Problem with installation

I have a PC without any card, but i’ve installed dahdi for clock, after that i installed asterisk without problems, but when i’ve tried install asterisk tools i have next problems:

s function) chan_ooh323.c:288: error: (Each undeclared identifier is reported only once chan_ooh323.c:288: error: for each function it appears in.) chan_ooh323.c: In function âooh323_onReceivedDigitâ: chan_ooh323.c:1237: error: incompatible types in assignment make[1]: *** [chan_ooh323.o] Error 1 make[1]: Leaving directory `/usr/src/asterisk-addons-1.6.0.3/channels' make: *** [channels] Error 2 [root@asterisk asterisk-addons-1.6.0.3]# make install CC="gcc" CXX="g++" LD="" AR="" RANLIB="" CFLAGS="" make -C menuselect CONFIGURE_SILENT="--silent" makeopts make[1]: Entering directory `/usr/src/asterisk-addons-1.6.0.3/menuselect' make[1]: `makeopts' is up to date. make[1]: Leaving directory `/usr/src/asterisk-addons-1.6.0.3/menuselect' make[1]: Entering directory `/usr/src/asterisk-addons-1.6.0.3/channels' [CC] chan_ooh323.c -> chan_ooh323.o chan_ooh323.c: In function âooh323_newâ: chan_ooh323.c:288: error: âDSP_FEATURE_DTMF_DETECTâ undeclared (first use in this function) chan_ooh323.c:288: error: (Each undeclared identifier is reported only once chan_ooh323.c:288: error: for each function it appears in.) chan_ooh323.c: In function âooh323_onReceivedDigitâ: chan_ooh323.c:1237: error: incompatible types in assignment make[1]: *** [chan_ooh323.o] Error 1 make[1]: Leaving directory `/usr/src/asterisk-addons-1.6.0.3/channels' make: *** [channels] Error 2

Please could you help me?

Do I need dahdi (does asterisk give me clock for calling over sip?)

Do you need an h323 channel? if not you could just deselect it in the menuselect. I could be wrong here but I believe you need the dahdi dummy timer for things like music on hold and meet me conferences. If I am wrong please correct.