build: Add -no-undefined libtool flag We have no need for undefined symbols, so we can let the shared library build even on systems without support for undefined symbols.
diff --git a/src/Makefile.am b/src/Makefile.am
index 64a8918..b892ab8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -59,6 +59,7 @@ libbsd_la_LIBADD = \
$(LIBBSD_LIBS) \
# EOL
libbsd_la_LDFLAGS = \
+ -no-undefined \
-version-number $(LIBBSD_ABI) \
# EOL
if HAVE_LINKER_VERSION_SCRIPT