Well, yes, as a matter of fact, we built plplot to generate static libraries;
and I am also compiling a program to staticly link those libraries.
As far as platform and the like info goes, right now I am in Linux; but I will
be doing the same thing for Solaris and Windows.
I am using the gcc and g95 compilers in all three platforms.
While we are using cmake to compile plplot, I am NOT using it to compile my own
fortran program that uses plplot.
After taking a look at one of the files used by plplot, it seems as if plplot
links in all the drivers all the time...so, I started to include some, too (as
hinted by the messages), until all the "undefined reference" messages
disappeared. Here is what I ended up with:
g95 -I/usw/ude/Linux/include \
-L/usw/ude/Linux/lib \
-r8 -Bstatic -s -ffixed-line-length-132 -ftrace=full \
-o try try.f \
-lplplotf77d -lplplotf77cd -lplplotd \
-lgd \
-ltcl8.4 \
-ltk8.4 \
-lhpdf \
-lm \
-lcsirocsa
Directory /usw/ude/Linux is where we install our third party software, like
plplot.
Basically, the libraries that I thought I should not need but had to add anyway
are:
-lgd \
-ltcl8.4 \
-ltk8.4 \
-lhpdf \
Who knows, eventually, I may have to add other things like the ones that show
up in the files used by plplot: png, z, jpeg, xwin, X11, Xext, SM and ICE...I
think I will know when, except for SM and ICE...what is that?
So, that's that, and if that's the way plplot works, fine; it does not seem
ideal, but now I know.
So, it looks like I am in business.
Thanks for the feedback.
Germán
-----Original Message-----
From: Alan W. Irwin [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 06, 2007 4:18 PM
To: Salazar, German P21322
Cc: plplot-general@lists.sourceforge.net
Subject: Re: [Plplot-general] Compiling a program: undefined reference
On 2007-09-06 15:12-0400 Salazar, German P21322 wrote:
> : undefined reference to `gdImageLine'
> /usw/ude/Linux/lib/libplplotd.a(gd.o)(.text+0xbe0): In function
> `fill_polygon':
>
> ...and the list goes on.
>
> Questions:
>
> Why is it trying to use all these drivers if I am only using "psc" from
> Fortran?
> Is it possible that plplotd.a was not properly randomized and somehow
> when I link it, I link the entire file?
>
> Pointers would be much appreciated.
Please give details of what you did, i.e., cmake command-line options and
full cmake output at minimum. Also, identify your platform and be specific
about the "compile process" you are using.
In the absence of those details, I can only guess what the issue is. It
appears from above that you have done a static library build for PLplot
which is a non-default configuration which we don't test very much. So you
may have inadvertently found some external build issue for that case. But
please give the details requested above so I can replicate the static build
issue here and fix it.
If you did not specifically go out of your way to specify a static library
build, then cmake probably found something missing on your system that
forced that. To avoid that result, pay close attention to any warnings you
get from cmake concerning shared libraries and address the issue so you can
build shared libraries for PLplot. Shared libraries are our most thoroughly
tested configuration.
Alan
__________________________
Alan W. Irwin
Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).
Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
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