GDAL with hdf4 support fails to build (gcc 3.4) because HdfEosDef.h isn't found. Changing HDF4_INCLUDE to $(GDAL_ROOT)/frmts/hdf4/hdf-eos in GDALmake.opt fixed this for me. -- ----------------------------- Vincent Schut SarVision B.V. Wageningen, The Netherlands www.sarvision.com