CFLAGS=“-I${BUILD_LIBS}/include -Wno-error=unused-value”
yum install -y http://files.freeswitch.org/freeswitch-release-1-6.noarch.rpm epel-release
yum install -y git alsa-lib-devel autoconf automake bison broadvoice-devel bzip2 curl-devel db-devel e2fsprogs-devel flite-devel g722_1-devel gcc-c++ gdbm-devel gnutls-devel ilbc2-devel ldns-devel libcodec2-devel libcurl-devel libedit-devel libidn-devel libjpeg-devel libmemcached-devel libogg-devel libsilk-devel libsndfile-devel libtheora-devel libtiff-devel libtool libuuid-devel libvorbis-devel libxml2-devel lua-devel lzo-devel mongo-c-driver-devel ncurses-devel net-snmp-devel openssl-devel opus-devel pcre-devel perl perl-ExtUtils-Embed pkgconfig portaudio-devel postgresql-devel python26-devel python-devel soundtouch-devel speex-devel sqlite-devel unbound-devel unixODBC-devel wget which yasm zlib-devel
./bootstrap.sh
./configure -C --enable-portable-binary --enable-sctp --prefix=/usr --localstatedir=/var --sysconfdir=/etc --with-gnu-ld --with-openssl --enable-core-odbc-support --enable-zrtp --enable-core-pgsql-support --enable-static-v8 --disable-parallel-build-v8 --disable-selinux
make -j install
make -j cd-sounds-install
make -j cd-moh-install
refer
https://www.ahfesco.com.cn/affairs/Article.asp?id=2356