vcpkg doesn't want to link 32-bit library, and always use x64 binary

[AFOEK]

So I have a project (experimental), I decided it will be cool if I make an elf32 binary, so I configure my cmake such a order that I can toggle if I want to build x64 bit or x32 bit binary. So far x64 binary compiled and linked with no error. But when I tried to build x32 binary I get that lld always linking with x64 library.

-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Building for Linux
-- Building for x86
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE  
-- Found OpenSSL: /home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libcrypto.a (found suitable version "3.2.1", minimum required is "3")  
-- Found ZLIB: /home/afoek/Documents/vcpkg/installed/x64-linux/lib/libz.a (found suitable version "1.3.1", minimum required is "1")  
-- Configuring done (0.7s)
-- Generating done (0.0s)
-- Build files have been written to: /home/afoek/Documents/WSGCC/build
/usr/bin/cmake -S/home/afoek/Documents/WSGCC/WebScrapperGenshinCharacterCard -B/home/afoek/Documents/WSGCC/build --check-build-system CMakeFiles/Makefile.cmake 0
/usr/bin/cmake -E cmake_progress_start /home/afoek/Documents/WSGCC/build/CMakeFiles /home/afoek/Documents/WSGCC/build//CMakeFiles/progress.marks
/usr/bin/gmake  -f CMakeFiles/Makefile2 all
gmake[1]: Entering directory '/home/afoek/Documents/WSGCC/build'
/usr/bin/gmake  -f CMakeFiles/WebScrapperGenshinCharacterCard.dir/build.make CMakeFiles/WebScrapperGenshinCharacterCard.dir/depend
gmake[2]: Entering directory '/home/afoek/Documents/WSGCC/build'
cd /home/afoek/Documents/WSGCC/build && /usr/bin/cmake -E cmake_depends "Unix Makefiles" /home/afoek/Documents/WSGCC/WebScrapperGenshinCharacterCard /home/afoek/Documents/WSGCC/WebScrapperGenshinCharacterCard /home/afoek/Documents/WSGCC/build /home/afoek/Documents/WSGCC/build /home/afoek/Documents/WSGCC/build/CMakeFiles/WebScrapperGenshinCharacterCard.dir/DependInfo.cmake "--color="
gmake[2]: Leaving directory '/home/afoek/Documents/WSGCC/build'
/usr/bin/gmake  -f CMakeFiles/WebScrapperGenshinCharacterCard.dir/build.make CMakeFiles/WebScrapperGenshinCharacterCard.dir/build
gmake[2]: Entering directory '/home/afoek/Documents/WSGCC/build'
[ 50%] Building CXX object CMakeFiles/WebScrapperGenshinCharacterCard.dir/WebScrapperGenshinCharacterCard.cpp.o
/usr/bin/c++ -DCURL_STATICLIB -isystem /home/afoek/Documents/vcpkg/installed/x64-linux/include -lstdc++fs -std=c++20 -m32 -std=gnu++20 -m32 -MD -MT CMakeFiles/WebScrapperGenshinCharacterCard.dir/WebScrapperGenshinCharacterCard.cpp.o -MF CMakeFiles/WebScrapperGenshinCharacterCard.dir/WebScrapperGenshinCharacterCard.cpp.o.d -o CMakeFiles/WebScrapperGenshinCharacterCard.dir/WebScrapperGenshinCharacterCard.cpp.o -c /home/afoek/Documents/WSGCC/WebScrapperGenshinCharacterCard/WebScrapperGenshinCharacterCard.cpp
[100%] Linking CXX executable /home/afoek/Documents/WSGCC/WebScrapperGenshinCharacterCard/wsgcc_linux_x32
/usr/bin/cmake -E cmake_link_script CMakeFiles/WebScrapperGenshinCharacterCard.dir/link.txt --verbose=1
/usr/bin/c++ -lstdc++fs -std=c++20 -m32  -m32 CMakeFiles/WebScrapperGenshinCharacterCard.dir/WebScrapperGenshinCharacterCard.cpp.o -o /home/afoek/Documents/WSGCC/WebScrapperGenshinCharacterCard/wsgcc_linux_x32  /home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libcpr.a /home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libgumbo.a /home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libcurl-d.a /home/afoek/Documents/vcpkg/installed/x64-linux/lib/libz.a /home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libssl.a /home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libcrypto.a -ldl 
/usr/bin/ld: i386:x86-64 architecture of input file `/home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libcpr.a(proxyauth.cpp.o)' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libcpr.a(session.cpp.o)' is incompatible with i386 output
/usr/bin/ld: i386:x86-64 architecture of input file `/home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libcpr.a(threadpool.cpp.o)' is incompatible with i386 output

Yes, I already downloaded x32 library.Yes, I already configure the cmake which it can be seen below.

cmake_minimum_required(VERSION 3.23)
set(CMAKE_VERBOSE_MAKEFILE ON)
project(WebScrapperGenshinCharacterCard LANGUAGES CXX)
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(VCPKG_CRT_LINKAGE dynamic)
set(VCPKG_LIBRARY_LINKAGE static)
set(CMAKE_CROSSCOMPILING "TRUE")

OPTION(BUILD_32 "Build for 32 bit" OFF)

set(CMAKE_TOOLCHAIN_FILE ${VCPKG_ROOT}/scripts/buildsystems/vcpkg.cmake)

if(VCPKG_TARGET_ANDROID)
    message(STATUS "Set up Android build variable")
    set(CMAKE_THREAD_LIBS_INIT "-pthread")
    set(CMAKE_HAVE_THREADS_LIBRARY 1)
    set(CMAKE_USE_WIN32_THREADS_INIT 0)
    set(CMAKE_USE_PTHREADS_INIT 1)
    set(THREADS_PREFER_PTHREAD_FLAG ON)
    set(VCPKG_TARGET_ANDROID ON)
    set(CMAKE_ANDROID_STL_TYPE c++_static)
    set(CMAKE_CXX20_EXTENSION_COMPILE_OPTION "-std=c++20")
else()
    set(CMAKE_CXX_FLAGS "-lstdc++fs -std=c++20")
    if(BUILD_32)
        set(CMAKE_SYSTEM_PROCESSOR "i686")
        set(VCPKG_TARGET_ARCHITECTURE x86)
        set(VCPKG_TARGET_TRIPLET "x86-linux" CACHE STRING "")
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
        set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32")
    endif()
endif()

what I had done that when I build the project and I add -DBUILD_32=1 it will try to build x32 binary.

[dg0yt]

/usr/bin/ld: i386:x86-64 architecture of input file `/home/afoek/Documents/vcpkg/installed/x64-linux/debug/lib/libcpr.a(proxyauth.cpp.o)' is incompatible with i386 output

Note installed/x64-linux: This is the location for the x64-linux artifacts, which implies x64. What you want is x86-linux. And that's what you try to set in your project, but...

Settings which are meant to affect the toolchain must be before the project() command. In particular: VCPKG_TARGET_TRIPLET.
https://learn.microsoft.com/en-us/vcpkg/users/buildsystems/cmake-integration#settings-reference

FTR some of the variables you set in your project have no effect because they are for script mode when portfiles control port builds (e.g. VCPKG_LIBRARY_LINKAGE). For the difference, see https://learn.microsoft.com/en-us/vcpkg/contributing/maintainer-guide#portfiles-are-run-in-script-mode.

[Neumann-A]

to add to this: switching architecture/triplets requires a clean cache/build folder

[AFOEK]

I usually delete the folder and rebuild so no cache

[AFOEK]

FTR some of the variables you set in your project have no effect because they are for script mode when portfiles control port builds (e.g. VCPKG_LIBRARY_LINKAGE). For the difference, see https://learn.microsoft.com/en-us/vcpkg/contributing/maintainer-guide#portfiles-are-run-in-script-mode.

So I need to set VCPKG_LIBRARY_LINKAGE variable then ? not VCPKG_TARGET_TRIPLET ?