CFLAGS for export_hdf were missing.
Couple more compiler errors to be fixed along the way.
Merge branch 'master' into roipac
Merge branch 'master' of https://github.com/rudigens/ASF_MapReady

Conflicts:
	src/libasf_geocode/asf_geocode.c
	src/libasf_sar/calc_number_looks.c