Mac OS X - dyld: perl Undefined symbols dyld: perl Undefined symbols:

[DSDunbar]

I recently installed the perl PGPLOT graphics module (aka pgperl) on my PowerBook G4 and have a problem with missing library functions. I'm running /usr/bin/perl v5.6.0 with OS X v10.2.3. I've used this module for years under Solaris and Linux so I'm familiar with its use. When I run a perl script with "use PGPLOT" in it I get the message:

dyld: perl Undefined symbols:
_png_create_info_struct
_png_create_write_struct
_png_destroy_write_struct
_png_init_io
_png_set_IHDR
_png_set_PLTE
_png_set_tRNS
_png_set_text
_png_write_end
_png_write_info
_png_write_row
Trace/BPT trap

So this looks like something related to the PNG image format; however, I'm not certain whether I need to install a missing perl module or some other library. I have libpng installed (I used Fink to install it in /sw/lib and then soft-linked it to /usr/local/lib and /usr/lib) but I don't think libpng is the problem since none of these functions are in libpng.a. A Google search for these functions didn't get me very far. Does anyone recognize them? Any suggestions for how to fix this problem?

 

[MikeLacey]

From a quick reading of the PGPLOT documentation:

It looks to me as if the PGPLOT C/FORTRAN library is not installed on your machine. I'm surprised you managed to get past the 'make test' installation stage to be honest.

Have you installed the library? Mike

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[DSDunbar]

No, I have PGPLOT installed. I had used Fink to install the PGPLOT Fortran and C static libraries (libcpgplot.a and libpgplot.a) in /sw/pgplot and then soft-linked them to /usr/lib and /usr/local/lib. However, one thing that may be relevant is that there is no shared library installed. I suspect that is because, AFAIK, OS X does not allow common bloxks in shared libraries.