alsa开发包是哪个？

[xuwei xiao <xw.xiao@gmail.com>]

编译安装bmpx，提示：
checking for ALSA... configure: error: Package requirements (alsa >= 
1.0.9) were not met.
Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively you may set the ALSA_CFLAGS and ALSA_LIBS environment 
variables
to avoid the need to call pkg-config.  See the pkg-config man page for
more details.
我用的testing，已经有了alsa了，但是我找不到alsa的开发包，装了alsa-source 
也不行的。