undeclared function identified during make - gnupg-2.1.20

[Rogers, Dustin]

Hi Werner and gnupg community:

I am having an issue installing gnupg2-2.1.20 from source, and the error is unclear to me. I am hoping someone may have some advice....

It seems the configure runs clean, identifies needed packages, etc.

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


Being that it identifies a "gnupg_inotify_watch_socket". I am guessing it has to do with the fact that I uninstalled the rpm-based version of gnupg 2.0.18, and somehow it is looking for sockets used by gnupg.

Does anyone know why I receive this error?

Any help is appreciated in advance.
Thank you,
-Dustin Rogers

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Dustin Rogers, MSIA
Data Security
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