[gdal-dev] Building with HDF4 on Mc OSX

[jluis at ualg.pt]

Hi,

With the kind help of William I was able to trace the problem.
Apparently the problem was due the fact that I hadn't configure HDF4  
with libsz.
(well, I didn't even had libsz in the system).

But building HDF4 with libsz still failed in the GDAL config

configure:22026: gcc -o conftest -g -O2   conftest.c -lmfhdf -ldf  
-ljpeg -lnetcdf -lz  -ldl  >&5
Undefined symbols:
   "_SZ_BufftoBuffCompress", referenced from:
       _HCIcszip_term in libdf.a(cszip.o)
   "_SZ_encoder_enabled", referenced from:
       _HCget_config_info in libdf.a(hcomp.o)
       _HCIcszip_staccess in libdf.a(cszip.o)
       _HCPcszip_write in libdf.a(cszip.o)
       _HCPcszip_write in libdf.a(cszip.o)
   "_SZ_BufftoBuffDecompress", referenced from:
       _HCIcszip_decode in libdf.a(cszip.o)


Notice that there is no -lsz on the compiling instruction.
So I hacked the configure script and added -lsz and finaly GDAL says  
it has HDF4 support.

But this is highly unorthodox

Joaquim Luis

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