CurveCP is optional

README.markdown

@@ -43,6 +43,9 @@ then follow the ritual:
     ./configure
     make && make check && make install
 
+[CurveCP](http://curvecp.org/) tools can be installed as well,
+provided that `--enable-curvecp` has been given to the `./configure` command.
+
 ## Comparison with vanilla NaCl
 
 Sodium does not ship C++ bindings. These might be part of a distinct

configure.ac

@@ -179,22 +179,15 @@ AC_ARG_ENABLE(blocking-random,
 [AS_HELP_STRING(--enable-blocking-random,Use /dev/random instead of /dev/urandom)],
 [AC_DEFINE([USE_BLOCKING_RANDOM], [], [Use blocking random])])
 
-AC_ARG_ENABLE(debug,
-[AS_HELP_STRING(--enable-debug,For maintainers only - please do not use)],
-[
-  AS_IF([test "x$LX_CFLAGS" = "xNONE"], [
-    nxflags=""
-    for flag in `echo $CFLAGS`; do
-      case "$flag" in
-        -O*) ;;
-        -g*) ;;
-        *) AS_VAR_APPEND([nxflags], [" $flag"]) ;;
-      esac
-    done
-    CFLAGS="$nxflags -O0 -g3"
-  ])
-  CPPFLAGS="$CPPFLAGS -DDEBUG=1"
-])
+AC_ARG_ENABLE(blocking-random,
+[AS_HELP_STRING(--enable-blocking-random,Use /dev/random instead of /dev/urandom)],
+[AC_DEFINE([USE_BLOCKING_RANDOM], [], [Use blocking random])])
+
+curvecp=disabled
+AC_ARG_ENABLE(curvecp,
+[AS_HELP_STRING(--enable-curvecp,Compile and install curvecp tools)],
+[curvecp=enabled])
+AM_CONDITIONAL(CURVECP, test x$curvecp = xenabled)
 
 AC_ARG_WITH(safecode,
 [AS_HELP_STRING(--with-safecode,For maintainers only - please do not use)],

src/Makefile.am

@@ -1,4 +1,8 @@
 
 SUBDIRS = \
-	libsodium \
+	libsodium
+
+if CURVECP
+SUBDIRS += \
 	curvecp
+endif