Re: Installing any netCDF under cygwin

[Mark Hadfield <m.hadfield@xxxxxxxxxx>]

Hi Didier

From the linker errors in make_test.log, I conclude that you have 
generated object files test_get.o, test_put.o and test_write.o with the 
gfortran compiler, but are now trying to link them with g77. I base this 
conclusion on the names that appear in the "undefined reference" errors.

First, they all have one trailing underscore, whereas I would expect g77 
to have produced object files requiring two trailing underscores. For 
some background on this, see the Gnu documentation for the "-ff2c" and 
"-fsecond-underscore" switches here

http://gcc.gnu.org/onlinedocs/gcc-4.2.0/gfortran/Code-Gen-Options.html#Code-Gen-Options

and note that by default gfortran has "-ff2c" turned off whereas g77 and 
g95 have it turned on.

Second, there are several references to names like "__gfortran_st_open". 
These surely suggest gfortran has come into the process somewhere.

I'm afraid I don't know why this has happened. All I can suggest is that 
you delete everything & restart, setting the FC environment variable to 
whichever compiler you require. I suggest you try to build the 3.6.2 
version as that is known to build out of the box with g77 or gfortran or 
g95.

--
Mark Hadfield          "Ka puwaha te tai nei, Hoea tahi tatou"
m.hadfield@xxxxxxxxxx
National Institute for Water and Atmospheric Research (NIWA)



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