Imported Upstream version 0.3.5

[debian/uanytun.git] / src / configure

diff --git a/src/configure b/src/configure
index ee80582..16d5cc7 100755 (executable)
--- a/src/configure
+++ b/src/configure
@@ -11,12 +11,12 @@
 #  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
 #  mode and allows tunneling of every ETHER TYPE protocol (e.g.
 #  ethernet, ip, arp ...). satp directly includes cryptography and
-#  message authentication based on the methodes used by SRTP.  It is
+#  message authentication based on the methods used by SRTP.  It is
 #  intended to deliver a generic, scaleable and secure solution for
 #  tunneling and relaying of packets of any protocol.
-#  
 #
-#  Copyright (C) 2007-2010 Christian Pointner <equinox@anytun.org>
+#
+#  Copyright (C) 2007-2014 Christian Pointner <equinox@anytun.org>
 #
 #  This file is part of uAnytun.
 #
@@ -33,13 +33,24 @@
 #  You should have received a copy of the GNU General Public License
 #  along with uAnytun. If not, see <http://www.gnu.org/licenses/>.
 #
+#   In addition, as a special exception, the copyright holders give
+#   permission to link the code of portions of this program with the
+#   OpenSSL library under certain conditions as described in each
+#   individual source file, and distribute linked combinations
+#   including the two.
+#   You must obey the GNU General Public License in all respects
+#   for all of the code used other than OpenSSL.  If you modify
+#   file(s) with this exception, you may extend this exception to your
+#   version of the file(s), but you are not obligated to do so.  If you
+#   do not wish to do so, delete this exception statement from your
+#   version.  If you delete this exception statement from all source
+#   files in the program, then also delete it here.
+#
 
 TARGET=`uname -s`
-
 EBUILD_COMPAT=0
 
-CFLAGS='-g -O2'
-LDFLAGS='-g -Wall -O2'
+USE_CLANG=0
 
 CRYPTO_LIB='gcrypt'
 PASSPHRASE=1
@@ -62,10 +73,13 @@ print_usage() {
   echo "          --no-manpage              dont't install manpage"
   echo "          --examplesdir=<DIR>       the path to the examples files (default: $PREFIX/share/examples)"
   echo "          --no-examples             dont't install example files"
-  echo "          --use-ssl-crypto          use ssl crypto library instead of libgcrypt"
+  echo "          --use-gcrypt              use libgcrypt (this is the default)"
+  echo "          --use-nettle              use libnettle instead of libgcrypt"
+  echo "          --use-ssl-crypto          use openssl crypto library instead of libgcrypt"
   echo "          --no-crypto               disable crypto at all (only NULL cipher)"
   echo "          --disable-passphrase      disable master key and salt passphrase"
   echo "          --enable-passphrase       enable master key and salt passphrase"
+  echo "          --use-clang               use clang/llvm as compiler/linker"
 }
 
 for arg
@@ -74,6 +88,9 @@ do
   --target=*)
     TARGET=${arg#--target=}
   ;;
+  --use-clang)
+    USE_CLANG=1
+  ;;
   --prefix=*)
     PREFIX=${arg#--prefix=}
   ;;
@@ -95,12 +112,18 @@ do
   --no-examples)
     INSTALLEXAMPLES=0
   ;;
+  --use-gcrypt)
+    CRYPTO_LIB='gcrypt'
+  ;;
+  --use-nettle)
+    CRYPTO_LIB='nettle'
+  ;;
   --use-ssl-crypto)
     CRYPTO_LIB='ssl'
   ;;
   --no-crypto)
     CRYPTO_LIB='none'
-  ;; 
+  ;;
   --disable-passphrase)
     PASSPHRASE=0
   ;;
@@ -129,9 +152,19 @@ if [ -n "$ERRORS" ] && [ $EBUILD_COMPAT -ne 1 ]; then
   exit 1
 fi
 
+if [ $USE_CLANG -eq 0 ]; then
+  CFLAGS='-g -Wall -O2'
+  LDFLAGS='-g -Wall -O2'
+  COMPILER='gcc'
+else
+  CFLAGS='-g -O2'
+  LDFLAGS='-g -O2'
+  COMPILER='clang'
+fi
+
 rm -f version.h
 rm -f include.mk
-case $TARGET in 
+case $TARGET in
   Linux)
     rm -f tun.c
     ln -sf linux/tun.c
@@ -153,8 +186,14 @@ esac
 
 case $CRYPTO_LIB in
   gcrypt)
+    CFLAGS=$CFLAGS' -DUSE_GCRYPT'
     LDFLAGS=$LDFLAGS' -lgcrypt'
-    echo "using libgcrypt library"
+    echo "using gcrypt library"
+  ;;
+  nettle)
+    CFLAGS=$CFLAGS' -DUSE_NETTLE'
+    LDFLAGS=$LDFLAGS' -lnettle'
+    echo "using nettle library"
   ;;
   ssl)
     CFLAGS=$CFLAGS' -DUSE_SSL_CRYPTO'
@@ -163,7 +202,6 @@ case $CRYPTO_LIB in
   ;;
   none)
     CFLAGS=$CFLAGS' -DNO_CRYPT'
-    echo "NO_CRYPT_OBJ = 1" >> include.mk
     echo "disabling crypto"
   ;;
 esac
@@ -189,13 +227,13 @@ if [ -z "$EXAMPLESDIR" ]; then
   EXAMPLESDIR=$PREFIX/share/examples
 fi
 
-cat >> include.mk <<EOF
+cat > include.mk <<EOF
 # this file was created automatically
-# do not edit this file directly 
+# do not edit this file directly
 # use ./configure instead
 
 TARGET := $TARGET
-CC := gcc
+CC := $COMPILER
 CFLAGS := $CFLAGS
 LDFLAGS := $LDFLAGS
 STRIP := strip
@@ -206,6 +244,10 @@ SBINDIR := $SBINDIR
 ETCDIR := $ETCDIR
 EOF
 
+if [ $CRYPTO_LIB = "none" ]; then
+  echo "NO_CRYPT_OBJ = 1" >> include.mk
+fi
+
 if [ $INSTALLMANPAGE -eq 1 ]; then
   echo "MANDIR := $MANDIR" >> include.mk
   echo "installing manpage"
@@ -222,7 +264,7 @@ fi
 
 VERSION=`cat ../version`
 if which svn >/dev/null; then
-  SVN_REV=`svn info | grep "^Revision: " | awk '{print($2)}'`
+  SVN_REV=`svn info 2> /dev/null | grep "^Revision: " | awk '{print($2)}'`
   if [ -n "$SVN_REV" ]; then
     VERSION="$VERSION (svn$SVN_REV)"
   fi
@@ -230,8 +272,8 @@ fi
 HOSTNAME=`hostname`
 DATE=`date +"%d.%m.%Y %H:%M:%S %Z"`
 
-cat >> version.h <<EOF
-/* 
+cat > version.h <<EOF
+/*
  * uanytun version info
  *
  * this file was created automatically