diff --git a/Mk/bsd.port.mk b/Mk/bsd.port.mk
index 0fe16fa5426d..14fe2bcd8b8d 100644
--- a/Mk/bsd.port.mk
+++ b/Mk/bsd.port.mk
@@ -4541,7 +4541,10 @@ generate-plist: ${WRKDIR}
 	@${MKDIR} ${TMPPLIST:H}
 	@if [ ! -f ${DESCR} ]; then ${ECHO_MSG} "** Missing pkg-descr for ${PKGNAME}."; exit 1; fi
 	@>${TMPPLIST}
-	@for file in ${PLIST_FILES}; do \
+	@for file in ${PLIST_FILES:[1..6000]}; do \
+		${ECHO_CMD} $${file} | ${SED} ${PLIST_SUB_SANITIZED:S/$/!g/:S/^/ -e s!%%/:S/=/%%!/} >> ${TMPPLIST}; \
+	done
+	@for file in ${PLIST_FILES:[6001..${PLIST_FILES:[#]}]}; do \
 		${ECHO_CMD} $${file} | ${SED} ${PLIST_SUB_SANITIZED:S/$/!g/:S/^/ -e s!%%/:S/=/%%!/} >> ${TMPPLIST}; \
 	done
 .if !empty(PLIST)
diff --git a/math/lapack/Makefile b/math/lapack/Makefile
index 6c35bdc90a8b..992ca3025e4a 100644
--- a/math/lapack/Makefile
+++ b/math/lapack/Makefile
@@ -164,8 +164,10 @@ post-install:
 	${LN} -sf libtmglib.so.${PORTVERSION} ${STAGEDIR}${PREFIX}/lib/libtmglib.so.${SVERSION}
 .endif
 .if !(defined(BLAS_SLAVEPORT) || defined(CBLAS_SLAVEPORT) || defined(XLAPACK_SLAVEPORT) || defined(LAPACKE_SLAVEPORT))
-	cd ${WRKDIR}/man ; ${ECHO_CMD} ${MAN3L:S|^|man3/|} \
-	| ${XARGS} -J @ ${INSTALL_MAN} @ ${STAGEDIR}${MAN3PREFIX}/man/man3
+	cd ${WRKDIR}/man ; ${ECHO_CMD} ${MAN3L:[1..6000]:S|^|man3/|} \
+	| ${XARGS} -n 100 -J @ ${INSTALL_MAN} @ ${STAGEDIR}${MAN3PREFIX}/man/man3
+	cd ${WRKDIR}/man ; ${ECHO_CMD} ${MAN3L:[6001..${MAN3L:[#]}]:S|^|man3/|} \
+	| ${XARGS} -n 100 -J @ ${INSTALL_MAN} @ ${STAGEDIR}${MAN3PREFIX}/man/man3
 .endif
 
 .include <bsd.port.post.mk>