I'm trying to compile chan_h323 for Asterisk, I only get an error when I start the make on Asterisk. Can someone shed some light on this issue? (CentOS 5.4 x64) Here are my notes: yum -y install ncurses ncurses-devel openssl openssl-devel zlib zlib-devel bison bison-devel glibc gcc kernel-devel flex yum install gcc-c++ cd /usr/src wget http://downloads.asterisk.org/pub/telephony/asterisk/asterisk-1.6.0.17.t ar.gz wget http://www.h323plus.org/source/download/h323plus-v1_21_0.tar.gz wget http://www.h323plus.org/source/download/ptlib-2.4.5.tar.bz2 tar zxvf asterisk-1.6.0.17.tar.gz mv asterisk-1.6.0.17/ ~/asterisk tar zxvf h323plus-v1_21_0.tar.gz bzip2 -cd ptlib-2.4.5.tar.bz2 | tar xvf - mv h323plus ~/h323plus mv ptlib-2.4.5 ~/ptlib export PTLIBDIR=$HOME/ptlib export OPENH323DIR=$HOME/h323plus export LD_LIBRARY_PATH=$OPENH323DIR/lib:$PTLIBDIR/lib cd $PTLIBDIR ./configure --prefix=/usr make make install cd $OPENH323DIR chmod +x configure ./configure --prefix=/usr make make opt cd lib cp libh323_linux_x86_64_.so.1.21-beta0 libh323_linux_x86_64_.so.1.21.0 cd .. make install cd ~/asterisk ./configure --prefix=/usr make menuselect [*] chan_h323 make [CC] chan_agent.c -> chan_agent.o [LD] chan_agent.o -> chan_agent.so [CC] chan_h323.c -> chan_h323.o ast_h323.h:104: error: 'BOOL' has not been declared ast_h323.h:156: error: 'BOOL' does not name a type ast_h323.h:157: error: 'BOOL' does not name a type ast_h323.h:159: error: 'BOOL' does not name a type ast_h323.cxx:2102: error: prototype for 'void MyH323Connection::MyHoldCall(PBoolean)' does not match any in class 'MyH323Connection' ast_h323.h:104: error: candidate is: void MyH323Connection::MyHoldCall(int) ast_h323.cxx:2370: error: 'BOOL' does not name a type ast_h323.cxx:2376: error: 'BOOL' does not name a type ast_h323.cxx:2387: error: 'BOOL' does not name a type make[2]: *** [ast_h323.o] Error 1 make[1]: *** [h323/libchanh323.a] Error 2 make: *** [channels] Error 2