Linking errors when building a test example with MSVC and VC2022

[Aleks048]

Hi,
I've have a linking error for some reason when I try to build with msvc.
I've built the webui with no problem but when I try to build my own code with

cl test.cpp /std:c++17 /I"path wo web ui include" /link /LIBPATH:"path to web ui " /SUBSYSTEM:WINDOWS webui-2-static.lib user32.lib Advapi32.lib Shell32.lib Ole32.lib /OUT:my_application.exe

I get a bunch of linker errors for some reason:

LINK : warning LNK4098: defaultlib 'MSVCRTD' conflicts with use of other libs; use /NODEFAULTLIB:library
LINK : warning LNK4217: symbol '__acrt_iob_func' defined in 'libucrt.lib(_file.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function '_webui_log'
LINK : warning LNK4286: symbol '__acrt_iob_func' defined in 'libucrt.lib(_file.obj)' is imported by 'webui-2-static.lib(civetweb.obj)'
LINK : warning LNK4217: symbol 'fclose' defined in 'libucrt.lib(fclose.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function '_webui_browser_create_new_profile'
LINK : warning LNK4286: symbol 'fclose' defined in 'libucrt.lib(fclose.obj)' is imported by 'webui-2-static.lib(civetweb.obj)'
LINK : warning LNK4217: symbol '__stdio_common_vfprintf' defined in 'libucrt.lib(output.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function '_vfprintf_l'
LINK : warning LNK4286: symbol '__stdio_common_vfprintf' defined in 'libucrt.lib(output.obj)' is imported by 'webui-2-static.lib(civetweb.obj)'
LINK : warning LNK4217: symbol '__stdio_common_vsprintf' defined in 'libucrt.lib(output.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function 'vsnprintf'
LINK : warning LNK4286: symbol '__stdio_common_vsprintf' defined in 'libucrt.lib(output.obj)' is imported by 'webui-2-static.lib(civetweb.obj)'
LINK : warning LNK4217: symbol 'free' defined in 'libucrt.lib(free.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function '_webui_system_win32_out'
LINK : warning LNK4286: symbol 'free' defined in 'libucrt.lib(free.obj)' is imported by 'webui-2-static.lib(win32_wv2.obj)'
LINK : warning LNK4286: symbol 'free' defined in 'libucrt.lib(free.obj)' is imported by 'webui-2-static.lib(civetweb.obj)'
LINK : warning LNK4217: symbol 'malloc' defined in 'libucrt.lib(malloc.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function '_webui_malloc'
LINK : warning LNK4286: symbol 'malloc' defined in 'libucrt.lib(malloc.obj)' is imported by 'webui-2-static.lib(win32_wv2.obj)'
LINK : warning LNK4286: symbol 'malloc' defined in 'libucrt.lib(malloc.obj)' is imported by 'webui-2-static.lib(civetweb.obj)'
LINK : warning LNK4217: symbol 'atoi' defined in 'libucrt.lib(atox.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function '_webui_get_child_process_id'
LINK : warning LNK4286: symbol 'atoi' defined in 'libucrt.lib(atox.obj)' is imported by 'webui-2-static.lib(civetweb.obj)'
LINK : warning LNK4217: symbol 'strcpy_s' defined in 'libucrt.lib(strcpy_s.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function 'webui_set_custom_parameters'
LINK : warning LNK4217: symbol 'strcat_s' defined in 'libucrt.lib(strcat_s.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function '_webui_generate_js_bridge'
LINK : warning LNK4217: symbol 'strncmp' defined in 'libucrt.lib(strncmp.obj)' is imported by 'webui-2-static.lib(webui.obj)' in function '_webui_remove_firefox_profile_ini'
LINK : warning LNK4286: symbol 'strncmp' defined in 'libucrt.lib(strncmp.obj)' is imported by 'webui-2-static.lib(civetweb.obj)'
LINK : warning LNK4217: symbol 'wcscpy_s' defined in 'libucrt.lib(wcscpy_s.obj)' is imported by 'webui-2-static.lib(win32_wv2.obj)' in function '_webui_win32_wv2_set_url'
LINK : warning LNK4217: symbol 'wcslen' defined in 'libucrt.lib(strnlen.obj)' is imported by 'webui-2-static.lib(win32_wv2.obj)' in function '_webui_win32_wv2_set_url'
LINK : warning LNK4286: symbol 'wcslen' defined in 'libucrt.lib(strnlen.obj)' is imported by 'webui-2-static.lib(civetweb.obj)'
LINK : warning LNK4217: symbol '_errno' defined in 'libucrt.lib(errno.obj)' is imported by 'webui-2-static.lib(civetweb.obj)' in function 'check_authorization'
LINK : warning LNK4217: symbol 'fflush' defined in 'libucrt.lib(fflush.obj)' is imported by 'webui-2-static.lib(civetweb.obj)' in function 'mg_cry_internal_impl'
LINK : warning LNK4217: symbol '_fileno' defined in 'libucrt.lib(fileno.obj)' is imported by 'webui-2-static.lib(civetweb.obj)' in function 'pull_inner'
LINK : warning LNK4217: symbol 'fputc' defined in 'libucrt.lib(fputc.obj)' is imported by 'webui-2-static.lib(civetweb.obj)' in function 'mg_cry_internal_impl'
LINK : warning LNK4217: symbol 'calloc' defined in 'libucrt.lib(calloc.obj)' is imported by 'webui-2-static.lib(civetweb.obj)' in function 'mg_calloc'
LINK : warning LNK4217: symbol 'wcscmp' defined in 'libucrt.lib(wcscmpc.obj)' is imported by 'webui-2-static.lib(civetweb.obj)' in function 'path_to_unicode'
LINK : warning LNK4217: symbol '_read' defined in 'libucrt.lib(read.obj)' is imported by 'webui-2-static.lib(civetweb.obj)' in function 'pull_inner'
LINK : warning LNK4217: symbol '_lseeki64' defined in 'libucrt.lib(lseek.obj)' is imported by 'webui-2-static.lib(civetweb.obj)' in function 'send_file_data'
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp__wassert referenced in function webui_get_new_window_id
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_isalnum referenced in function _webui_url_encode
webui-2-static.lib(civetweb.obj) : error LNK2001: unresolved external symbol __imp_isalnum
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_fopen_s referenced in function _webui_browser_create_new_profile
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_fgets referenced in function _webui_remove_firefox_profile_ini
webui-2-static.lib(civetweb.obj) : error LNK2001: unresolved external symbol __imp_fgets
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_fputs referenced in function _webui_browser_create_new_profile
webui-2-static.lib(civetweb.obj) : error LNK2001: unresolved external symbol __imp_fputs
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_fseek referenced in function _webui_http_send_file
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_ftell referenced in function _webui_http_send_file
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_realloc referenced in function _webui_system_win32_out
webui-2-static.lib(civetweb.obj) : error LNK2001: unresolved external symbol __imp_realloc
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_srand referenced in function _webui_init
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_rand referenced in function _webui_get_free_port
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_strtod referenced in function webui_get_float_at
webui-2-static.lib(civetweb.obj) : error LNK2001: unresolved external symbol __imp_strtod
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_strtol referenced in function webui_is_high_contrast
webui-2-static.lib(civetweb.obj) : error LNK2001: unresolved external symbol __imp_strtol
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_strtoll referenced in function webui_get_int_at
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_strtoul referenced in function _webui_receive
webui-2-static.lib(civetweb.obj) : error LNK2001: unresolved external symbol __imp_strtoul
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp__dupenv_s referenced in function _webui_get_temp_path
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_strtok_s referenced in function _webui_ws_process
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp_strncpy referenced in function _webui_get_local_ip
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp__time64 referenced in function time
webui-2-static.lib(civetweb.obj) : error LNK2001: unresolved external symbol __imp__time64
webui-2-static.lib(webui.obj) : error LNK2019: unresolved external symbol __imp__getcwd referenced in function _webui_get_current_path
webui-2-static.lib(win32_wv2.obj) : error LNK2019: unresolved external symbol __imp__wputenv referenced in function _webui_win32_wv2_create_environment
webui-2-static.lib(win32_wv2.obj) : error LNK2019: unresolved external symbol __imp__CrtDbgReportW referenced in function "public: void * __cdecl Microsoft::WRL::Details::MakeAllocator::Allocate(void)" (?Allocate@?$MakeAllocator@VControllerCompletedHandler@@@details@WRL@Microsoft@@QEAAPEAXXZ)
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__wfopen referenced in function mg_fopen
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_ferror referenced in function mg_handle_form_request
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_fgetc referenced in function mg_fgetc
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_fopen referenced in function mg_modify_passwords_file_ha1
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_fwrite referenced in function mg_modify_passwords_file_ha1
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__pclose referenced in function do_ssi_exec
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__popen referenced in function do_ssi_exec
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_remove referenced in function dav_move_file
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp___stdio_common_vsscanf referenced in function _vsscanf_l
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_atof referenced in function read_websocket
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__strtoi64 referenced in function get_request
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__strtoui64 referenced in function parse_auth_header
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__stat64i32 referenced in function stat
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__gmtime64 referenced in function gmtime
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__localtime64 referenced in function localtime
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_strftime referenced in function gmt_time_string
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_isdigit referenced in function mg_url_decode
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_isxdigit referenced in function mg_read
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_isspace referenced in function parse_auth_header
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_isprint referenced in function get_http_header_len
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_isgraph referenced in function skip_to_end_of_word_and_terminate
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_iscntrl referenced in function mg_modify_passwords_file_ha1
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_toupper referenced in function dav_move_file
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_tolower referenced in function mg_url_decode
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_wcscat referenced in function mg_opendir
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_strcspn referenced in function mg_handle_form_request
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_strerror referenced in function check_authorization
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_strncat referenced in function handle_request
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp_strspn referenced in function skip_quoted
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__rmdir referenced in function remove_directory
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__access referenced in function put_file
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__beginthread referenced in function mg_start_thread
webui-2-static.lib(civetweb.obj) : error LNK2019: unresolved external symbol __imp__beginthreadex referenced in function mg_start_thread_with_id
LIBCMT.lib(exe_winmain.obj) : error LNK2019: unresolved external symbol WinMain referenced in function "int __cdecl __scrt_common_main_seh(void)" (?__scrt_common_main_seh@@yahxz)

did anyone get a similar error and was able to resolve?

[AlbertShown]

I used WebUI GPT - C/C++ and that's what he said:

Your application is being built with Debug runtime (/MDd, /MTd)
But webui-2-static.lib was built with Release runtime (/MD, /MT).

Hence all those __imp__ unresolved external symbols (like __imp_fopen_s, __imp_strtol, etc.) are from the wrong C runtime library being linked.

Option 1: Build your app in Release mode
cl test.cpp /O2 /MD /std:c++17 /I"path\to\webui\include" /link /LIBPATH:"path\to\webui\lib" /SUBSYSTEM:WINDOWS webui-2-static.lib user32.lib Advapi32.lib Shell32.lib Ole32.lib /OUT:my_application.exe

Option 2: Rebuild WebUI in Debug mode

cd webui
nmake debug
cl test.cpp /MDd /Zi /Od /std:c++17 /I"path\to\webui\include" /link /LIBPATH:"path\to\webui\lib" /SUBSYSTEM:WINDOWS webui-2-static.lib user32.lib Advapi32.lib Shell32.lib Ole32.lib /OUT:my_debug_app.exe