Re: [PATCH 1/2] test-lib: add LIBPCRE1 & LIBPCRE2 prerequisites

> Add LIBPCRE1 and LIBPCRE2 prerequisites which are true when git is
> compiled with USE_LIBPCRE1=YesPlease or USE_LIBPCRE2=YesPlease,
> respectively.
>
> The syntax of PCRE1 and PCRE2 isn't the same in all cases (see
> pcresyntax(3) and pcre2syntax(3)). If test are added that test for
> those they'll need to be guarded by these new prerequisites.
>
> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
> ---
>  t/README      | 12 ++++++++++++
>  t/test-lib.sh |  2 ++
>  2 files changed, 14 insertions(+)
> 
> diff --git a/t/README b/t/README
> index 4b079e4494..599cd9808c 100644
> --- a/t/README
> +++ b/t/README
> @@ -808,6 +808,18 @@ use these, and "test_set_prereq" for how to define your own.
>     Git was compiled with support for PCRE. Wrap any tests
>     that use git-grep --perl-regexp or git-grep -P in these.
>  
> + - LIBPCRE1
> +
> +   Git was compiled with PCRE v1 support via
> +   USE_LIBPCRE1=YesPlease. Wrap any PCRE using tests that for some
> +   reason need v1 of the PCRE library instead of v2 in these.