Add with/without openssl option to configure. This is useful for

	the downstream distributions of FreeRADIUS.

	Based on a patch from Mark Hymers <mhy@debian.org>

diff --git a/configure.in b/configure.in
index 754c00b..c8f59d9 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -314,6 +314,20 @@ AC_ARG_WITH(experimental-modules,
   esac ]
 )
 
+dnl extra argument: --with-openssl
+WITH_OPENSSL=yes
+AC_ARG_WITH(openssl,
+[  --with-openssl                   Use OpenSSL. (default=yes)],
+[ case "$withval" in
+    no)
+       WITH_OPENSSL=no
+       ;;
+    *)
+       WITH_OPENSSL=yes
+       ;;
+  esac ]
+)
+
 dnl #
 dnl # extra argument: --with-openssl-includes=dir
 dnl #
@@ -506,11 +520,12 @@ AC_CHECK_LIB(nsl, inet_ntoa)
 
 dnl Check for OpenSSL libraries.
 OPENSSL_LIBS=
-old_LIBS=$LIBS
-if test "x$OPENSSL_LIB_DIR" != "x"; then
+if test "x$WITH_OPENSSL" = xyes; then
+  old_LIBS=$LIBS
+  if test "x$OPENSSL_LIB_DIR" != "x"; then
     LIBS="-L$OPENSSL_LIB_DIR $LIBS"
-fi
-AC_CHECK_LIB(crypto, DH_new,
+  fi
+  AC_CHECK_LIB(crypto, DH_new,
     [
        AC_DEFINE(HAVE_LIBCRYPTO, 1,
            [Define to 1 if you have the `crypto' library (-lcrypto).])
@@ -524,7 +539,8 @@ AC_CHECK_LIB(crypto, DH_new,
                OPENSSL_LIBS="$OPENSSL_LIBS -lcrypto -lssl -lcrypto"
            ], [])
     ], [])
-LIBS=$old_LIBS
+  LIBS=$old_LIBS
+fi
 
 dnl #############################################################
 dnl #
@@ -614,9 +630,10 @@ fi
 
 dnl Check for OpenSSL includes.
 OPENSSL_INCLUDE="-DNO_OPENSSL"
-if test "x$OPENSSL_LIBS" = "x"; then
-    AC_MSG_WARN([skipping test for openssl/ssl.h])
-else
+if test "x$WITH_OPENSSL" = xyes; then
+  if test "x$OPENSSL_LIBS" = "x"; then
+    AC_MSG_NOTICE([skipping test for openssl/ssl.h])
+  else
     old_CPPFLAGS=$CPPFLAGS
     if test "x$OPENSSL_INCLUDE_DIR" != "x"; then
        CPPFLAGS="$CPPFLAGS -I$OPENSSL_INCLUDE_DIR"
@@ -652,6 +669,7 @@ else
        fi
     fi
     CPPFLAGS=$old_CPPFLAGS
+  fi
 fi
 AC_SUBST(OPENSSL_INCLUDE)
 AC_SUBST(OPENSSL_LIBS)