[LyX/master] distribute db_*.inc files

[Kornel Benko]

commit aef74183c11e2a855fc5c875732f30ce241ba1b9
Author: Kornel Benko <kornel at lyx.org>
Date:   Wed Oct 7 12:44:20 2020 +0200

    distribute db_*.inc files
    
    Missed if using docbook5 export
---
 lib/Makefile.am |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/lib/Makefile.am b/lib/Makefile.am
index 8d42271..f2c8a0f 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -2303,6 +2303,10 @@ dist_layouts_DATA =\
 	layouts/ctex-report.layout \
 	layouts/customHeadersFooters.module \
 	layouts/db_stdcharstyles.inc \
+	layouts/db_stdclass.inc \
+	layouts/db_stdstarsections.inc \
+	layouts/db_stdstruct.inc \
+	layouts/db_stdtitle.inc \
 	layouts/dinbrief.layout \
 	layouts/docbook-book.layout \
 	layouts/docbook-chapter.layout \