Unable to install Python’s Pyrfc library for SAP on Raspberry pi 4

this error message

arm-linux-gnueabihf-gcc: error: unrecognized command-line option -minline-all-stringops

arm-linux-gnueabihf-gcc is 32bit

htis pyrfc setup.py

https://github.com/SAP/PyRFC/blob/main/setup.py

# https://launchpad.support.sap.com/#/notes/2573953
if sys.platform.startswith("linux"):
    os.system('strings $SAPNWRFC_HOME/lib/libsapnwrfc.so | grep "Patch Level"')
    LIBS = ["sapnwrfc", "sapucum"]
    MACROS = [
        ("NDEBUG", None),
        ("_LARGEFILE_SOURCE", None),
        ("_CONSOLE", None),
        ("_FILE_OFFSET_BITS", 64),
        ("SAPonUNIX", None),
        ("SAPwithUNICODE", None),
        ("SAPwithTHREADS", None),
        ("SAPonLIN", None),
    ]
    COMPILE_ARGS = [
        "-Wall",
        "-O2",
        "-fexceptions",
        "-funsigned-char",
        "-fno-strict-aliasing",
        "-Wall",
        "-Wno-uninitialized",
        "-Wno-deprecated-declarations",
        "-Wno-unused-function",
        "-Wcast-align",
        "-fPIC",
        "-pthread",
        "-minline-all-stringops",
        "-I{}/include".format(SAPNWRFC_HOME),
    ]
    LINK_ARGS = ["-L{}/lib".format(SAPNWRFC_HOME)]

So you probably need aarch64-linux-gnu-gcc