audit fails to build and missing documentation and default rule files

I'm trying to rebuild auditd with docs in options.

OPTIONS=(strip docs !libtool !staticlibs emptydirs zipman purge !debug)

Because of missing documentation and examples such as these

examples in /usr/share/doc/audit/rules
/usr/share/doc/audit/rules/{10-base-config,99-finalize}.rules

yay -G core/audit
cd audit
makepkg -rsi

fstack-protector-strong -fno-plt -MT normalize.lo -MD -MP -MF .deps/normalize.Tpo -c -o normalize.lo normalize.c
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -I. -I.. -I../src -I../lib -D_FORTIFY_SOURCE=2 -fPIC -DPIC -D_GNU_SOURCE -g -DNDEBUG -Wno-pointer-sign -Wno-enum-compare -Wno-switch -march=ivybridge -O2 -pipe -fstack-protector-strong -fno
-plt -MT normalize.lo -MD -MP -MF .deps/normalize.Tpo -c normalize.c  -fPIC -DPIC -o .libs/normalize.o
libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I.. -I. -I.. -I../src -I../lib -D_FORTIFY_SOURCE=2 -fPIC -DPIC -D_GNU_SOURCE -g -DNDEBUG -Wno-pointer-sign -Wno-enum-compare -Wno-switch -march=ivybridge -O2 -pipe -fstack-protector-strong -fno
-plt -MT normalize.lo -MD -MP -MF .deps/normalize.Tpo -c normalize.c -o normalize.o >/dev/null 2>&1
mv -f .deps/normalize.Tpo .deps/normalize.Plo
/bin/sh ../libtool  --tag=CC   --mode=link gcc -fPIC -DPIC -D_GNU_SOURCE -g -DNDEBUG -Wno-pointer-sign -Wno-enum-compare -Wno-switch -march=ivybridge -O2 -pipe -fstack-protector-strong -fno-plt -Wl,-z,relro -Wl,-O1,--sort-common,--as-nee
ded,-z,relro,-z,now -o libauparse.la -rpath /usr/lib lru.lo interpret.lo nvlist.lo ellist.lo auparse.lo auditd-config.lo message.lo data_buf.lo strsplit.lo expression.lo normalize.lo normalize-llist.lo  ../lib/libaudit.la
libtool: link: rm -fr  .libs/libauparse.a .libs/libauparse.la .libs/libauparse.lai .libs/libauparse.so .libs/libauparse.so.0 .libs/libauparse.so.0.0.0
libtool: link: gcc -shared  -fPIC -DPIC  .libs/lru.o .libs/interpret.o .libs/nvlist.o .libs/ellist.o .libs/auparse.o .libs/auditd-config.o .libs/message.o .libs/data_buf.o .libs/strsplit.o .libs/expression.o .libs/normalize.o .libs/normalize-llist.o   -Wl,-rpath -Wl,/home/bullshark/Desktop/audit/src/audit-2.8.5/lib/.libs ../lib/.libs/libaudit.so -lcap-ng  -g -march=ivybridge -O2 -fstack-protector-strong -Wl,-z -Wl,relro -Wl,-O1 -Wl,--sort-common -Wl,--as-needed -Wl,-z -Wl,relro -Wl,-z -Wl,now   -Wl,-soname -Wl,libauparse.so.0 -o .libs/libauparse.so.0.0.0
libtool: link: (cd ".libs" && rm -f "libauparse.so.0" && ln -s "libauparse.so.0.0.0" "libauparse.so.0")
libtool: link: (cd ".libs" && rm -f "libauparse.so" && ln -s "libauparse.so.0.0.0" "libauparse.so")
libtool: link: ar cru .libs/libauparse.a  lru.o interpret.o nvlist.o ellist.o auparse.o auditd-config.o message.o data_buf.o strsplit.o expression.o normalize.o normalize-llist.o
ar: `u' modifier ignored since `D' is the default (see `U')
libtool: link: ranlib .libs/libauparse.a
libtool: link: ( cd ".libs" && rm -f "libauparse.la" && ln -s "../libauparse.la" "libauparse.la" )
make[4]: Leaving directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/auparse'
make[3]: Leaving directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/auparse'
make[2]: Leaving directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/auparse'
Making all in src/libev
make[2]: Entering directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/src/libev'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/src/libev'
Making all in src
make[2]: Entering directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/src'
Making all in test
make[3]: Entering directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/src/test'
make[3]: Nothing to be done for 'all'.
make[3]: Leaving directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/src/test'
make[3]: Entering directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/src'
/bin/sh ../libtool  --tag=CC   --mode=link gcc -D_GNU_SOURCE -Wno-pointer-sign -march=ivybridge -O2 -pipe -fstack-protector-strong -fno-plt  -Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now -o aureport aureport.o auditd-config.o ausearch-llist.o aureport-options.o ausearch-string.o ausearch-parse.o aureport-scan.o aureport-output.o ausearch-lookup.o ausearch-int.o ausearch-time.o ausearch-nvpair.o ausearch-avc.o ausearch-lol.o -L../lib -laudit -L../auparse -lauparse
libtool: link: gcc -D_GNU_SOURCE -Wno-pointer-sign -march=ivybridge -O2 -pipe -fstack-protector-strong -fno-plt -Wl,-O1 -Wl,--sort-common -Wl,--as-needed -Wl,-z -Wl,relro -Wl,-z -Wl,now -o .libs/aureport aureport.o auditd-config.o ausearch-llist.o aureport-options.o ausearch-string.o ausearch-parse.o aureport-scan.o aureport-output.o ausearch-lookup.o ausearch-int.o ausearch-time.o ausearch-nvpair.o ausearch-avc.o ausearch-lol.o  -L../lib -L../auparse /home/bullshark/Desktop/audit/src/audit-2.8.5/auparse/.libs/libauparse.so /home/bullshark/Desktop/audit/src/audit-2.8.5/lib/.libs/libaudit.so -lcap-ng
/usr/bin/ld: ausearch-llist.o:(.bss+0x0): multiple definition of `event_node_list'; aureport.o:(.bss+0x28): first defined here
/usr/bin/ld: aureport-options.o:(.bss+0xa0): multiple definition of `event_node_list'; aureport.o:(.bss+0x28): first defined here
/usr/bin/ld: ausearch-parse.o:(.bss+0x0): multiple definition of `event_node_list'; aureport.o:(.bss+0x28): first defined here
/usr/bin/ld: aureport-scan.o:(.bss+0x1f8): multiple definition of `event_node_list'; aureport.o:(.bss+0x28): first defined here
/usr/bin/ld: aureport-output.o:(.bss+0x8): multiple definition of `event_node_list'; aureport.o:(.bss+0x28): first defined here
/usr/bin/ld: ausearch-lookup.o:(.bss+0x0): multiple definition of `event_node_list'; aureport.o:(.bss+0x28): first defined here
/usr/bin/ld: ausearch-time.o:(.bss+0x10): multiple definition of `event_node_list'; aureport.o:(.bss+0x28): first defined here
/usr/bin/ld: ausearch-lol.o:(.bss+0x28): multiple definition of `event_node_list'; aureport.o:(.bss+0x28): first defined here
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:584: aureport] Error 1
make[3]: Leaving directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/src'
make[2]: *** [Makefile:828: all-recursive] Error 1
make[2]: Leaving directory '/home/bullshark/Desktop/audit/src/audit-2.8.5/src'
make[1]: *** [Makefile:467: all-recursive] Error 1
make[1]: Leaving directory '/home/bullshark/Desktop/audit/src/audit-2.8.5'
make: *** [Makefile:399: all] Error 2
==> ERROR: A failure occurred in build().
    Aborting...

Here is the rest of my /etc/makepkg.conf if it matters.

#
# /etc/makepkg.conf
#

#########################################################################
# SOURCE ACQUISITION
#########################################################################
#
#-- The download utilities that makepkg should use to acquire sources
#  Format: 'protocol::agent'
DLAGENTS=('file::/usr/bin/curl -gqC - -o %o %u'
          'ftp::/usr/bin/curl -gqfC - --ftp-pasv --retry 3 --retry-delay 3 -o %o %u'
          'http::/usr/bin/curl -gqb "" -fLC - --retry 3 --retry-delay 3 -o %o %u'
          'https::/usr/bin/curl -gqb "" -fLC - --retry 3 --retry-delay 3 -o %o %u'
          'rsync::/usr/bin/rsync --no-motd -z %u %o'
          'scp::/usr/bin/scp -C %u %o')

# Other common tools:
# /usr/bin/snarf
# /usr/bin/lftpget -c
# /usr/bin/wget

#-- The package required by makepkg to download VCS sources
#  Format: 'protocol::package'
VCSCLIENTS=('bzr::bzr'
            'git::git'
            'hg::mercurial'
            'svn::subversion')

#########################################################################
# ARCHITECTURE, COMPILE FLAGS
#########################################################################
#
CARCH="x86_64"
CHOST="x86_64-pc-linux-gnu"

#-- Compiler and Linker Flags
# -march (or -mcpu) builds exclusively for an architecture
# -mtune optimizes for an architecture, but builds for whole processor family
CPPFLAGS="-D_FORTIFY_SOURCE=2"
CFLAGS="-march=ivybridge -O2 -pipe -fstack-protector-strong -fno-plt"
CXXFLAGS="-march=ivybridge -O2 -pipe -fstack-protector-strong -fno-plt"
LDFLAGS="-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now"
#-- Make Flags: change this for DistCC/SMP systems
#MAKEFLAGS="-j$(($(nproc)+1))"
MAKEFLAGS="-j3"
#-- Debugging flags
DEBUG_CFLAGS="-g -fvar-tracking-assignments"
DEBUG_CXXFLAGS="-g -fvar-tracking-assignments"

#########################################################################
# BUILD ENVIRONMENT
#########################################################################
#
# Defaults: BUILDENV=(!distcc color !ccache check !sign)
#  A negated environment option will do the opposite of the comments below.
#
#-- distcc:   Use the Distributed C/C++/ObjC compiler
#-- color:    Colorize output messages
#-- ccache:   Use ccache to cache compilation
#-- check:    Run the check() function if present in the PKGBUILD
#-- sign:     Generate PGP signature file
#
BUILDENV=(!distcc color !ccache check !sign)
#
#-- If using DistCC, your MAKEFLAGS will also need modification. In addition,
#-- specify a space-delimited list of hosts running in the DistCC cluster.
#DISTCC_HOSTS=""
#
#-- Specify a directory for package building.
#BUILDDIR=/tmp/makepkg

#########################################################################
# GLOBAL PACKAGE OPTIONS
#   These are default values for the options=() settings
#########################################################################
#
# Default: OPTIONS=(!strip docs libtool staticlibs emptydirs !zipman !purge !debug)
#  A negated option will do the opposite of the comments below.
#
#-- strip:      Strip symbols from binaries/libraries
#-- docs:       Save doc directories specified by DOC_DIRS
#-- libtool:    Leave libtool (.la) files in packages
#-- staticlibs: Leave static library (.a) files in packages
#-- emptydirs:  Leave empty directories in packages
#-- zipman:     Compress manual (man and info) pages in MAN_DIRS with gzip
#-- purge:      Remove files specified by PURGE_TARGETS
#-- debug:      Add debugging flags as specified in DEBUG_* variables
#
OPTIONS=(strip docs !libtool !staticlibs emptydirs zipman purge !debug)

#-- File integrity checks to use. Valid: md5, sha1, sha256, sha384, sha512
INTEGRITY_CHECK=(md5)
#-- Options to be used when stripping binaries. See `man strip' for details.
STRIP_BINARIES="--strip-all"
#-- Options to be used when stripping shared libraries. See `man strip' for details.
STRIP_SHARED="--strip-unneeded"
#-- Options to be used when stripping static libraries. See `man strip' for details.
STRIP_STATIC="--strip-debug"
#-- Manual (man and info) directories to compress (if zipman is specified)
MAN_DIRS=({usr{,/local}{,/share},opt/*}/{man,info})
#-- Doc directories to remove (if !docs is specified)
DOC_DIRS=(usr/{,local/}{,share/}{doc,gtk-doc} opt/*/{doc,gtk-doc})
#-- Files to be removed from all packages (if purge is specified)
PURGE_TARGETS=(usr/{,share}/info/dir .packlist *.pod)
#-- Directory to store source code in for debug packages
DBGSRCDIR="/usr/src/debug"

#########################################################################
# PACKAGE OUTPUT
#########################################################################
#
# Default: put built package and cached source in build directory
#
#-- Destination: specify a fixed directory where all packages will be placed
#PKGDEST=/home/packages
#-- Source cache: specify a fixed directory where source files will be cached
#SRCDEST=/home/sources
#-- Source packages: specify a fixed directory where all src packages will be placed
#SRCPKGDEST=/home/srcpackages
#-- Log files: specify a fixed directory where all log files will be placed
#LOGDEST=/home/makepkglogs
#-- Packager: name/email of the person or organization building packages
#PACKAGER="John Doe <john@doe.com>"
#-- Specify a key to use for package signing
#GPGKEY=""

#########################################################################
# COMPRESSION DEFAULTS
#########################################################################
#
COMPRESSGZ=(gzip -c -f -n)
COMPRESSBZ2=(bzip2 -c -f)
COMPRESSXZ=(xz -c -z -)
COMPRESSZST=(zstd -c -z -q -)
COMPRESSLRZ=(lrzip -q)
COMPRESSLZO=(lzop -q)
COMPRESSZ=(compress -c -f)
COMPRESSLZ4=(lz4 -q)
COMPRESSLZ=(lzip -c -f)

#########################################################################
# EXTENSION DEFAULTS
#########################################################################
#
PKGEXT='.pkg.tar.xz'
SRCEXT='.src.tar.gz'

Update:

I just applied this patch, added extern, and it compiles fine. It's needed when compiling with gcc version 10.

src/ausearch-common.h
-slist *event_node_list;
+extern slist *event_node_list;

The src/rules are still not being included in the package.

All of these files are being excluded from the package, but this doesn't happen on other distros such as Fedora. https://github.com/linux-audit/audit-userspace/tree/master/rules

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