Re: gnuplot 5.0.1 build error: use of undeclared identifier 'GE_replot'

[Brian W. <bri...@gm...>]

> On Aug 3, 2015, at 2:15 PM, Brian Weitzner <bri...@gm...> wrote:
> 
> 
>> On Aug 3, 2015, at 2:07 PM, Ethan A Merritt <sf...@us... <mailto:sf...@us...>> wrote:
>> 
>> On Monday, 03 August, 2015 12:40:22 Brian Weitzner wrote:
>> > Hello,
>> > 
>> > I am trying to build gunplot on a Mac via macports and I get the following error:
>> > 
>> > :info:build In file included from term.c:1194:
>> > :info:build In file included from ./term.h:254:
>> > :info:build ../term/caca.trm:2514:3: warning: implicit declaration of function 'process_event' is invalid in C99 [-Wimplicit-function-declaration]
>> > :info:build                 process_event(GE_replot, 0, 0, 0, 0, 0);
>> > :info:build                 ^
>> > :info:build ../term/caca.trm:2514:17: error: use of undeclared identifier 'GE_replot'
>> > :info:build                 process_event(GE_replot, 0, 0, 0, 0, 0);
>> > :info:build                               ^
>> > 
>> > Has this issue been encountered and/or resolved by anyone else? Any help or information is appreciated.
>>  
>> I don't know why it is failing, but the simplest fix is to
>> disable the caca terminal
>>  
>>   ./configure --without-caca
>>  
>> It's a "just-for-fun" option that you don't need for anything serious.
>> I am somewhat surprised that your machine even has libcaca installed 
>> to begin with.
>>  
>> 	Ethan
> 
> 
> For reasons unknown, libcaca is listed as a dependency by MacPorts, so everyone who gets gnuplot that way has libcaca.
> 
> -- 
> Brian D. Weitzner
> Postdoctoral Fellow
> Chemical & Biomolecular Engineering
> Johns Hopkins University
> Baltimore, Maryland 21218
> http://graylab.jhu.edu <http://graylab.jhu.edu/>

I found the following line in the main.log produced by MacPorts:

line 108:
cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_gnuplot/gnuplot/work/gnuplot-5.0.1" && ./configure --prefix=/opt/local --with-caca=/opt/local --with-gd=/opt/local --with-readline=/opt/local --with-aquaterm --without-x --infodir='${prefix}/share/info' --mandir='${prefix}/share/man' --disable-wxwidgets --without-bitmap-terminals --without-cairo --without-latex --without-lua --without-pdf --without-qt --without-tutorial --with-cwdrc

I ran the port command, let the build fail and then executed configure with the caca lib definition changed to "--without-caca”, then reran the port upgrade command. That did the trick! Thanks for the workaround.



-- 
Brian D. Weitzner
Postdoctoral Fellow
Chemical & Biomolecular Engineering
Johns Hopkins University
Baltimore, Maryland 21218
http://graylab.jhu.edu <http://graylab.jhu.edu/>