foo.c: In function 'main':
foo.c:8:13: warning: unused variable 's' [-Wunused-variable]
    8 |         int s=0;
      |             ^
foo.c:7:13: warning: unused variable 't' [-Wunused-variable]
    7 |         int t=0;
      |             ^
/nix/store/jfkmqz20q8fsaqizcml86adxqyzlwllx-binutils-2.38/bin/ld: /tmp/cc5if5Tl.o: in function `main':
foo.c:(.text.startup+0x32): undefined reference to `Length'
/nix/store/jfkmqz20q8fsaqizcml86adxqyzlwllx-binutils-2.38/bin/ld: foo.c:(.text.startup+0x41): undefined reference to `Length'
collect2: error: ld returned 1 exit status

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