Re: PCRE v2 compile error, was Re: What's cooking in git.git (May 2017, #01; Mon, 1)

> Hi Ævar,
>
> On Sun, 30 Apr 2017, Junio C Hamano wrote:
>
>> * ab/grep-pcre-v2 (2017-04-25) 20 commits
>>  - SQUASH???
>>  - Makefile & configure: make PCRE v2 the default PCRE implementation
>>  - grep: remove support for concurrent use of both PCRE v1 & v2
>>  - grep: add support for PCRE v2
>>  - grep: add support for the PCRE v1 JIT API
>>  - perf: add a performance comparison test of grep -E and -P
>>  - grep: change the internal PCRE code & header names to be PCRE1
>>  - grep: change the internal PCRE macro names to be PCRE1
>>  - test-lib: rename the LIBPCRE prerequisite to PCRE
>>  - grep: make grep.patternType=[pcre|pcre1] a synonym for "perl"
>>  - grep & rev-list doc: stop promising libpcre for --perl-regexp
>>  - log: add -P as a synonym for --perl-regexp
>>  - log: add exhaustive tests for pattern style options & config
>>  - grep: add a test for backreferences in PCRE patterns
>>  - Makefile & configure: reword outdated comment about PCRE
>>  - grep: remove redundant `regflags &= ~REG_EXTENDED` assignments
>>  - grep: remove redundant regflags assignment under PCRE
>>  - grep: submodule-related case statements should die if new fields are added
>>  - grep: add tests for grep pattern types being passed to submodules
>>  - grep: amend submodule recursion test in preparation for rx engine testing
>>
>>  PCRE2, which has an API different from and incompatible with PCRE,
>>  can now be chosen to support "grep -P -e '<pattern>'" and friends.
>
> FWIW for quite a couple of recent builds, `pu` fails on Windows with a
> variation of this error:
>
>             CC blob.o
>         In file included from revision.h:5:0,
>                          from bisect.c:4:
>         grep.h:16:19: fatal error: pcre2.h: No such file or directory
>          #include <pcre2.h>
>                            ^
>         compilation terminated.
>
> Maybe this can be fixed before hitting `next`?