Production wgrib2 3.8.0 still hit `*** FATAL ERROR: packing type 40
not supported ***` on HRDPS files. ldd confirmed wgrib2 was linking
only libc/libm — no OpenJPEG, no Jasper, no g2c.
wgrib2 3.8.0 cmake doesn't have USE_OPENJPEG or USE_JASPER options.
The legacy flag names we passed were silently ignored. The actual
knob is USE_G2CLIB_LOW, which links wgrib2 to the external g2c lib
(already built in the previous stage with OpenJPEG support). Dropped
the bogus USE_PNG / USE_OPENJPEG flags and added USE_G2CLIB_LOW=ON
in both Dockerfiles.
Verified by reading wgrib2 v3.8.0's CMakeLists.txt: the documented
JPEG2000 path is "USE_G2CLIB_LOW: Use g2c low-level decoders
(png,jpeg2000)?".
Graham McIntire
ea27e84613