j041d-link1.c.ref

j041d-link1.c:1:1: error: Identifier f declared with incompatible types in different translation units.

    Undefined behavior (UB-TIN1):
        see C11 section 6.2.7:2 http://rvdoc.org/C11/6.2.7
        see C11 section J.2:1 item 15 http://rvdoc.org/C11/J.2
        see CERT-C section DCL23-C http://rvdoc.org/CERT-C/DCL23-C
        see CERT-C section DCL40-C http://rvdoc.org/CERT-C/DCL40-C
        see MISRA-C section 8.1:3 http://rvdoc.org/MISRA-C/8.1

Translation failed (kcc_config dumped). To repeat, run this command in directory unit-fail-compilation: