include fix

Makefile.am

@@ -17,6 +17,6 @@ lib_LTLIBRARIES = libenet.la
 libenet_la_SOURCES = callbacks.c compress.c host.c list.c packet.c peer.c protocol.c unix.c win32.c
 # see info '(libtool) Updating version info' before making a release
 libenet_la_LDFLAGS = $(AM_LDFLAGS) -version-info 1:3:0
-INCLUDES = -Iinclude
+INCLUDES = -I$(top_srcdir)/include
 
 ACLOCAL_AMFLAGS = -Im4