[Apbs-users] sander.APBS compilation error

[Daniel A. <Dan...@um...>]

Hello,
I've gotten APBS and iAPBS compiled.  I am trying to compile sander.APBS now.  Got configuration to work but make gives below error which I can not figure out the meaning of:
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:457: undefined reference to `gzopen'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:470: undefined reference to `gzgets'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:517: undefined reference to `gzgets'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:538: undefined reference to `gzclose'
/home/aiellod/soft/lib/libapbs.a(vgrid.o): In function `Vgrid_writeGZ':
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:823: undefined reference to `gzopen'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:925: undefined reference to `gzwrite'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:935: undefined reference to `gzwrite'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:939: undefined reference to `gzwrite'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:956: undefined reference to `gzwrite'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:958: undefined reference to `gzclose'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:947: undefined reference to `gzwrite'
/home/aiellod/soft/src/apbs-1.3-source/src/mg/vgrid.c:823: undefined reference to `gzopen'
collect2: ld returned 1 exit status
make: *** [sander.APBS] Error 1

Maybe I don't have gz*?  Thanks,
Dan