Compile zabbix agent with openssl with static libraries

compile_zabbix_agent_openssl_static.sh

PCRE_VERSION=8.44
ZABBIX_VERSION=4.4.7
OPENSSL_VERSION=1.1.1g

### gcc ###
test ! `which gcc` && test `which apt-get` && apt-get install g++
test ! `which gcc` && test `which yum` && yum install g++

### PCRE ###
cd /usr/local/src
wget https://ftp.pcre.org/pub/pcre/pcre-$PCRE_VERSION.zip
unzip pcre-$PCRE_VERSION.zip
cd pcre-$PCRE_VERSION

time ./configure
time make
time make install
ldconfig


### OpenSSL ###
# https://unix.stackexchange.com/questions/293311/install-openssl-from-source
cd /usr/local/src
wget https://www.openssl.org/source/openssl-$OPENSSL_VERSION.tar.gz
tar -xzvf openssl-$OPENSSL_VERSION.tar.gz
cd openssl-$OPENSSL_VERSION

time ./config --prefix=/usr/local/openssl --openssldir=/usr/local/openssl 
time make
time make install


### ZABBIX ####
cd /usr/local/src
wget --no-check-certificate https://fossies.org/linux/misc/zabbix-$ZABBIX_VERSION.tar.gz
tar -xzvf zabbix-$ZABBIX_VERSION.tar.gz
cd zabbix-$ZABBIX_VERSION
addgroup --system --quiet zabbix
adduser --quiet --system --disabled-login --ingroup zabbix --home /var/lib/zabbix --no-create-home zabbix

# compile first without static linking as per: https://www.zabbix.com/forum/zabbix-troubleshooting-and-problems/46215-zabbix-3-0-3-with-tls-support-centos-5-x?p=277199#post277199
time ./configure --enable-agent --with-openssl=/usr/local/openssl
# backup
cp Makefile Makefile.orig
sed -r 's/(^CFLAGS.*)/\1 -I\/usr\/local\/openssl\/include/' -i Makefile
sed -r 's/(^LDFLAGS.*)/\1 -L\/usr\/local\/openssl\/lib -static/' -i Makefile
sed -r 's/(^LIBS.*)/\1 -lssl -lcrypto/' -i Makefile

# static linking removes runtime dependencies
time ./configure --enable-agent --enable-static --with-openssl=/usr/local/openssl

time make

ZABBIX_BIN_DIR=zabbix-$ZABBIX_VERSION-`uname -s`_`uname -m`
mkdir $ZABBIX_BIN_DIR
cp -t $ZABBIX_BIN_DIR src/zabbix_agent/zabbix_agentd src/zabbix_sender/zabbix_sender src/zabbix_get/zabbix_get
tar -czvf ${ZABBIX_BIN_DIR}.tar.gz $ZABBIX_BIN_DIR
cp ${ZABBIX_BIN_DIR}.tar.gz /tmp/

echo "Compiled zabbix agent binaries at: /tmp/${ZABBIX_BIN_DIR}.tar.gz"