Compiling 

• Using browser, download tarball https://www.openssl.org/source/

• cd ~projects/

• tar -zxvf ../Downloads/openssl-1.1.0h.tar.gz

• cd openssl-1.1.0h

• export INSTALL_DIR=/opt/compiled-arm-linux/openssl-1.1.0

• sudo mkdir -p $INSTALL_DIR

• ./Configure linux-generic32 shared  --prefix=$INSTALL_DIR --openssldir=$INSTALL_DIR \

   --cross-compile-prefix=/opt/gcc-linaro-5.3-2016.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- 

  
  

>>Configuring OpenSSL version 1.1.1-pre9-dev (0x10101009L) for linux-generic32
>>Using os-specific seed configuration
>>Creating configdata.pm
>>Creating Makefile  .... <SNIP>

• make clean

• make depend

• make

• make test (wrong architecture, can't run here :-) )

• sudo make install

  
  

Installing on target

• /opt/compiled-arm-linux/openssl-1.1.0/lib/libcrypto.so.1.1       to /usr/lib/arm-linux-gnueabihf/
• /opt/compiled-arm-linux/openssl-1.1.0/lib/libssl.so.1.1             to /usr/lib/arm-linux-gnueabihf/

Compiling

• Using browser, download tarball https://mosquitto.org/download/

• cd ~projects/

• tar -zxvf ../Downloads/mosquitto-1.5.tar.gz 

• cd mosquitto-1.5

• cmake -DCMAKE_TOOLCHAIN_FILE=/home/politick/projects/Toolchain-arm-linux-gneabi.cmake \

        -DCMAKE_INSTALL_PREFIX=/opt/compiled-arm-linux/mosquitto-1.5

• make clean

• make depend
• make
• sudo mkdir -p /opt/compiled-arm-linux/mosquitto-1.5
• sudo make install
  
  

Deployment

You need to transfer these sources:

• /opt/compiled-arm-linux/mosquitto-1.5/sbin/mosquitto    
• /opt/compiled-arm-linux/mosquitto-1.5/etc/mosquitto/mosquitto.conf   to /etc/mosquitto/mosquitto.conf

On the Target system:

• adduser mosquitto    (may want to remove login rights)