Re: Problem with valgrind-tests: relies on bash not causing error

[Bruno Haible]

Hi Reuben,

> The test for whether to use valgrind runs:
> 
> /bin/bash -c 'exit 0'
> 
> This looks pretty harmless; unfortunately, bash itself causes problems:

I'd suggest that you change m4/valgrind-tests.m4 to use the AC_CACHE_CHECK
macro instead of "lone" AC_MSG_CHECKING and AC_MSG_RESULT invocations.
Then you have an cache variable that you set as an environment variable
in order to override the result of this test, e.g.
  $ env gl_cv_use_valgrind=yes ./configure

Remember, nowadays that the autoconf cache is disabled by default, the
major benefit of AC_CACHE_CHECK is that it provides the user a way to
selectively override configure test results.

Bruno