Linker issues when installing Dear ImGui using vcpkg

[MacQuant]

I have installed Dear ImGui using vcpkg by running the below command:

vcpkg install imgui[core,dx12-binding,win32-binding]:x64-windows

However I am getting the below many link errors that I don’t understand when building this:

#include <imgui.h>
int main(int argc, char* argv[])
{
    IMGUI_CHECKVERSION();
}

Errors:

1>LINK : warning LNK4098: defaultlib 'MSVCRTD' conflicts with use of other libs; use /NODEFAULTLIB:library
1>LINK : warning LNK4217: symbol 'strncmp' defined in 'libucrtd.lib(strncmp.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"void __cdecl ImGui::DockSettingsHandler_ReadLine(struct ImGuiContext *,struct ImGuiSettingsHandler *,void *,char const *)" (?DockSettingsHandler_ReadLine@ImGui@@YAXPEAUImGuiContext@@PEAUImGuiSettingsHandler@@PEAXPEBD@Z)'
1>LINK : warning LNK4286: symbol 'strncmp' defined in 'libucrtd.lib(strncmp.obj)' is imported by 'imguid.lib(imgui_widgets.cpp.obj)'
1>LINK : warning LNK4217: symbol 'strncpy' defined in 'libucrtd.lib(strncpy.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"void __cdecl ImStrncpy(char *,char const *,unsigned __int64)" (?ImStrncpy@@YAXPEADPEBD_K@Z)'
1>LINK : warning LNK4217: symbol '_wassert' defined in 'libucrtd.lib(assert.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"struct ImGuiIO & __cdecl ImGui::GetIO(void)" (?GetIO@ImGui@@YAAEAUImGuiIO@@xz)'
1>LINK : warning LNK4286: symbol '_wassert' defined in 'libucrtd.lib(assert.obj)' is imported by 'imguid.lib(imgui_draw.cpp.obj)'
1>LINK : warning LNK4286: symbol '_wassert' defined in 'libucrtd.lib(assert.obj)' is imported by 'imguid.lib(imgui_widgets.cpp.obj)'
1>LINK : warning LNK4286: symbol '_wassert' defined in 'libucrtd.lib(assert.obj)' is imported by 'imguid.lib(imgui_tables.cpp.obj)'
1>LINK : warning LNK4217: symbol '__acrt_iob_func' defined in 'libucrtd.lib(_file.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"void __cdecl ImGui::LogToTTY(int)" (?LogToTTY@ImGui@@Yaxh@Z)'
1>LINK : warning LNK4217: symbol 'fclose' defined in 'libucrtd.lib(fclose.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"bool __cdecl ImFileClose(struct _iobuf *)" (?ImFileClose@@YA_NPEAU_iobuf@@@z)'
1>LINK : warning LNK4217: symbol 'fflush' defined in 'libucrtd.lib(fflush.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"void __cdecl ImGui::LogFinish(void)" (?LogFinish@ImGui@@YAXXZ)'
1>LINK : warning LNK4217: symbol 'fwrite' defined in 'libucrtd.lib(fwrite.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"unsigned __int64 __cdecl ImFileWrite(void const *,unsigned __int64,unsigned __int64,struct _iobuf *)" (?ImFileWrite@@YA_KPEBX_K1PEAU_iobuf@@@z)'
1>LINK : warning LNK4217: symbol '__stdio_common_vfprintf' defined in 'libucrtd.lib(output.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '_vfprintf_l'
1>LINK : warning LNK4217: symbol '__stdio_common_vsprintf' defined in 'libucrtd.lib(output.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '_vsnprintf_l'
1>LINK : warning LNK4217: symbol 'free' defined in 'libucrtd.lib(free.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"void __cdecl ImGui::UpdateViewportPlatformMonitor(struct ImGuiViewportP *)" (?UpdateViewportPlatformMonitor@ImGui@@YAXPEAUImGuiViewportP@@@z)'
1>LINK : warning LNK4217: symbol 'malloc' defined in 'libucrtd.lib(malloc.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"void __cdecl ImGui::UpdateViewportPlatformMonitor(struct ImGuiViewportP *)" (?UpdateViewportPlatformMonitor@ImGui@@YAXPEAUImGuiViewportP@@@z)'
1>LINK : warning LNK4217: symbol 'qsort' defined in 'libucrtd.lib(qsort.obj)' is imported by 'imguid.lib(imgui.cpp.obj)' in function '"void __cdecl ImQsort(void ,unsigned __int64,unsigned __int64,int (__cdecl)(void const *,void const *))" (?ImQsort@@YAXPEAX_K1P6AHPEBX2@Z@Z)'
1>LINK : warning LNK4286: symbol 'qsort' defined in 'libucrtd.lib(qsort.obj)' is imported by 'imguid.lib(imgui_draw.cpp.obj)'
1>LINK : warning LNK4217: symbol 'qsort' defined in 'libucrtd.lib(qsort.obj)' is imported by 'imguid.lib(imgui_widgets.cpp.obj)' in function '"float __cdecl ImGui::RoundScalarWithFormatT(char const *,int,float)" (??$RoundScalarWithFormatT@M@ImGui@@YAMPEBDHM@Z)'
1>LINK : warning LNK4217: symbol 'ceilf' defined in 'libucrtd.lib(ceilf.obj)' is imported by 'imguid.lib(imgui_draw.cpp.obj)' in function '"public: void __cdecl ImDrawList::PathArcTo(struct ImVec2 const &,float,float,float,int)" (?PathArcTo@ImDrawList@@QEAAXAEBUImVec2@@mmmh@Z)'
1>imguid.lib(imgui.cpp.obj) : error LNK2019: unresolved external symbol __imp__wfopen referenced in function "struct _iobuf * __cdecl ImFileOpen(char const *,char const *)" (?ImFileOpen@@YAPEAU_iobuf@@PEBD0@Z)
1>imguid.lib(imgui.cpp.obj) : error LNK2019: unresolved external symbol __imp_fread referenced in function "unsigned __int64 __cdecl ImFileRead(void *,unsigned __int64,unsigned __int64,struct _iobuf *)" (?ImFileRead@@YA_KPEAX_K1PEAU_iobuf@@@z)
1>imguid.lib(imgui.cpp.obj) : error LNK2019: unresolved external symbol __imp_fseek referenced in function "unsigned __int64 __cdecl ImFileGetSize(struct _iobuf *)" (?ImFileGetSize@@YA_KPEAU_iobuf@@@z)
1>imguid.lib(imgui.cpp.obj) : error LNK2019: unresolved external symbol __imp_ftell referenced in function "unsigned __int64 __cdecl ImFileGetSize(struct _iobuf *)" (?ImFileGetSize@@YA_KPEAU_iobuf@@@z)
1>imguid.lib(imgui.cpp.obj) : error LNK2019: unresolved external symbol __imp___stdio_common_vsscanf referenced in function _vsscanf_l
1>imguid.lib(imgui_widgets.cpp.obj) : error LNK2001: unresolved external symbol __imp___stdio_common_vsscanf
1>imguid.lib(imgui_tables.cpp.obj) : error LNK2001: unresolved external symbol __imp___stdio_common_vsscanf
1>imguid.lib(imgui.cpp.obj) : error LNK2019: unresolved external symbol __imp_fmodf referenced in function "void __cdecl ImGui::ShowStackToolWindow(bool *)" (?ShowStackToolWindow@ImGui@@YAXPEA_N@Z)
1>imguid.lib(imgui_widgets.cpp.obj) : error LNK2001: unresolved external symbol __imp_fmodf
1>imguid.lib(imgui.cpp.obj) : error LNK2019: unresolved external symbol __imp_sqrtf referenced in function "void __cdecl ImGui::DebugNodeFont(struct ImFont *)" (?DebugNodeFont@ImGui@@YAXPEAUImFont@@@z)
1>imguid.lib(imgui_draw.cpp.obj) : error LNK2001: unresolved external symbol __imp_sqrtf
1>imguid.lib(imgui.cpp.obj) : error LNK2019: unresolved external symbol __imp_toupper referenced in function "int __cdecl ImStricmp(char const *,char const *)" (?ImStricmp@@YAHPEBD0@Z)
1>imguid.lib(imgui_draw.cpp.obj) : error LNK2019: unresolved external symbol __imp_acosf referenced in function "public: int __cdecl ImDrawList::_CalcCircleAutoSegmentCount(float)const " (?_CalcCircleAutoSegmentCount@ImDrawList@@QEBAHM@Z)
1>imguid.lib(imgui_draw.cpp.obj) : error LNK2019: unresolved external symbol __imp_cosf referenced in function "public: void __cdecl ImDrawList::PathArcTo(struct ImVec2 const &,float,float,float,int)" (?PathArcTo@ImDrawList@@QEAAXAEBUImVec2@@mmmh@Z)
1>imguid.lib(imgui_widgets.cpp.obj) : error LNK2001: unresolved external symbol __imp_cosf
1>imguid.lib(imgui_draw.cpp.obj) : error LNK2019: unresolved external symbol __imp_sinf referenced in function "public: void __cdecl ImDrawList::PathArcTo(struct ImVec2 const &,float,float,float,int)" (?PathArcTo@ImDrawList@@QEAAXAEBUImVec2@@mmmh@Z)
1>imguid.lib(imgui_widgets.cpp.obj) : error LNK2001: unresolved external symbol __imp_sinf
1>imguid.lib(imgui_widgets.cpp.obj) : error LNK2019: unresolved external symbol __imp_atof referenced in function "int __cdecl ImGui::RoundScalarWithFormatT(char const *,int,int)" (??$RoundScalarWithFormatT@H@ImGui@@YAHPEBDHH@Z)
1>imguid.lib(imgui_widgets.cpp.obj) : error LNK2019: unresolved external symbol __imp_atan2f referenced in function "bool __cdecl ImGui::ColorPicker4(char const *,float * const,int,float const *)" (?ColorPicker4@ImGui@@YA_NPEBDQEAMHPEBM@Z)
1>imguid.lib(imgui_widgets.cpp.obj) : error LNK2019: unresolved external symbol __imp_logf referenced in function "float __cdecl ImLog(float)" (?ImLog@@yamm@Z)
1>imguid.lib(imgui_widgets.cpp.obj) : error LNK2019: unresolved external symbol __imp_powf referenced in function "float __cdecl ImPow(float,float)" (?ImPow@@yammm@Z)
1>..\build\bin\Debug\windows\x86_64\test\test.exe : fatal error LNK1120: 15 unresolved externals
1>Done building project "test.vcxproj" -- FAILED.
========== Rebuild All: 1 succeeded, 1 failed, 0 skipped ==========

I am using VS-C++20-64bits.
Could you please help me?

[MacQuant]

I read online this might have to do with binding (Glad/Glfw) but not sure what exactly (might be un-related) here. I am doubting if even vcpkg supports Dear ImGui.

[ocornut]

It's a problem with Visual Studio standard libraries version mismatching, you seem to be linking with both MSVCRT and MSVCRTD. Not a problem specific to Dear ImGui, and probably equally unrelated to Glad or GLFW.

[MacQuant]

I see thank you very much. Is there a way to disable one or the other please? I am suing premake and have external libraries e.g. boost. Could be that the external libraries causing this i.e. one linking with one and the other library linking with the other. Thanks very much.

[ElectroGamesDev]

Have you managed to find a solution?

[MacQuant]

I have included the hpp/cpp files manually in the project instead of using vcpkg for ImGui. I am still looking for a solution while hacking it this hybrid way i.e. vcpkg vs cmake in same time.