[mlpack] Building a specific test module

[Adeel Ahmad]

I wanted to know if there's a way to build only a certain test module in mlpack. Currently, I give the command "make mlpack_test", following the docs. I've found that by commenting out the unwanted files in "mlpack/tests/CMakeLists.txt" reduces the time to build, but generates this error at the end:


Linking CXX shared library ../../lib/libmlpack.so
[100%] Built target mlpack
Scanning dependencies of target mlpack_test
[100%] Building CXX object src/mlpack/tests/CMakeFiles/mlpack_test.dir/activation_functions_test.cpp.o
Linking CXX executable ../../../bin/mlpack_test
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 0 has invalid symbol index 11
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 1 has invalid symbol index 12
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 2 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 3 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 4 has invalid symbol index 11
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 5 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 6 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 7 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 8 has invalid symbol index 12
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 9 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 10 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 11 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 12 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 13 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 14 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 15 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 16 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 17 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 18 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 19 has invalid symbol index 28
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 20 has invalid symbol index 11
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 21 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 22 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 23 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 24 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 25 has invalid symbol index 12
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 26 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 27 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 28 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 29 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 30 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 31 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 32 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 33 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 34 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 35 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 36 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 37 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 38 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 39 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 40 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 41 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 42 has invalid symbol index 6
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 43 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 44 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 45 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 46 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 47 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_info): relocation 48 has invalid symbol index 13
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_line): relocation 0 has invalid symbol index 2
/usr/bin/ld: /usr/lib/debug/usr/lib/x86_64-linux-gnu/gcrt1.o(.debug_line): relocation 1 has invalid symbol index 2
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/gcrt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
make[3]: *** [bin/mlpack_test] Error 1
make[2]: *** [src/mlpack/tests/CMakeFiles/mlpack_test.dir/all] Error 2
make[1]: *** [src/mlpack/tests/CMakeFiles/mlpack_test.dir/rule] Error 2
make: *** [mlpack_test] Error 2

Is there an elegant workaround for this? Thanks!
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