Fix man pages not being built when using CMake.

Closes eclipse#1969. Thanks to phplpf.

ChangeLog.txt

@@ -4,6 +4,9 @@ Broker:
 - mosquitto_connect_bind_async() and mosquitto_connect_bind_v5() should not
  reset the bind address option if called with bind_address == NULL.
 
+Build:
+- Fix man pages not being built when using CMake. Closes #1969.
+
 
 2.0.3 - 2020-12-17
 ==================

man/CMakeLists.txt

@@ -1,3 +1,24 @@
+if(NOT WIN32)
+ function(compile_manpage page)
+ add_custom_command(OUTPUT ${CMAKE_SOURCE_DIR}/man/${page}
+ COMMAND xsltproc ${CMAKE_SOURCE_DIR}/man/${page}.xml -o ${CMAKE_SOURCE_DIR}/man/
+ MAIN_DEPENDENCY ${CMAKE_SOURCE_DIR}/man/${page}.xml)
+ add_custom_target(${page} ALL DEPENDS ${CMAKE_SOURCE_DIR}/man/${page})
+ endfunction()
+
+ compile_manpage("mosquitto_ctrl.1")
+ compile_manpage("mosquitto_ctrl_dynsec.1")
+ compile_manpage("mosquitto_passwd.1")
+ compile_manpage("mosquitto_pub.1")
+ compile_manpage("mosquitto_sub.1")
+ compile_manpage("mosquitto_rr.1")
+ compile_manpage("libmosquitto.3")
+ compile_manpage("mosquitto.conf.5")
+ compile_manpage("mosquitto-tls.7")
+ compile_manpage("mqtt.7")
+ compile_manpage("mosquitto.8")
+endif()
+
 install(FILES mosquitto_ctrl.1 mosquitto_ctrl_dynsec.1 mosquitto_passwd.1 mosquitto_pub.1 mosquitto_sub.1 mosquitto_rr.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
 install(FILES libmosquitto.3 DESTINATION ${CMAKE_INSTALL_MANDIR}/man3)
 install(FILES mosquitto.conf.5 DESTINATION ${CMAKE_INSTALL_MANDIR}/man5)