Linking fails

[meerfrau]

Environment Information

Open Babel version: git master
Operating system and version: linux-mainline

Expected Behavior

successfull linking

Actual Behavior

/usr/bin/ld: CMakeFiles/xtcformat.dir/xtcformat.cpp.o: in function `OpenBabel::XTCFormat::xdropen(__rpc_xdr*, char const*, char const*)':
xtcformat.cpp:(.text+0x123): undefined reference to `xdrstdio_create'
/usr/bin/ld: xtcformat.cpp:(.text+0x179): undefined reference to `xdrstdio_create'
/usr/bin/ld: CMakeFiles/xtcformat.dir/xtcformat.cpp.o: in function `OpenBabel::XTCFormat::xdr3dfcoord(__rpc_xdr*, float*, int*, float*)':
xtcformat.cpp:(.text+0x9ca): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0xa37): undefined reference to `xdr_float'
/usr/bin/ld: xtcformat.cpp:(.text+0xab7): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0xaca): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0xadd): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0xaf0): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0xb03): undefined reference to `xdr_int'
/usr/bin/ld: CMakeFiles/xtcformat.dir/xtcformat.cpp.o:xtcformat.cpp:(.text+0xb16): more undefined references to `xdr_int' follow
/usr/bin/ld: CMakeFiles/xtcformat.dir/xtcformat.cpp.o: in function `OpenBabel::XTCFormat::xdr3dfcoord(__rpc_xdr*, float*, int*, float*)':
xtcformat.cpp:(.text+0xc4c): undefined reference to `xdr_opaque'
/usr/bin/ld: xtcformat.cpp:(.text+0xed2): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0xf05): undefined reference to `xdr_float'
/usr/bin/ld: xtcformat.cpp:(.text+0xf2a): undefined reference to `xdr_vector'
/usr/bin/ld: xtcformat.cpp:(.text+0xf33): undefined reference to `xdr_float'
/usr/bin/ld: xtcformat.cpp:(.text+0xf47): undefined reference to `xdr_vector'
/usr/bin/ld: xtcformat.cpp:(.text+0xf60): undefined reference to `xdr_float'
/usr/bin/ld: xtcformat.cpp:(.text+0x1325): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0x1338): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0x134b): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0x135e): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0x1371): undefined reference to `xdr_int'
/usr/bin/ld: CMakeFiles/xtcformat.dir/xtcformat.cpp.o:xtcformat.cpp:(.text+0x1384): more undefined references to `xdr_int' follow
/usr/bin/ld: CMakeFiles/xtcformat.dir/xtcformat.cpp.o: in function `OpenBabel::XTCFormat::xdr3dfcoord(__rpc_xdr*, float*, int*, float*)':
xtcformat.cpp:(.text+0x21aa): undefined reference to `xdr_opaque'
/usr/bin/ld: CMakeFiles/xtcformat.dir/xtcformat.cpp.o: in function `OpenBabel::XTCFormat::ReadMolecule(OpenBabel::OBBase*, OpenBabel::OBConversion*)':
xtcformat.cpp:(.text+0x24b6): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0x24d3): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0x24f4): undefined reference to `xdr_int'
/usr/bin/ld: xtcformat.cpp:(.text+0x2505): undefined reference to `xdr_float'
/usr/bin/ld: xtcformat.cpp:(.text+0x2516): undefined reference to `xdr_float'
/usr/bin/ld: xtcformat.cpp:(.text+0x2527): undefined reference to `xdr_float'
/usr/bin/ld: xtcformat.cpp:(.text+0x2538): undefined reference to `xdr_float'
/usr/bin/ld: xtcformat.cpp:(.text+0x2549): undefined reference to `xdr_float'
/usr/bin/ld: CMakeFiles/xtcformat.dir/xtcformat.cpp.o:xtcformat.cpp:(.text+0x255a): more undefined references to `xdr_float' follow

Steps to Reproduce

cmake --install build

The result happens with either gcc 11 or gcc 13.

probable duplicate of #1996

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