fix problems in previous version
diff --git a/configs/aix-64 b/configs/aix-64
index 98bb255..0d98475 100644
--- a/configs/aix-64
+++ b/configs/aix-64
@@ -1,15 +1,15 @@
-# Configuration for AIX, dynamic libs
+# Configuration for AIX 64-bit, dynamic libs
include $(TOP)/configs/default
-CONFIG_NAME = aix
+CONFIG_NAME = aix-64
# Compiler and flags
CC = xlc
CXX = xlC
CFLAGS = -q64 -qmaxmem=16384 -O -DAIXV3
-CXXFLAGS = -O -DAIXV3
+CXXFLAGS = -q64 -qmaxmem=16384 -O -DAIXV3
MKLIB_OPTIONS = -arch AIX64
# Library names (actual file names)