下载编译源文件mosquitto-auth-plug-0.1.3.tar.gz
tar解压，进入目录，修改config.mk文件
内容如下
# Select your backends from this list
BACKEND_CDB ?= no
BACKEND_MYSQL ?= no
BACKEND_SQLITE ?= no
BACKEND_REDIS ?= yes
BACKEND_POSTGRES ?= no
BACKEND_LDAP ?= no
BACKEND_HTTP ?= no
BACKEND_JWT ?= no
BACKEND_MONGO ?= no
BACKEND_FILES ?= no
BACKEND_MEMCACHED ?= no
#CC =aarch64-linux-gnu-gcc
#CXX=aarch64-linux-gnu-g++
CC =/home/forlinx/work/edgeOS/build/toolchain/gcc-linaro-11.2.1-2022.02-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc
CXX=/home/forlinx/work/edgeOS/build/toolchain/gcc-linaro-11.2.1-2022.02-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-g++
# Specify the path to the Mosquitto sources here
# MOSQUITTO_SRC = /usr/local/Cellar/mosquitto/1.4.12
MOSQUITTO_SRC = /home/forlinx/work/tool/mosquitto/mosquitto-1.5.8
# Specify the path the OpenSSL here
OPENSSLDIR = /home/forlinx/work/tool/openssl/out
# Add support for django hashers algorithm name
SUPPORT_DJANGO_HASHERS ?= no
# Specify optional/additional linker/compiler flags here
# On macOS, add
# CFG_LDFLAGS = -undefined dynamic_lookup
# as described in https://github.com/eclipse/mosquitto/issues/244
#
# CFG_LDFLAGS = -undefined dynamic_lookup -L/usr/local/Cellar/openssl/1.0.2l/lib
# CFG_CFLAGS = -I/usr/local/Cellar/openssl/1.0.2l/include -I/usr/local/Cellar/mosquitto/1.4.12/include
#
CFG_LDFLAGS = -L/home/forlinx/work/tool/openssl/out/lib -L/home/forlinx/work/tool/mosquitto/out/lib -L/home/forlinx/work/tool/hiredis/out/lib
CFG_CFLAGS = -I/home/forlinx/work/tool/openssl/out/include -I/home/forlinx/work/tool/mosquitto/out/include -I/home/forlinx/work/tool/hiredis/out/include
修改地方注解：
GCC和G++的路径
CC =/home/forlinx/work/edgeOS/build/toolchain/gcc-linaro-11.2.1-2022.02-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-gcc
CXX=/home/forlinx/work/edgeOS/build/toolchain/gcc-linaro-11.2.1-2022.02-x86_64_aarch64-linux-gnu/bin/aarch64-linux-gnu-g++
交叉编译的mosquitto-1.5.8源码路径
MOSQUITTO_SRC = /home/forlinx/work/tool/mosquitto/mosquitto-1.5.8
交叉编译openssl的输出路径
OPENSSLDIR = /home/forlinx/work/tool/openssl/out
openssl、mosquitto、hiredis的交叉编译的lib和includ路径
CFG_LDFLAGS = -L/home/forlinx/work/tool/openssl/out/lib -L/home/forlinx/work/tool/mosquitto/out/lib -L/home/forlinx/work/tool/hiredis/out/lib
CFG_CFLAGS = -I/home/forlinx/work/tool/openssl/out/include -I/home/forlinx/work/tool/mosquitto/out/include -I/home/forlinx/work/tool/hiredis/out/include
?
最后make，生成auth-plug.so
