Added configure and autogen.sh

Makefile.in

@@ -1,6 +1,5 @@
 
-N2N_VERSION=2.5.0
-N2N_OSNAME=$(shell uname -p)
+N2N_VERSION=@N2N_VERSION@
 
 ########
 
@@ -13,19 +12,11 @@ WARN?=-Wall -Wshadow -Wpointer-arith -Wmissing-declarations -Wnested-externs
 #(thanks to Robert Gibbon)
 PLATOPTS_SPARC64=-mcpu=ultrasparc -pipe -fomit-frame-pointer -ffast-math -finline-functions -fweb -frename-registers -mapp-regs
 
-N2N_DEFINES=
 N2N_OBJS_OPT=
-LIBS_EDGE_OPT=
+LIBS_EDGE_OPT=@N2N_LIBS@
 
-N2N_OPTION_AES?="yes"
-#N2N_OPTION_AES=no
 
-ifeq ($(N2N_OPTION_AES), "yes")
-    N2N_DEFINES+=-DN2N_HAVE_AES
-    LIBS_EDGE_OPT+=-lcrypto
-endif
-
-CFLAGS+=$(DEBUG) $(OPTIMIZATION) $(WARN) $(OPTIONS) $(PLATOPTS) $(N2N_DEFINES)
+CFLAGS+=$(DEBUG) $(OPTIMIZATION) $(WARN) $(OPTIONS) $(PLATOPTS)
 
 INSTALL=install
 MKDIR=mkdir -p
@@ -97,7 +88,7 @@ $(N2N_LIB): $(N2N_OBJS)
 #	$(RANLIB) $@
 
 version.o: Makefile
-	$(CC) $(CFLAGS) -DN2N_VERSION='"$(N2N_VERSION)"' -DN2N_OSNAME='"$(N2N_OSNAME)"' -c version.c
+	$(CC) $(CFLAGS) -c version.c
 
 clean:
 	rm -rf $(N2N_OBJS) $(N2N_LIB) $(APPS) $(DOCS) test *.dSYM *~

configure.ac

@@ -0,0 +1,51 @@
+odnl> Do not add anything above
+AC_INIT([edge],2.5.0)
+dnl> Do not add anything above
+
+N2N_VERSION=2.5.0
+
+AC_CHECK_LIB([crypto], [AES_cbc_encrypt])
+
+N2N_LIBS=
+
+if test "x$ac_cv_lib_crypto_AES_cbc_encrypt" != xyes; then
+  AC_MSG_RESULT(Building n2n without AES support)
+else
+  AC_DEFINE([N2N_HAVE_AES], [], [Have AES support])
+  N2N_LIBS=-lcrypto
+fi
+
+MACHINE=`uname -m`
+SYSTEM=`uname -s`
+
+if test $SYSTEM = "Linux"; then
+   if test -f /etc/debian_version; then
+      DEBIAN_VERSION=`cat /etc/debian_version`
+      OSNAME="Debian $DEBIAN_VERSION"
+   else
+      OSNAME=`./config.guess`
+   fi
+else
+dnl> wget -O config.guess 'http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD'
+   OSNAME=`./config.guess`
+fi
+AC_DEFINE_UNQUOTED(PACKAGE_OSNAME, "${OSNAME}", [OS name])
+
+if test $MACHINE = "x86_64"; then
+   EXTN="amd64"
+else
+   if test $MACHINE = "i686"; then
+     EXTN="i386"
+   fi
+fi
+
+DATE=`date +"%Y-%m-%d"`
+
+AC_SUBST(N2N_VERSION)
+AC_SUBST(N2N_DEFINES)
+AC_SUBST(N2N_LIBS)
+AC_CONFIG_HEADERS(config.h)
+AC_CONFIG_FILES(Makefile)
+
+AC_OUTPUT
+

n2n.h

@@ -41,6 +41,8 @@
 #undef N2N_HAVE_SETUID
 #endif
 
+#include "config.h"
+
 #include <time.h>
 #include <ctype.h>
 #include <stdlib.h>

version.c

@@ -1,3 +1,5 @@
-const char * n2n_sw_version   = N2N_VERSION;
-const char * n2n_sw_osName    = N2N_OSNAME;
+#include "config.h"
+
+const char * n2n_sw_version   = PACKAGE_VERSION;
+const char * n2n_sw_osName    = PACKAGE_OSNAME;
 const char * n2n_sw_buildDate = __DATE__ " " __TIME__;