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Peter Eisentraut 127ccb3725 Fix compiler warning for ppoll() on Cygwin
_GNU_SOURCE is required to get the prototype, so just define that
globally, as was already done in the linux template.

Discussion: https://www.postgresql.org/message-id/flat/6b467edc-4018-521f-ab18-171f098557ca%402ndquadrant.com
2019-12-22 23:20:00 +01:00

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# src/template/cygwin
SRCH_LIB="/usr/local/lib"
# This is required for ppoll(2), and perhaps other things
CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
# Extra CFLAGS for code that will go into a shared library
CFLAGS_SL=""
# --allow-multiple-definition is required to link pg_dump because it finds
# pg_toupper() etc. in both libpq and pgport
# we'd prefer to use --disable-auto-import to match MSVC linking behavior,
# but support for it in Cygwin is too haphazard
LDFLAGS="$LDFLAGS -Wl,--allow-multiple-definition -Wl,--enable-auto-import"