undeclared function identified during make - gnupg-2.1.20

[Daniel Kahn Gillmor]

Hi Dustin--

On Tue 2017-05-09 17:12:22 +0000, Rogers, Dustin wrote:
> When I attempt to make, I receive this error when the compiler tries to evaluate sysutils.c, and locate a function called "IN_EXCL_UNLINK"
>
> gcc -DHAVE_CONFIG_H -I. -I..  -DLOCALEDIR=\"/usr/local/share/locale\" -DGNUPG_BINDIR="\"/usr/local/bin\"" -DGNUPG_LIBEXECDIR="\"/usr/local/libexec\"" -DGNUPG_LIBDIR="\"/usr/local/lib/gnupg\"" -DGNUPG_DATADIR="\"/usr/local/share/gnupg\"" -DGNUPG_SYSCONFDIR="\"/usr/local/etc/gnupg\"" -DGNUPG_LOCALSTATEDIR="\"/usr/local/var\""            -DWITHOUT_NPTH=1 -Wall -Wno-pointer-sign -Wpointer-arith  -g -O2 -MT libcommon_a-sysutils.o -MD -MP -MF .deps/libcommon_a-sysutils.Tpo -c -o libcommon_a-sysutils.o `test -f 'sysutils.c' || echo './'`sysutils.c
> sysutils.c: In function âgnupg_inotify_watch_socketâ:
> sysutils.c:1163: error: âIN_EXCL_UNLINKâ undeclared (first use in this function)
> sysutils.c:1163: error: (Each undeclared identifier is reported only once
> sysutils.c:1163: error: for each function it appears in.)
> make[3]: *** [libcommon_a-sysutils.o] Error 1
> make[3]: Leaving directory `/root/gnupg-2.1.20/common'
> make[2]: *** [all] Error 2

Please see my response on-list to Antonino Augusta
<antonino_augusta at hotmail.com> earlier today -- it sounds like y'all are
seeing the same issue.

       --dkg
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