Index: libtcod-libtcod-b9bd7694f268/build/autotools/Makefile.am
===================================================================
--- libtcod-libtcod-b9bd7694f268/build/autotools/Makefile.am
+++ libtcod-libtcod-b9bd7694f268/build/autotools/Makefile.am	2018-05-14 10:24:19.549967745 +0200
@@ -10,6 +10,9 @@
 
 AM_LDFLAGS = $(SDL_LIBS) $(X11_LIBS) $(ZLIB_LIBS)
 
+# See https://autotools.io/libtool/version.html
+VERSION_INFO = -version-info 1:0:0
+
 
 lib_LTLIBRARIES = libtcod.la libtcodxx.la libtcodgui.la
 
@@ -32,7 +35,7 @@
 
 libtcodgui_la_CXXFLAGS = $(CXXFLAGS) -I$(top_srcdir)/../../include/gui
 libtcodgui_la_LIBADD = libtcodxx.la libtcod.la
-
+libtcodgui_la_LDFLAGS = $(AM_LDFLAGS) $(VERSION_INFO)
 
 externalincludedir = $(includedir)/libtcod/external
 externalinclude_HEADERS = \
@@ -93,6 +96,7 @@
 
 libtcod_la_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
 libtcod_la_LIBADD = $(PTHREAD_LIBS)
+libtcod_la_LDFLAGS = $(AM_LDFLAGS) $(VERSION_INFO)
 
 
 pkginclude_HEADERS = \
@@ -168,7 +172,9 @@
 	../../src/txtfield.cpp \
 	../../src/zip.cpp
 
+libtcodxx_la_CFLAGS = $(AM_CFLAGS) $(PTHREAD_CFLAGS)
 libtcodxx_la_LIBADD = libtcod.la
+libtcodxx_la_LDFLAGS = $(AM_LDFLAGS) $(VERSION_INFO)
 
 
 if ENABLE_SAMPLES