Problem with include

[ChrisNabold]

I try to run the sample problem from the gsl manual.
The main file is the same as described there
the gsl library is in the following directory structure:
C:/gsl-2.2.1_mingw-6.2.0/gsl-2.2.1-static
/include
/lib
the CMakeLists.txt is as follows:
cmake_minimum_required(VERSION 3.14)
project(EX8 C)

set(CMAKE_C_STANDARD 99)

SET( GSL_INCLUDE_DIR "C:/gsl-2.2.1_mingw-6.2.0/gsl-2.2.1-static/include" )
INCLUDE_DIRECTORIES( "C:/gsl-2.2.1_mingw-6.2.0/gsl-2.2.1-static/include" )
SET( GSL_LIB_BIN "C:/gsl-2.2.1_mingw-6.2.0/gsl-2.2.1-static/lib" )

add_executable(EX8 main.c)
TARGET_LINK_LIBRARIES(EX8 ${GSL_LIB_BIN}/libgsl.a )

The header file gsl/gsl_sf_bessel.h is in the include directory

I always receive the following error message:
CMakeFiles\EX8.dir/objects.a(main.c.obj): In function main': C:/Users/Chris/CLionProjects/EX8/main.c:7: undefined reference to gsl_sf_bessel_J0'

What is wrong? Any help will be appreciated