wget https://zlib.net/zlib-1.2.11.tar.gz
tar xzf zlib-*.tar.gz
cd zlib-*/
CC=musl-gcc ./configure --static
make
ls -l libz.a
cd ..

wget https://www.sqlite.org/2021/sqlite-amalgamation-3360000.zip
unzip sqlite-amalgamation-*.zip
cd sqlite-amalgamation-*/
ln -s . include                                                         # Workaround for a bug in the Zabbix proxy makefile
ln -s . lib
musl-gcc -DSQLITE_ENABLE_FTS5 -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_DBSTAT_VTAB -Wall -g -O2 -c sqlite3.c
ar rcs libsqlite3.a sqlite3.o
cd ..

wget https://www.openssl.org/source/openssl-1.1.1l.tar.gz               # Dependency for libevent
tar xzf openssl-*.tar.gz
cd openssl-*/
CC=musl-gcc ./Configure --prefix=/ linux-x86_64 no-shared no-engine no-async -DOPENSSL_NO_SECURE_MEMORY
make depend
make
cd ..

wget https://github.com/libevent/libevent/releases/download/release-2.1.12-stable/libevent-2.1.12-stable.tar.gz
tar xzf libevent-*-stable.tar.gz
cd libevent-*-stable/
CC=musl-gcc CPPFLAGS="-g -I $PWD/../openssl-*/include" LDFLAGS="-L$(echo $PWD/../openssl-*/)" ./configure
V=1 make
cd ..

wget https://sourceforge.net/projects/pcre/files/pcre/8.45/pcre-8.45.tar.bz2
tar xjf pcre-*.tar.bz2
cd pcre-*/
CC=musl-gcc ./configure --disable-shared
V=1 make
cd ..

CC=musl-gcc \
  CPPFLAGS="-g" \
  LDFLAGS="-g" ./configure \ 
    --prefix="/opt/zabbix-proxy" \
    --disable-server \
    --disable-agent \
    --enable-proxy \
    --enable-static \
    --with-zlib-include="$(echo $PWD/zlib-*/)" \
    --with-zlib-lib="$(echo $PWD/zlib-*/)" \
    --with-sqlite3="$(echo $PWD/sqlite-amalgamation-*/)" \
    --with-libevent-include="$(echo $PWD/libevent-*-stable/include/)" \
    --with-libevent-lib="$(echo $PWD/libevent-*-stable/.libs/)" \
    --with-libpcre-include="$(echo $PWD/pcre-*/)" \
    --with-libpcre-lib="$(echo $PWD/pcre-*/.libs/)"
make