Linking issue (TOPO-0.1)

[Steiner, Guido {PRBT~Basel}]

If I'm allowed to post once more (I promise this will be the last problem submitted today :-)....

When trying to compile Topo 0.1 (of the EMBASSY package) with png support enabled, I get a linking error as follows:

ld64: ERROR 33: Unresolved text symbol "floor" -- 1st referenced by /soft/bi/pdsoft64/lib/libgd.a(gd.o).
        Use linker option -v to see when and which objects, archives and dsos are loaded.  
ld64: ERROR 33: Unresolved text symbol "pow" -- 1st referenced by ./ldtmpa1gUXE/libpng.a(pngrtran.o).o.
        Use linker option -v to see when and which objects, archives and dsos are loaded.  
ld64: INFO 152: Output file removed because of error.

This seems to be due to the fact that the math libraries are linked in the wrong order. The following is done:

 cc  -O   -L/soft/bi/pdsoft64/lib  -o topo  topo.o ../../../ajax/libajaxg.la ../../../ajax/libajax.la ../../../plplot/libplplot.la -lX11  -lsocket  -lm -lgd -lpng -lz

And what should be actually done (IMHO):

 cc  -O   -L/soft/bi/pdsoft64/lib -o topo  topo.o ../../../ajax/libajaxg.la ../../../ajax/libajax.la ../../../plplot/libplplot.la -lX11  -lsocket  -lgd -lpng -lz -lm

The configure script, however, proofed resistant to my efforts in altering the linking order. I just don't see how the LIBS variable is put together.
Ideas anyone? :)

Guido Steiner