将pcre移入Android，出现No rule to make target ，求大虾

[AU3604]

最近手头的一个工作是将pcre移植入android系统，但mm时总是通不过，出现如下问题：
make: Entering directory `/home/sflu/k32'
external/pcre-8.21/Android.mk:27: warning: overriding commands for target `external/pcre-8.21'
external/pcre-8.21/Android.mk:22: warning: ignoring old commands for target `external/pcre-8.21'
external/pcre-8.21/Android.mk:32: warning: overriding commands for target `external/pcre-8.21'
external/pcre-8.21/Android.mk:27: warning: ignoring old commands for target `external/pcre-8.21'
build/core/copy_headers.mk:15: warning: overriding commands for target `/pcre.h'
external/pcre-8.21/Android.mk:27: warning: ignoring old commands for target `/pcre.h'
No private recovery resources for TARGET_DEVICE k3v2oem1
make: Circular external/pcre-8.21 <- external/pcre-8.21 dependency dropped.
make: *** No rule to make target `/pcre_chartables.c.dist', needed by `external/pcre-8.21'. Stop.
make: Leaving directory `/home/sflu/k32'


注：
pcre的包是：pcre-8.21
android 4.0

网上面只有一篇参考文章，
http://www.cnblogs.com/hibraincol/archive/2011/10/15/2213714.html
mk也是参照这篇文章的。


熬了好多天，也没个结果，求大虾帮忙看看。