Common subdirectories: texlive-base.orig/files and texlive-base/files
diff -u texlive-base.orig/Makefile texlive-base/Makefile
--- texlive-base.orig/Makefile	2018-01-18 07:49:27.000000000 +1300
+++ texlive-base/Makefile	2018-01-18 17:26:08.967051469 +1300
@@ -28,10 +28,10 @@
 
 CONFLICTS_INSTALL=	texlive-texmf-201[234]*
 
-USE_TEX=	web2c kpathsea ptexenc tlmgr texhash-bootstrap
 USES=		compiler:c++11-lib ghostscript pkgconfig perl5 \
 		python:run shebangfix tar:xz
 USE_PERL5=	run
+USE_TEX=	web2c kpathsea ptexenc tlmgr texhash-bootstrap
 # during build phase gnu configure is run a lot
 MAKE_ENV+=	CONFIG_SITE=${CONFIG_SITE}
 EXCLUDE_FILES=	${DISTNAME}/texk/web2c \
@@ -140,7 +140,11 @@
 	${INSTALL_DATA} ${STAGEDIR}${PREFIX}/${TEXMFDISTDIR}/web2c/fmtutil.cnf \
 	    ${STAGEDIR}${PREFIX}/${FMTUTIL_CNF}
 
-post-install: post-install-fmtutil
+post-install-tex-font-search:
+	${INSTALL_DATA} -d ${STAGEDIR}${PREFIX}/etc/fonts/conf.d
+	${INSTALL_DATA} files/09-texlive-fontconfig.conf ${STAGEDIR}${PREFIX}/etc/fonts/conf.d/
+
+post-install: post-install-fmtutil post-install-tex-font-search
 .ORDER: post-install-fmtutil do-texhash
 
 .include <bsd.port.mk>
Only in texlive-base: pkg-install
diff -u texlive-base.orig/pkg-plist texlive-base/pkg-plist
--- texlive-base.orig/pkg-plist	2015-09-26 09:42:25.000000000 +1200
+++ texlive-base/pkg-plist	2018-01-18 17:11:26.624166981 +1300
@@ -242,6 +242,7 @@
 bin/vpl2ovp
 bin/vpl2vpl
 bin/yplan
+etc/fonts/conf.d/09-texlive-fontconfig.conf
 man/man1/afm2pl.1.gz
 man/man1/allcm.1.gz
 man/man1/allec.1.gz