Installation of include files
diff --git a/gtp/Makefile.am b/gtp/Makefile.am
index 871a446..bacf365 100644
--- a/gtp/Makefile.am
+++ b/gtp/Makefile.am
@@ -1,5 +1,7 @@
 lib_LTLIBRARIES = libgtp.la
 
+include_HEADERS = gtp.h pdp.h
+
 CFLAGS = -O2 -fno-builtin -Wall -ansi -DSBINDIR='"$(sbindir)"' -ggdb
 
 libgtp_la_SOURCES = gtp.c gtp.h gtpie.c gtpie.h pdp.c pdp.h lookupa.c lookupa.h queue.c queue.h
diff --git a/gtp/Makefile.in b/gtp/Makefile.in
index 3a6f08e..a15b2b8 100644
--- a/gtp/Makefile.in
+++ b/gtp/Makefile.in
@@ -88,6 +88,8 @@
 install_sh = @install_sh@
 lib_LTLIBRARIES = libgtp.la
 
+include_HEADERS = gtp.h pdp.h
+
 CFLAGS = -O2 -fno-builtin -Wall -ansi -DSBINDIR='"$(sbindir)"' -ggdb
 
 libgtp_la_SOURCES = gtp.c gtp.h gtpie.c gtpie.h pdp.c pdp.h lookupa.c lookupa.h queue.c queue.h
@@ -120,7 +122,9 @@
 LINK = $(LIBTOOL) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
 	$(AM_LDFLAGS) $(LDFLAGS) -o $@
 DIST_SOURCES = $(libgtp_la_SOURCES)
-DIST_COMMON = Makefile.am Makefile.in
+HEADERS = $(include_HEADERS)
+
+DIST_COMMON = $(include_HEADERS) Makefile.am Makefile.in
 SOURCES = $(libgtp_la_SOURCES)
 
 all: all-am
@@ -206,6 +210,24 @@
 distclean-libtool:
 	-rm -f libtool
 uninstall-info-am:
+includeHEADERS_INSTALL = $(INSTALL_HEADER)
+install-includeHEADERS: $(include_HEADERS)
+	@$(NORMAL_INSTALL)
+	$(mkinstalldirs) $(DESTDIR)$(includedir)
+	@list='$(include_HEADERS)'; for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  f="`echo $$p | sed -e 's|^.*/||'`"; \
+	  echo " $(includeHEADERS_INSTALL) $$d$$p $(DESTDIR)$(includedir)/$$f"; \
+	  $(includeHEADERS_INSTALL) $$d$$p $(DESTDIR)$(includedir)/$$f; \
+	done
+
+uninstall-includeHEADERS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(include_HEADERS)'; for p in $$list; do \
+	  f="`echo $$p | sed -e 's|^.*/||'`"; \
+	  echo " rm -f $(DESTDIR)$(includedir)/$$f"; \
+	  rm -f $(DESTDIR)$(includedir)/$$f; \
+	done
 
 ETAGS = etags
 ETAGSFLAGS =
@@ -270,10 +292,10 @@
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LTLIBRARIES)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 
 installdirs:
-	$(mkinstalldirs) $(DESTDIR)$(libdir)
+	$(mkinstalldirs) $(DESTDIR)$(libdir) $(DESTDIR)$(includedir)
 
 install: install-am
 install-exec: install-exec-am
@@ -317,7 +339,7 @@
 
 info-am:
 
-install-data-am:
+install-data-am: install-includeHEADERS
 
 install-exec-am: install-libLTLIBRARIES
 
@@ -336,19 +358,21 @@
 mostlyclean-am: mostlyclean-compile mostlyclean-generic \
 	mostlyclean-libtool
 
-uninstall-am: uninstall-info-am uninstall-libLTLIBRARIES
+uninstall-am: uninstall-includeHEADERS uninstall-info-am \
+	uninstall-libLTLIBRARIES
 
 .PHONY: GTAGS all all-am check check-am clean clean-generic \
 	clean-libLTLIBRARIES clean-libtool distclean distclean-compile \
 	distclean-depend distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am info info-am install \
 	install-am install-data install-data-am install-exec \
-	install-exec-am install-info install-info-am \
-	install-libLTLIBRARIES install-man install-strip installcheck \
-	installcheck-am installdirs maintainer-clean \
-	maintainer-clean-generic mostlyclean mostlyclean-compile \
-	mostlyclean-generic mostlyclean-libtool tags uninstall \
-	uninstall-am uninstall-info-am uninstall-libLTLIBRARIES
+	install-exec-am install-includeHEADERS install-info \
+	install-info-am install-libLTLIBRARIES install-man \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	tags uninstall uninstall-am uninstall-includeHEADERS \
+	uninstall-info-am uninstall-libLTLIBRARIES
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.