Compiler Error: target specific option mismatch

[Dabendorf]

When compiling on Linux, I get the following errors:

In file included from /usr/lib64/gcc/x86_64-suse-linux/7/include/immintrin.h:79:0,
                 from /usr/lib64/gcc/x86_64-suse-linux/7/include/x86intrin.h:48,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/src/core/alex_base.h:28,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/src/core/alex.h:38,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/test/unittest_alex.h:6,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/test/unittest_main.cpp:7:
/usr/lib64/gcc/x86_64-suse-linux/7/include/lzcntintrin.h:64:1: error: inlining failed in call to always_inline ‘long long unsigned int _lzcnt_u64(long long unsigned int)’: target specific option mismatch
 _lzcnt_u64 (unsigned long long __X)
 ^~~~~~~~~~
In file included from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/src/core/alex_fanout_tree.h:13:0,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/src/core/alex.h:39,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/test/unittest_alex.h:6,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/test/unittest_main.cpp:7:
/vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/src/core/alex_nodes.h:2062:56: note: called from here
             bit_pos - (63 - static_cast<int>(_lzcnt_u64(bitmap_left_gaps)));
                                              ~~~~~~~~~~^~~~~~~~~~~~~~~~~~
In file included from /usr/lib64/gcc/x86_64-suse-linux/7/include/immintrin.h:79:0,
                 from /usr/lib64/gcc/x86_64-suse-linux/7/include/x86intrin.h:48,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/src/core/alex_base.h:28,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/src/core/alex.h:38,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/test/unittest_alex.h:6,
                 from /vol/fob-vol4/nebenf17/schraluk/Masterarbeit/ALEX/test/unittest_main.cpp:7:
/usr/lib64/gcc/x86_64-suse-linux/7/include/lzcntintrin.h:64:1: error: inlining failed in call to always_inline ‘long long unsigned int _lzcnt_u64(long long unsigned int)’: target specific option mismatch
 _lzcnt_u64 (unsigned long long __X)

This is in fact the same as stated in that issue here: #13

The problem is, the flags named in the solution are already in the CMakeLists.txt file, so I cant add them to solve the issue?
Or am I doing something wrong?

cmake_minimum_required(VERSION 3.12)
project(alex)

set(CMAKE_CXX_STANDARD 14)

# Define the macro ‘DEBUG' in the debug mode
if(CMAKE_BUILD_TYPE STREQUAL Debug)        
    ADD_DEFINITIONS(-DDEBUG)               
endif()

if(MSVC)
    set(CMAKE_CXX_FLAGS "/O2 /arch:AVX2 /W1 /EHsc")
elseif (CMAKE_CXX_COMPILER_ID STREQUAL "Intel")
    set(CMAKE_CXX_FLAGS "-O3 -xHost")
else()
    # clang and gcc
    set(CMAKE_CXX_FLAGS "-O3 -march=native -Wall -Wextra")
endif()

include_directories(src/core)

add_executable(example src/examples/main.cpp)
add_executable(benchmark src/benchmark/main.cpp)

set(DOCTEST_DOWNLOAD_DIR ${CMAKE_CURRENT_BINARY_DIR}/doctest)
file(DOWNLOAD
    https://raw.githubusercontent.com/onqtam/doctest/2.4.6/doctest/doctest.h
    ${DOCTEST_DOWNLOAD_DIR}/doctest.h
    EXPECTED_HASH SHA1=40728d2bed7f074e80cb095844820114e7d16ce0
)

add_executable(test_alex test/unittest_main.cpp)
target_include_directories(test_alex PRIVATE ${DOCTEST_DOWNLOAD_DIR})

enable_testing()
add_test(test_alex test_alex)

[wc222]

Just my experience, I succeed to compile the project with changing the compile option from -march=native to -march=skylake-avx512/-march=cascadelake/-march=cooperlake.
I get the same error when I set it as sandybridge. I guess it is too old to support some AVX instructions.
By the way, I get another error "no such instruction: vpopcntq (%rax),%ymm0" when I set it as native (sapphirerapids) or tigerlake.