创建，添加sdram

rt-thread/tools/kconfig-frontends/SConstruct

@@ -0,0 +1,26 @@
+import os
+
+env = Environment()
+env.AppendENVPath('PATH', os.environ['PATH'])
+env['CPPPATH'] = ['libs/parser', 'libs']
+env['CPPDEFINES'] = ['CURSES_LOC=\\"ncurses.h\\"', 'HAVE_CONFIG_H',
+    'ROOTMENU=\\"Configuration\\"',
+    'CONFIG_=\\"CONFIG_\\"',
+    'KBUILD_NO_NLS',
+    'GPERF_LEN_TYPE=unsigned int']
+env['LIBS'] = ['ncurses']
+
+src = Split('''
+libs/lxdialog/checklist.c
+libs/lxdialog/inputbox.c
+libs/lxdialog/menubox.c
+libs/lxdialog/textbox.c
+libs/lxdialog/util.c
+libs/lxdialog/yesno.c
+
+libs/parser/yconf.c
+
+frontends/mconf/mconf.c
+''')
+
+env.Program('kconfig-mconf', src)