Disable ckdb by default.

configure.ac

@@ -75,8 +75,8 @@ JANSSON_LIBS="jansson-2.10/src/.libs/libjansson.a"
 AC_SUBST(JANSSON_LIBS)
 
 AC_ARG_WITH([ckdb],
-	[AC_HELP_STRING([--without-ckdb],[Compile ckpool without postgresql database support (default enabled)])],
-	[ckdb=$withval]
+	[AC_HELP_STRING([--with-ckdb],[Compile ckpool with ckdb database support (default disabled)])],
+	[ckdb=$withval],[ckdb=no]
 	)
 
 AC_SEARCH_LIBS(clock_nanosleep, rt, , "Error: Required library rt not found." && exit 1)
@@ -85,15 +85,15 @@ AC_SEARCH_LIBS(pthread_mutex_trylock, pthread, , "Error: Required library pthrea
 
 if test "x$ckdb" != "xno"; then
 	AC_SEARCH_LIBS(PQdb, pq, , echo "Error: Required library pq
-		not found. Install it or disable postgresql support with --without-ckdb" && exit 1)
+		not found. Install it or disable support by removing --with-ckdb" && exit 1)
 	AC_SEARCH_LIBS(BN_init, crypto, , echo "Error: Required library crypto
-		not found. Install them or disable support with --without-ckdb" && exit 1)
+		not found. Install them or disable support by removing --with-ckdb" && exit 1)
 	AC_SEARCH_LIBS(SSL_accept, ssl, , echo "Error: Required libraries ssl
-		not found. Install them or disable support with --without-ckdb" && exit 1)
+		not found. Install them or disable support by removing --with-ckdb" && exit 1)
 	AC_SEARCH_LIBS(cblas_dgemm, gslcblas, ,echo "Error: Required library gslcblas
-		not found. Install them or disable support with --without-ckdb" && exit 1)
+		not found. Install them or disable support by removing --with-ckdb" && exit 1)
 	AC_SEARCH_LIBS(gsl_blas_dgemm, gsl, , echo "Error: Required library gsl
-		not found. Install them or disable support with --without-ckdb" && exit 1)
+		not found. Install them or disable support by removing --with-ckdb" && exit 1)
 	AC_DEFINE([USE_CKDB], [1], [Defined to 1 if ckdb support required])
 fi
 AM_CONDITIONAL([WANT_CKDB], [test "x$ckdb" != "xno"])