Unable to run tests due to "unexpected uninitialized" in log

[Rx1513]

After adding 3910185, tests started to fail on cases when nonexsistent path is checked.

For example:

cov/gcov-tool/path.sh ............   lcov: WARNING: Use of uninitialized value $tool in -x at /usr/src/RPM/BUILD/lcov-2.4/bin/geninfo line 341.
  geninfo: WARNING: Use of uninitialized value $tool in -x at /usr/src/RPM/BUILD/lcov-2.4/bin/geninfo line 341.
unexpected 'uninitialized' in '/usr/src/RPM/BUILD/lcov-2.4/tests//test.log' for lcov/gcov-tool/path.sh
[fail] (time 5.4s, mem 34.0MB)
    Skipping 236 previous lines (see /usr/src/RPM/BUILD/lcov-2.4/tests//test.log)
    ...
      lines.......: 100.0% (2 of 2 lines)
      functions...: 100.0% (1 of 1 function)
    Message summary:
      no messages were reported
    geninfo: ERROR: cannot access gcov tool 'gcov.nonexistent' at /usr/src/RPM/BUILD/lcov-2.4/bin/geninfo line 342.
    geninfo: ERROR: cannot access gcov tool '/gcov.nonexistent' at /usr/src/RPM/BUILD/lcov-2.4/bin/geninfo line 342.
    geninfo: WARNING: Use of uninitialized value $tool in -x at /usr/src/RPM/BUILD/lcov-2.4/bin/geninfo line 341.
    geninfo: ERROR: cannot access gcov tool './gcov.nonexistent' at /usr/src/RPM/BUILD/lcov-2.4/bin/geninfo line 342.
    Tests passed
  EXITCODE ...: 1
make[3]: *** [../../common.mak:116: check] Error 1

I'm not very familiar with perl, but it's seems that for some reason abs_path returns undefined value for nonexsistent paths which later is used for file check.

Additional 'defined' check for $tool variable seems to fix the problem with this exact test, but I get similar issue with gendiffcov/errs/msgtest.sh test due to:

lcov: WARNING: Use of uninitialized value in exists

[henry2cox]

Can you run the failing tests again, after setting environment variable LCOV_SHOW_LOCATION=1
That will give a bit more information.

What are your versions of:

• perl
• GCC
• lcov

What is your platform and version?

Thanks