BIND 10 #2036: Integrate valgrind into our test suite

[BIND 10 Development]

#2036: Integrate valgrind into our test suite
-------------------------------------+-------------------------------------
                   Reporter:  muks   |                 Owner:  UnAssigned
                       Type:         |                Status:  reviewing
  enhancement                        |             Milestone:
                   Priority:         |  Sprint-20120619
  medium                             |            Resolution:
                  Component:  build  |             Sensitive:  0
  system                             |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  0
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by muks):

 The suppressions functionality has been split into another configure
 switch `--enable-valgrind-suppressions`. The rationale for this is:

 * Developers configure with `--enable-valgrind` and run `make check` to
 see all the error reports (`make check` continues testing even if there
 are Valgrind issues). This encourages us to fix these issues, especially
 if we are modifying those parts of the code as part of another bug.

 * Builders configure with `--enable-valgrind --enable-valgrind-
 suppressions` and run `make check` with suppressions. `make check` doesn't
 show existing suppressed issues and stops building if it finds a new
 Valgrind issue that is not suppressed.

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Ticket URL: <https://bind10.isc.org/ticket/2036#comment:6>
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