[mesa-users] configure problems with pgplot + libpng for mesa

[Bill P. <pa...@ki...>]

Hi,

The PGPLOT extension for MESA is a big hit -- thanks again to Philip Pinto for getting it started.

I'm sending email this in case anyone in mesa-users can help me with a configuration issue.  
Upgrading to the new ifort (12.0) has forced me to rebuild pgplot, and somehow things
have gotten confused so that configure is using one source for the png headers and a different
source for the libpng.dylib library.  The result is of course failure when I try to do png
output.  When I try to produce png output with pgplot, it reports as follows:

libpng warning: Application was compiled with png.h from libpng-1.4.1
libpng warning: Application  is  running with png.c from libpng-1.2.44
libpng error: Incompatible libpng version in application and library
PGPLOT /png: error in libpng while writing file tst.png, plotting disabled
forrtl: severe (174): SIGSEGV, segmentation fault occurred
Image              PC                Routine            Line        Source             
libpng12.0.dylib   000000010037022C  Unknown               Unknown  Unknown
libpgplot.0.dylib  000000010005E9AC  Unknown               Unknown  Unknown
libpgplot.0.dylib  000000010005DBC6  Unknown               Unknown  Unknown


There are libpng12's and libpng14's on my disk, so configure must be getting 
png.h from a place with libpng12 and then using the libpng from a place with libpng14.

Do you happen to know a way to get configure to do the right thing here?

Thanks,
Bill