Later Compile Error

[Robert Dinse]

     Can anyone give me a hint as to how to get around this compile error:
  CC       guacenc-log.o
jpeg.c: In function ‘guacenc_jpeg_decoder’:
jpeg.c:94:5: error: implicit declaration of function ‘jpeg_mem_src’; did 
you mean ‘jpeg_stdio_src’? [-Werror=implicit-function-declaration]
     jpeg_mem_src(&cinfo, data, length);
     ^~~~~~~~~~~~
     jpeg_stdio_src
cc1: all warnings being treated as errors
make[2]: *** [Makefile:1044: guacenc-jpeg.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[2]: Leaving directory '/usr/src/guacamole-server/src/guacenc'
make[1]: *** [Makefile:528: all-recursive] Error 1
make[1]: Leaving directory '/usr/src/guacamole-server'
make: *** [Makefile:450: all] Error 2

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