pgsql: Undefine setlocale() macro on Win32

Undefine setlocale() macro on Win32

New versions of libintl redefine setlocale() to a macro
which causes problems when the backend and libintl are
linked against different versions of the runtime, which
is often the case in msvc builds.

Hiroshi Inoue, slightly updated comment by me

Branch
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REL8_4_STABLE

Details
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http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=ff18de81123a8412c1bcce94106d2ccca69aa193

Modified Files
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src/include/port.h |    9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)