From a83126fc2373e838cae4a7cc41b5ad572fcc877d Mon Sep 17 00:00:00 2001
From: Olaf Meeuwissen <paddy-hack@member.fsf.org>
Date: Sun, 7 Feb 2021 21:06:38 +0900
Subject: [PATCH] Work around missing C++ symbols for static linking scenarios

---
 frontend/Makefile.am | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/frontend/Makefile.am b/frontend/Makefile.am
index d27acf280..47c50f347 100644
--- a/frontend/Makefile.am
+++ b/frontend/Makefile.am
@@ -31,5 +31,18 @@ test_LDADD = ../lib/liblib.la ../backend/libsane.la
 tstbackend_SOURCES = tstbackend.c
 tstbackend_LDADD = ../lib/liblib.la ../backend/libsane.la
 
+if preloadable_backends_enabled
+if WITH_GENESYS_TESTS
+##  Because the genesys backend is implemented in C++, programs need
+##  to link against the standard C++ library.  The work-around below
+##  will work for the GNU C++ compiler with the GNU standard library
+##  for C++.  Other build scenarios may need work.
+scanimage_LDADD += -lstdc++
+saned_LDADD += -lstdc++
+test_LDADD += -lstdc++
+tstbackend_LDADD += -lstdc++
+endif
+endif
+
 clean-local:
 	rm -f test tstbackend