FreeRDP: Error after integration with other code

I am trying to integrate my own developments into the source code, in particular, the FLTK library. I made the necessary improvements in the file client/X11/CMakeLists.txt added the inclusion of his code in the compilation.

I performed my work based on the cfltk library.

...

set(GFREE gfree)
add_subdirectory(${GFREE})
set(GFREE_FLAGS
    gfree
    cfltk
    fltk
    fltk_images
    fltk_jpeg
    fltk_z
    png16
    m
    X11
    Xinerama
    Xfixes
    Xcursor
    Xft
    Xrender
    fontconfig
)
ADD_LIBRARY(cfltk STATIC IMPORTED)
set_target_properties(cfltk PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/gfree_lib/libcfltk.a)
ADD_LIBRARY(fltk STATIC IMPORTED)
set_target_properties(fltk PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/gfree_lib/libfltk.a)
ADD_LIBRARY(fltk_images STATIC IMPORTED)
set_target_properties(fltk_images PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/gfree_lib/libfltk_images.a)
ADD_LIBRARY(fltk_jpeg STATIC IMPORTED)
set_target_properties(fltk_jpeg PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/gfree_lib/libfltk_jpeg.a)
ADD_LIBRARY(fltk_z STATIC IMPORTED)
set_target_properties(fltk_z PROPERTIES IMPORTED_LOCATION ${CMAKE_CURRENT_SOURCE_DIR}/gfree_lib/libfltk_z.a)

....

set(${MODULE_PREFIX}_LIBS ${${MODULE_PREFIX}_LIBS} freerdp-client freerdp m ${GFREE_FLAGS})
....

During the connection process, connection error messages appear::

[21:01:24:425] [4624:4625] [ERROR][com.freerdp.core.nego] - Protocol Security Negotiation Failure
[21:01:24:426] [4624:4625] [ERROR][com.freerdp.core] - rdp_client_connect:freerdp_set_last_error_ex ERRCONNECT_SECURITY_NEGO_CONNECT_FAILED [0x0002000C]
[21:01:24:426] [4624:4625] [ERROR][com.freerdp.core.connection] - Error: protocol security negotiation or connection failure

Compiled with default flags. If I compile WITHOUT my own code, everything is connected. Why does the integration of third-party code affect the connection so much when I don’t touch the developers’ code directly? Maybe I should specify some specific flags when compiling? Please tell me, I ask for help!

Just in case, I attach the source code and the build and compilation logs.

cmake.log make.log My source code.zip