj.cc(3678,55): warning C4267: '=': conversion from 'size_t' to 'int', pos 
sible loss of data [C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\vhdlparser\vhdlparser.vcxproj]
  vhdlparser.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\lib\Release\vhdlparser.lib
  [FLEX][xml] Building scanner with win_flex 2.6.4
  Generating ../generated_src/xml.l.h
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/libxml/CMakeLists.txt
  xml.cpp
  xml.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\lib\Release\xml.lib
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/addon/doxysearch/CMakeLists.txt
  doxyindexer.cpp
  doxyindexer.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\bin\doxyindexer.exe
  Building Custom Rule C:/Users/goali/.conan2/p/b/doxyg1f0cc0c594633/b/src/addon/doxysearch/CMakeLists.txt
  doxysearch.cpp
  doxysearch.cgi.vcxproj -> C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build\bin\doxysearch.cgi.exe

doxygen/1.14.0: ERROR: 
Package 'cc79e9ad24c512e547c9bcecde64671cebf26a7a' build failed
doxygen/1.14.0: WARN: Build folder C:\Users\goali\.conan2\p\b\doxyg1f0cc0c594633\b\build
ERROR: doxygen/1.14.0: Error in build() method, line 94
        cmake.build()
        ConanException: Error 1 while executing

[uilianries]

@Khrysys Hello! Thank you for reporting your error!

Your case has been reported in the upstream already: doxygen/doxygen#10928

Unfortunately, we don't have a new release yet with that fix. But I can find other problems fixed already that are related to C++20 in Doxygen: https://github.com/search?q=repo%3Adoxygen%2Fdoxygen+C%2B%2B20&type=pullrequests

I would recommend using -s compiler.cppstd=17 for now until a new release of Doxygen is available; otherwise, we would need to include several patches to make it work, which is not doable due to the maintenance and complexity.

Please, feel free to share your thoughts.

[Khrysys]

Ah, I was hopeful to use Conan to manage everything. Reality of C++ I suppose. Perhaps something like tool_requires with a cppstd of 14 or 17, and then build with C++20. It's not a super well documented feature, but is that the proper way to use tool_requires?

[uilianries]

Ah, I was hopeful to use Conan to manage everything. Reality of C++ I suppose. Perhaps something like tool_requires with a cppstd of 14 or 17, and then build with C++20

Could you please elaborate your scenario a little? I can't understand the origin of your problem, whether you are trying to use Doxygen directly, or it's a transitive dependency that's blocking you.

Still, there are a fill ways to solve your situation:

• You can use system Doxygen (in case installed) instead of using Conan's: https://docs.conan.io/2/reference/config_files/profiles.html#platform-tool-requires

• You can build Doxygen with C++17 and mark to use it with other packages:

  conan install --requires="<pkg/version>" -s:b "doxygen/*:compiler.cppstd=17"

Another case would be updating the Doxygen recipe to only restrict the cppstd when building it, but first, I would need to understand your case.

It's not a super well documented feature, but is that the proper way to use tool_requires?

The tool_requires is well documented in Conan docs, for instance, in build_requirements section. You can find several references in Conan docs by just searching tool requires.

If there is a specific topic that is not clear, you can still open an issue asking for improvement. Or ask here to be discussed.

Regards.

[jcar87]

Should be fixed with the new version as per: #28712

You can do --build=compatible, rather than --build=missing, it will try a compatible package if your cppstd does not match (for tool_requires that are executables, the cppstd used to build should not have much consequence)