Compilation error

[cc74540]

Hi, I try to compile your code in ubuntu 24 but I have an error :
/home/cc/SuperTimecodeConverter/AppSettings.h:248:45: error: conversion from ‘juce::var’ to ‘int64_t’ {aka ‘long int’} is ambiguous
248 | if (!idVal.isVoid() && (int64_t)idVal != 0)

[ 4%] Generating SuperTimecodeConverter_artefacts/JuceLibraryCode/JuceHeader.h [ 18%] Building C object CMakeFiles/SuperTimecodeConverter.dir/sqlite3.c.o [ 18%] Building CXX object CMakeFiles/SuperTimecodeConverter.dir/MainComponent.cpp.o [ 18%] Building CXX object CMakeFiles/SuperTimecodeConverter.dir/Main.cpp.o [ 22%] Building CXX object CMakeFiles/SuperTimecodeConverter.dir/home/cc/JUCE/modules/juce_core/juce_core.cpp.o [ 27%] Building CXX object CMakeFiles/SuperTimecodeConverter.dir/home/cc/JUCE/modules/juce_audio_basics/juce_audio_basics.cpp.o [ 31%] Building CXX object CMakeFiles/SuperTimecodeConverter.dir/home/cc/JUCE/modules/juce_core/juce_core_CompilationTime.cpp.o [ 36%] Building CXX object CMakeFiles/SuperTimecodeConverter.dir/home/cc/JUCE/modules/juce_audio_devices/juce_audio_devices.cpp.o [ 40%] Building CXX object CMakeFiles/SuperTimecodeConverter.dir/home/cc/JUCE/modules/juce_events/juce_events.cpp.o [ 45%] Building CXX object CMakeFiles/SuperTimecodeConverter.dir/home/cc/JUCE/modules/juce_audio_formats/juce_audio_formats.cpp.o In file included from /home/cc/SuperTimecodeConverter/DbServerClient.h:33, from /home/cc/SuperTimecodeConverter/TimecodeEngine.h:18, from /home/cc/SuperTimecodeConverter/MainComponent.h:9, from /home/cc/SuperTimecodeConverter/MainComponent.cpp:5: /home/cc/SuperTimecodeConverter/AppSettings.h: In member function ‘void TrackMapEntry::fromVar(const juce::var&)’: /home/cc/SuperTimecodeConverter/AppSettings.h:248:45: error: conversion from ‘juce::var’ to ‘int64_t’ {aka ‘long int’} is ambiguous 248 | if (!idVal.isVoid() && (int64_t)idVal != 0) | ^~~~~ In file included from /home/cc/JUCE/modules/juce_core/juce_core.h:303, from /home/cc/JUCE/modules/juce_audio_basics/juce_audio_basics.h:66, from /home/cc/SuperTimecodeConverter/build/SuperTimecodeConverter_artefacts/JuceLibraryCode/JuceHeader.h:14, from /home/cc/SuperTimecodeConverter/MainComponent.h:6: /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:119:5: note: candidate: ‘juce::var::operator int() const’ 119 | operator int() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:120:5: note: candidate: ‘juce::var::operator juce::int64() const’ 120 | operator int64() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:121:5: note: candidate: ‘juce::var::operator bool() const’ 121 | operator bool() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:122:5: note: candidate: ‘juce::var::operator float() const’ 122 | operator float() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:123:5: note: candidate: ‘juce::var::operator double() const’ 123 | operator double() const noexcept; | ^~~~~~~~ **/home/cc/SuperTimecodeConverter/AppSettings.h:249:59: error: conversion from ‘juce::var’ to ‘int64_t’ {aka ‘long int’} is ambiguous 249 | title = "Track #" + juce::String((int64_t)idVal);** | ^~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:119:5: note: candidate: ‘juce::var::operator int() const’ 119 | operator int() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:120:5: note: candidate: ‘juce::var::operator juce::int64() const’ 120 | operator int64() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:121:5: note: candidate: ‘juce::var::operator bool() const’ 121 | operator bool() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:122:5: note: candidate: ‘juce::var::operator float() const’ 122 | operator float() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:123:5: note: candidate: ‘juce::var::operator double() const’ 123 | operator double() const noexcept; | ^~~~~~~~ In file included from /home/cc/SuperTimecodeConverter/DbServerClient.h:33, from /home/cc/SuperTimecodeConverter/TimecodeEngine.h:18, from /home/cc/SuperTimecodeConverter/MainComponent.h:9, from /home/cc/SuperTimecodeConverter/Main.cpp:6: /home/cc/SuperTimecodeConverter/AppSettings.h: In member function ‘void TrackMapEntry::fromVar(const juce::var&)’: **/home/cc/SuperTimecodeConverter/AppSettings.h:248:45: error: conversion from ‘juce::var’ to ‘int64_t’ {aka ‘long int’} is ambiguous 248 | if (!idVal.isVoid() && (int64_t)idVal != 0)** | ^~~~~ In file included from /home/cc/JUCE/modules/juce_core/juce_core.h:303, from /home/cc/JUCE/modules/juce_audio_basics/juce_audio_basics.h:66, from /home/cc/SuperTimecodeConverter/build/SuperTimecodeConverter_artefacts/JuceLibraryCode/JuceHeader.h:14, from /home/cc/SuperTimecodeConverter/Main.cpp:5: /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:119:5: note: candidate: ‘juce::var::operator int() const’ 119 | operator int() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:120:5: note: candidate: ‘juce::var::operator juce::int64() const’ 120 | operator int64() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:121:5: note: candidate: ‘juce::var::operator bool() const’ 121 | operator bool() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:122:5: note: candidate: ‘juce::var::operator float() const’ 122 | operator float() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:123:5: note: candidate: ‘juce::var::operator double() const’ 123 | operator double() const noexcept; | ^~~~~~~~ /home/cc/SuperTimecodeConverter/AppSettings.h:249:59: error: conversion from ‘juce::var’ to ‘int64_t’ {aka ‘long int’} is ambiguous 249 | title = "Track #" + juce::String((int64_t)idVal); | ^~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:119:5: note: candidate: ‘juce::var::operator int() const’ 119 | operator int() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:120:5: note: candidate: ‘juce::var::operator juce::int64() const’ 120 | operator int64() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:121:5: note: candidate: ‘juce::var::operator bool() const’ 121 | operator bool() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:122:5: note: candidate: ‘juce::var::operator float() const’ 122 | operator float() const noexcept; | ^~~~~~~~ /home/cc/JUCE/modules/juce_core/containers/juce_Variant.h:123:5: note: candidate: ‘juce::var::operator double() const’ 123 | operator double() const noexcept; | ^~~~~~~~ [ 50%] Building CXX object CMakeFiles/SuperTimecodeConverter.dir/home/cc/JUCE/modules/juce_audio_utils/juce_audio_utils.cpp.o gmake[2]: *** [CMakeFiles/SuperTimecodeConverter.dir/build.make:80 : CMakeFiles/SuperTimecodeConverter.dir/Main.cpp.o] Erreur 1 gmake[2]: *** Attente des tâches non terminées.... gmake[2]: *** [CMakeFiles/SuperTimecodeConverter.dir/build.make:94 : CMakeFiles/SuperTimecodeConverter.dir/MainComponent.cpp.o] Erreur 1 gmake[1]: *** [CMakeFiles/Makefile2:148 : CMakeFiles/SuperTimecodeConverter.dir/all] Erreur 2 gmake: *** [Makefile:136 : all] Erreur 2

[fiverecords]

Thanks for reporting this! The issue is that on Linux/GCC, int64_t is long while JUCE defines juce::int64 as long long — so the cast from juce::var becomes ambiguous because GCC can't decide which conversion operator to use.

Fixed in commit [40fac5f] — changed (int64_t)idVal to (juce::int64)idVal in AppSettings.h lines 248-249. This resolves the ambiguity on all platforms (Windows, macOS, and Linux).

Could you pull and try again? Let me know if you hit any other issues building on Ubuntu 24.

[cc74540]

I don't have this error now but I have some undefined references :

MainComponent.cpp:(.text+0x5812) : référence indéfinie vers « btt_set_gaussian_tempo_histogram_decay » /usr/bin/ld : CMakeFiles/SuperTimecodeConverter.dir/MainComponent.cpp.o : dans la fonction « MainComponent::restartAllAudioDevices() » : MainComponent.cpp:(.text+0x1221c) : référence indéfinie vers « btt_destroy »
I need to add curl in target_link_libraries in CMakeLists to remove some undefined references to curl functions

[fiverecords]

Good progress! Both issues are in your CMakeLists.txt:

1. BTT (beat tracking) — undefined btt_destroy, btt_set_gaussian_tempo_histogram_decay, etc.

Make sure btt_build.cpp is included in your source files. It's a C amalgamation build that compiles the beat tracking library. It needs to be compiled as C, not C++:

add_library(btt STATIC btt_build.cpp)
target_include_directories(btt PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
set_source_files_properties(btt_build.cpp PROPERTIES LANGUAGE C)

Then link it to the main target:

target_link_libraries(SuperTimecodeConverter PRIVATE btt)

2. curl — undefined references to curl functions

Used by UpdateChecker.h for GitHub release checking. On Ubuntu:

sudo apt install libcurl4-openssl-dev

Then add to CMakeLists:

find_package(CURL REQUIRED)
target_link_libraries(SuperTimecodeConverter PRIVATE CURL::libcurl)

Note: We don't maintain a CMakeLists.txt — the primary build system is Visual Studio 2022 on Windows. The project files are just the raw sources + a .jucer file. If you get it building reliably on Linux, feel free to submit a PR with your CMakeLists.txt!

[cc74540]

Compilation is OK, I will try stagelinq as soon as I can