Cant build programs with ImGui

[BlueBudgieTech]

When trying to run programs from the example folder, I get this error.

c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x1cf): undefined reference to `ImGui::DebugCheckVersionAndDataLayout(char const*, unsigned long long, unsigned long long, unsigned long long, unsigned long long, unsigned long long, unsigned long long)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x1d9): undefined reference to `ImGui::CreateContext(ImFontAtlas*)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x1de): undefined reference to `ImGui::GetIO()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x21d): undefined reference to `ImGui::StyleColorsDark(ImGuiStyle*)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x22c): undefined reference to `ImGui_ImplWin32_Init(void*)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x242): undefined reference to `ImGui_ImplDX11_Init(ID3D11Device*, ID3D11DeviceContext*)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x376): undefined reference to `ImGui_ImplDX11_NewFrame()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x37b): undefined reference to `ImGui_ImplWin32_NewFrame()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x380): undefined reference to `ImGui::NewFrame()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x394): undefined reference to `ImGui::ShowDemoWindow(bool*)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x3ae): undefined reference to `ImGui::Begin(char const*, bool*, int)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x3bd): undefined reference to `ImGui::Text(char const*, ...)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x3d3): undefined reference to `ImGui::Checkbox(char const*, bool*)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x3e9): undefined reference to `ImGui::Checkbox(char const*, bool*)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x422): undefined reference to `ImGui::SliderFloat(char const*, float*, float, float, char const*, int)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x43e): undefined reference to `ImGui::ColorEdit3(char const*, float*, int)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x46e): undefined reference to `ImGui::Button(char const*, ImVec2 const&)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x498): undefined reference to `ImGui::SameLine(float, float)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x4af): undefined reference to `ImGui::Text(char const*, ...)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x51f): undefined reference to `ImGui::Text(char const*, ...)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x524): undefined reference to `ImGui::End()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x548): undefined reference to `ImGui::Begin(char const*, bool*, int)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x557): undefined reference to `ImGui::Text(char const*, ...)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x587): undefined reference to `ImGui::Button(char const*, ImVec2 const&)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x594): undefined reference to `ImGui::End()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x599): undefined reference to `ImGui::Render()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x641): undefined reference to `ImGui::GetDrawData()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x649): undefined reference to `ImGui_ImplDX11_RenderDrawData(ImDrawData*)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x68c): undefined reference to `ImGui_ImplDX11_Shutdown()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x691): undefined reference to `ImGui_ImplWin32_Shutdown()'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x69b): undefined reference to `ImGui::DestroyContext(ImGuiContext*)'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x7d9): undefined reference to `D3D11CreateDeviceAndSwapChain'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0x84f): undefined reference to `D3D11CreateDeviceAndSwapChain'
c:/users/libthebirdlover/gcc/bin/../lib/gcc/x86_64-w64-mingw32/11.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe: C:\Users\libthebirdlover\AppData\Local\Temp\cchNlITp.o:testcalc.cpp:(.text+0xa31): undefined reference to `ImGui_ImplWin32_WndProcHandler(HWND__*, unsigned int, unsigned long long, long long)'
collect2.exe: error: ld returned 1 exit status

what error am I making?

[BlueBudgieTech]

Nevermind, it works on visual studio.