From 6540778e7827fbf3b2cbbec8187b6b40376dcd46 Mon Sep 17 00:00:00 2001
From: Michael Haubenwallner <michael.haubenwallner@ssi-schaefer.com>
Date: Wed, 5 Jun 2019 15:31:10 +0200
Subject: [PATCH] use -no-undefined flag with libtool

We need to tell libtool that we expect all symbols to be defined when
creating the library.  Otherwise, on platforms that do not support
undefined symbols, libtool does create the static library only.
---
 src/Makefile.am | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Makefile.am b/src/Makefile.am
index 215a434..5d56cbc 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -17,6 +17,7 @@ LDFLAGS += -version-info $(B2_LIBRARY_VERSION)
 
 lib_LTLIBRARIES = libb2.la
 libb2_la_LIBADD = # -lgomp -lpthread
+libb2_la_LDFLAGS = -no-undefined
 libb2_la_CPPFLAGS =  -DSUFFIX=  \
                      $(LTDLINCL) \
                      ${top_builddir}/src/