diff --git a/Makefile.am b/Makefile.am
index 0e7c16d..cecd9cd 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -4,7 +4,7 @@
 
 EXTRA_DIST = makefile.vc nmake.opt mainpage.doxy
 
-AUTOMAKE_OPTIONS = dist-zip
+AUTOMAKE_OPTIONS = dist-zip foreign
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = readosm.pc
diff --git a/Makefile.in b/Makefile.in
index db2a462..6eb11ea 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -360,7 +360,7 @@
 ACLOCAL_AMFLAGS = -I m4
 SUBDIRS = headers src tests examples
 EXTRA_DIST = makefile.vc nmake.opt mainpage.doxy
-AUTOMAKE_OPTIONS = dist-zip
+AUTOMAKE_OPTIONS = dist-zip foreign
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = readosm.pc
 MOSTLYCLEANFILES = readosm_cov.info 
@@ -374,15 +374,15 @@
 	@for dep in $?; do \
 	  case '$(am__configure_deps)' in \
 	    *$$dep*) \
-	      echo ' cd $(srcdir) && $(AUTOMAKE) --gnu'; \
-	      $(am__cd) $(srcdir) && $(AUTOMAKE) --gnu \
+	      echo ' cd $(srcdir) && $(AUTOMAKE) --foreign'; \
+	      $(am__cd) $(srcdir) && $(AUTOMAKE) --foreign \
 		&& exit 0; \
 	      exit 1;; \
 	  esac; \
 	done; \
-	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu Makefile'; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign Makefile'; \
 	$(am__cd) $(top_srcdir) && \
-	  $(AUTOMAKE) --gnu Makefile
+	  $(AUTOMAKE) --foreign Makefile
 Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	@case '$?' in \
 	  *config.status*) \
@@ -622,7 +622,7 @@
 	  ! -type d ! -perm -444 -exec $(install_sh) -c -m a+r {} {} \; \
 	|| chmod -R a+r "$(distdir)"
 dist-gzip: distdir
-	tardir=$(distdir) && $(am__tar) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).tar.gz
+	tardir=$(distdir) && $(am__tar) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).tar.gz
 	$(am__post_remove_distdir)
 
 dist-bzip2: distdir
@@ -648,7 +648,7 @@
 	@echo WARNING: "Support for shar distribution archives is" \
 	               "deprecated." >&2
 	@echo WARNING: "It will be removed altogether in Automake 2.0" >&2
-	shar $(distdir) | GZIP=$(GZIP_ENV) gzip -c >$(distdir).shar.gz
+	shar $(distdir) | eval GZIP= gzip $(GZIP_ENV) -c >$(distdir).shar.gz
 	$(am__post_remove_distdir)
 dist-zip: distdir
 	-rm -f $(distdir).zip
@@ -665,7 +665,7 @@
 distcheck: dist
 	case '$(DIST_ARCHIVES)' in \
 	*.tar.gz*) \
-	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).tar.gz | $(am__untar) ;;\
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).tar.gz | $(am__untar) ;;\
 	*.tar.bz2*) \
 	  bzip2 -dc $(distdir).tar.bz2 | $(am__untar) ;;\
 	*.tar.lz*) \
@@ -675,7 +675,7 @@
 	*.tar.Z*) \
 	  uncompress -c $(distdir).tar.Z | $(am__untar) ;;\
 	*.shar.gz*) \
-	  GZIP=$(GZIP_ENV) gzip -dc $(distdir).shar.gz | unshar ;;\
+	  eval GZIP= gzip $(GZIP_ENV) -dc $(distdir).shar.gz | unshar ;;\
 	*.zip*) \
 	  unzip $(distdir).zip ;;\
 	esac
diff --git a/configure b/configure
index e9bf569..ba05fd9 100755
--- a/configure
+++ b/configure
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for readosm 1.0.0e.
+# Generated by GNU Autoconf 2.69 for readosm 1.1.0.
 #
 # Report bugs to <a.furieri@lqt.it>.
 #
@@ -590,8 +590,8 @@
 # Identity of this package.
 PACKAGE_NAME='readosm'
 PACKAGE_TARNAME='readosm'
-PACKAGE_VERSION='1.0.0e'
-PACKAGE_STRING='readosm 1.0.0e'
+PACKAGE_VERSION='1.1.0'
+PACKAGE_STRING='readosm 1.1.0'
 PACKAGE_BUGREPORT='a.furieri@lqt.it'
 PACKAGE_URL=''
 
@@ -1326,7 +1326,7 @@
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures readosm 1.0.0e to adapt to many kinds of systems.
+\`configure' configures readosm 1.1.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1396,7 +1396,7 @@
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of readosm 1.0.0e:";;
+     short | recursive ) echo "Configuration of readosm 1.1.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1508,7 +1508,7 @@
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-readosm configure 1.0.0e
+readosm configure 1.1.0
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2052,7 +2052,7 @@
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by readosm $as_me 1.0.0e, which was
+It was created by readosm $as_me 1.1.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2923,7 +2923,7 @@
 
 # Define the identity of the package.
  PACKAGE='readosm'
- VERSION='1.0.0e'
+ VERSION='1.1.0'
 
 
 cat >>confdefs.h <<_ACEOF
@@ -17676,7 +17676,7 @@
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by readosm $as_me 1.0.0e, which was
+This file was extended by readosm $as_me 1.1.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -17742,7 +17742,7 @@
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-readosm config.status 1.0.0e
+readosm config.status 1.1.0
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
diff --git a/configure.ac b/configure.ac
index 5cae639..97c93d9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Process this file with autoconf to produce a configure script.
 
 AC_PREREQ(2.61)
-AC_INIT(readosm, 1.0.0e, a.furieri@lqt.it)
+AC_INIT(readosm, 1.1.0, a.furieri@lqt.it)
 AC_LANG(C)
 AC_CONFIG_AUX_DIR([.])
 AC_CONFIG_MACRO_DIR([m4])
diff --git a/examples/test_osm1.c b/examples/test_osm1.c
index 8e26ba5..25211b5 100644
--- a/examples/test_osm1.c
+++ b/examples/test_osm1.c
@@ -23,7 +23,7 @@
 /
 / The Initial Developer of the Original Code is Alessandro Furieri
 / 
-/ Portions created by the Initial Developer are Copyright (C) 2012
+/ Portions created by the Initial Developer are Copyright (C) 2012-2017
 / the Initial Developer. All Rights Reserved.
 / 
 / Contributor(s):
@@ -69,6 +69,9 @@
     int i;
     const readosm_tag *tag;
 
+    if (user_data != NULL)
+	user_data = NULL;	/* silencing stupid compiler warnings */
+
 #if defined(_WIN32) || defined(__MINGW32__)
     /* CAVEAT - M$ runtime doesn't supports %lld for 64 bits */
     sprintf (buf, "%I64d", node->id);
@@ -155,6 +158,9 @@
     char buf[128];
     int i;
     const readosm_tag *tag;
+
+    if (user_data != NULL)
+	user_data = NULL;	/* silencing stupid compiler warnings */
 
 #if defined(_WIN32) || defined(__MINGW32__)
     /* CAVEAT - M$ runtime doesn't supports %lld for 64 bits */
@@ -250,6 +256,9 @@
     int i;
     const readosm_member *member;
     const readosm_tag *tag;
+
+    if (user_data != NULL)
+	user_data = NULL;	/* silencing stupid compiler warnings */
 
 #if defined(_WIN32) || defined(__MINGW32__)
     /* CAVEAT - M$ runtime doesn't supports %lld for 64 bits */
diff --git a/examples/test_osm2.c b/examples/test_osm2.c
index bff1f8e..dc46b8e 100644
--- a/examples/test_osm2.c
+++ b/examples/test_osm2.c
@@ -23,7 +23,7 @@
 /
 / The Initial Developer of the Original Code is Alessandro Furieri
 / 
-/ Portions created by the Initial Developer are Copyright (C) 2012
+/ Portions created by the Initial Developer are Copyright (C) 2012-2017
 / the Initial Developer. All Rights Reserved.
 / 
 / Contributor(s):
diff --git a/examples/test_osm3.c b/examples/test_osm3.c
index 250437d..ad42a52 100644
--- a/examples/test_osm3.c
+++ b/examples/test_osm3.c
@@ -23,7 +23,7 @@
 /
 / The Initial Developer of the Original Code is Alessandro Furieri
 / 
-/ Portions created by the Initial Developer are Copyright (C) 2012
+/ Portions created by the Initial Developer are Copyright (C) 2012-2017
 / the Initial Developer. All Rights Reserved.
 / 
 / Contributor(s):
@@ -71,6 +71,9 @@
     /* casting the USER_DATA pointer to osm_helper */
     struct osm_helper *helper = (struct osm_helper *) user_data;
 
+    if (node != NULL)
+	node = NULL;		/* silencing stupid compiler warnings */
+
     helper->read_count++;
     if (eval_abort (helper))
 	return READOSM_ABORT;
@@ -86,6 +89,9 @@
     /* casting the USER_DATA pointer to osm_helper */
     struct osm_helper *helper = (struct osm_helper *) user_data;
 
+    if (way != NULL)
+	way = NULL;		/* silencing stupid compiler warnings */
+
     helper->read_count++;
     if (eval_abort (helper))
 	return READOSM_ABORT;
@@ -100,6 +106,9 @@
 
     /* casting the USER_DATA pointer to osm_helper */
     struct osm_helper *helper = (struct osm_helper *) user_data;
+
+    if (relation != NULL)
+	relation = NULL;	/* silencing stupid compiler warnings */
 
     helper->read_count++;
     if (eval_abort (helper))
diff --git a/headers/readosm.h b/headers/readosm.h
index 86d8d37..de41e54 100644
--- a/headers/readosm.h
+++ b/headers/readosm.h
@@ -3,7 +3,7 @@
 /
 / public declarations
 /
-/ version  1.0, 2012 April 10
+/ version  1.1.0, 2017 September 25
 /
 / Author: Sandro Furieri a.furieri@lqt.it
 /
@@ -25,7 +25,7 @@
 /
 / The Initial Developer of the Original Code is Alessandro Furieri
 / 
-/ Portions created by the Initial Developer are Copyright (C) 2012
+/ Portions created by the Initial Developer are Copyright (C) 2012-2017
 / the Initial Developer. All Rights Reserved.
 / 
 / Contributor(s):
@@ -283,7 +283,7 @@
      Close the .osm or .pbf file and release any allocated resource
 
     \param osm_handle the handle previously returned by readosm_open()
-\param user_data pointer to some user-supplied data struct
+	\param user_data pointer to some user-supplied data struct
 	\param node_fnct pointer to callback function intended to consume NODE objects 
 	(may be NULL if processing NODEs is not an interesting option)
 	\param way_fnct pointer to callback function intended to consume WAY objects 
@@ -303,6 +303,27 @@
 				       readosm_way_callback way_fnct,
 				       readosm_relation_callback relation_fnct);
 
+    /**
+     Return the current ReadOSM version
+     
+     \return a text string corresponding the current ReadOSM version
+	*/
+    READOSM_DECLARE const char * readosm_version (void);
+
+    /**
+     Return the current libexpat version used by ReadOSM
+     
+     \return a text string corresponding the current Expat version
+	*/
+    READOSM_DECLARE const char * readosm_expat_version (void);
+
+    /**
+     Return the current zlib version used by ReadOSM
+     
+     \return a text string corresponding the current zlib version
+	*/
+    READOSM_DECLARE const char * readosm_zlib_version (void);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/makefile.vc b/makefile.vc
index 5b1d4df..791aedf 100644
--- a/makefile.vc
+++ b/makefile.vc
@@ -24,8 +24,8 @@
 	link /debug /dll /out:$(READOSM_DLL) \
 		/implib:readosm_i.lib $(LIBOBJ) \
 		C:\OSGeo4w\lib\libexpat.lib C:\OSGeo4w\lib\zlib.lib
-	if exist $(FREEXL_DLL).manifest mt -manifest \
-		$(FREEXL_DLL).manifest -outputresource:$(FREEXL_DLL);2 
+	if exist $(READOSM_DLL).manifest mt -manifest \
+		$(READOSM_DLL).manifest -outputresource:$(READOSM_DLL);2 
 		
 .c.obj:
 	$(CC) $(CFLAGS) /c $*.c /Fo$@
diff --git a/src/Makefile.am b/src/Makefile.am
index fb93dcc..6084ad7 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -7,6 +7,6 @@
 libreadosm_la_SOURCES = readosm.c osm_objects.c osmxml.c protobuf.c
 
 libreadosm_la_CFLAGS = -fvisibility=hidden
-libreadosm_la_LDFLAGS = -version-info 1:0:0 -no-undefined
+libreadosm_la_LDFLAGS = -version-info 1:1:0 -no-undefined
 
 MOSTLYCLEANFILES = *.gcna *.gcno *.gcda
diff --git a/src/Makefile.in b/src/Makefile.in
index 5a3fd01..3b449f8 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -329,7 +329,7 @@
 lib_LTLIBRARIES = libreadosm.la 
 libreadosm_la_SOURCES = readosm.c osm_objects.c osmxml.c protobuf.c
 libreadosm_la_CFLAGS = -fvisibility=hidden
-libreadosm_la_LDFLAGS = -version-info 1:0:0 -no-undefined
+libreadosm_la_LDFLAGS = -version-info 1:1:0 -no-undefined
 MOSTLYCLEANFILES = *.gcna *.gcno *.gcda
 all: all-am
 
diff --git a/src/osmxml.c b/src/osmxml.c
index 32307f7..f331832 100644
--- a/src/osmxml.c
+++ b/src/osmxml.c
@@ -3,7 +3,7 @@
 /
 / OSM-XML (.osm) implementation
 /
-/ version  1.0, 2012 April 21
+/ version  1.1.0, 2017 September 25
 /
 / Author: Sandro Furieri a.furieri@lqt.it
 /
@@ -25,7 +25,7 @@
 /
 / The Initial Developer of the Original Code is Alessandro Furieri
 / 
-/ Portions created by the Initial Developer are Copyright (C) 2012
+/ Portions created by the Initial Developer are Copyright (C) 2012-2017
 / the Initial Developer. All Rights Reserved.
 / 
 / Contributor(s):
@@ -523,3 +523,14 @@
 
     return READOSM_OK;
 }
+
+READOSM_DECLARE const char *
+readosm_expat_version (void)
+{
+/* returning the current Expat version string */
+    XML_Expat_Version expat;
+    static char version[64];
+    expat = XML_ExpatVersionInfo ();
+    sprintf (version, "%d.%d.%d", expat.major, expat.minor, expat.micro);
+    return version;
+}
diff --git a/src/protobuf.c b/src/protobuf.c
index b63c59d..5b76caf 100644
--- a/src/protobuf.c
+++ b/src/protobuf.c
@@ -3,7 +3,7 @@
 /
 / Protocol Buffer (.pbf) implementation
 /
-/ version  1.0, 2012 April 21
+/ version  1.1.0, 2017 September 25
 /
 / Author: Sandro Furieri a.furieri@lqt.it
 /
@@ -25,7 +25,7 @@
 /
 / The Initial Developer of the Original Code is Alessandro Furieri
 / 
-/ Portions created by the Initial Developer are Copyright (C) 2012
+/ Portions created by the Initial Developer are Copyright (C) 2012-2017
 / the Initial Developer. All Rights Reserved.
 / 
 / Contributor(s):
@@ -2459,3 +2459,10 @@
       }
     return READOSM_OK;
 }
+
+READOSM_DECLARE const char *
+readosm_zlib_version (void)
+{
+/* returning the current zlib version string */
+    return zlibVersion ();
+}
diff --git a/src/readosm.c b/src/readosm.c
index c7884e7..e1dda27 100644
--- a/src/readosm.c
+++ b/src/readosm.c
@@ -3,7 +3,7 @@
 /
 / ReadOSM main implementation (externally visible API)
 /
-/ version  1.0, 2012 April 10
+/ version  1.1.0, 2017 September 25
 /
 / Author: Sandro Furieri a.furieri@lqt.it
 /
@@ -25,7 +25,7 @@
 /
 / The Initial Developer of the Original Code is Alessandro Furieri
 / 
-/ Portions created by the Initial Developer are Copyright (C) 2012
+/ Portions created by the Initial Developer are Copyright (C) 2012-2017
 / the Initial Developer. All Rights Reserved.
 / 
 / Contributor(s):
@@ -50,6 +50,7 @@
 
 #if defined(_WIN32) && !defined(__MINGW32__)
 /* MSVC: avoiding to include at all config.h */
+#define VERSION	1.1.0
 #else
 #include "config.h"
 #endif
@@ -184,3 +185,10 @@
 
     return ret;
 }
+
+READOSM_DECLARE const char *
+readosm_version (void)
+{
+/* returning the current ReadOSM version string */
+    return VERSION;
+}