The message for gcc -V is expected and should be ignored. That is simply
part of configure's normal mechanism for checking compiler features.
Please remove "--enable-f90". That is no longer a valid option in modern
versions of netcdf-C. The fortran library is now compiled separately. I
do not think this would cause your problem, though.
The real error appears to be in a small configure test program that tries
to compile with "include hdf5.h". Does the file
/Users/hellyj/src/hdf5-1.14.6/Build/include/hdf5.h exist? There are other
possible causes for this test failure. I have seen this happen with
miscellaneous problems linking with libhdf5 or other dependency libraries.
Examine the end of config.log for more details. Perhaps copy out the small
test program, and try to compile and run it as stand-alone. Post the full
config.log as attachment, if needed.
Netcdf-C 4.9.3 with HDF5 is building fine on Sequoia arm64 (M1/M2/M3), on
MacPorts and Homebrew.
On Thu, Jul 24, 2025 at 11:58 AM Helly, John <hellyj@xxxxxxxx> wrote:
> Aloha.
>
> I've installed earlier versions of netCDF many, many times but I've been
> away from it for a few years (maybe more than a few).
>
> Anyway, I'm trying to install on OSX 15.5 (Sequoia) on Apple M2 hardware.
> I've (apparently) successfully installed hdf5-1.14.6 and am not trying to
> compile NC against it. But when I run this ...
>
> CPPFLAGS='-I/Users/hellyj/src/hdf5-1.14.6/Build/include' \
> LDFLAGS='-L/Users/hellyj/src/hdf5-1.14.6/Build/lib' \
> ./configure --prefix=/Users/hellyj/src/netcdf-c-4.9.3/Build
> --enable-netcdf-4 --enable-f90
> --with-hdf5=/Users/hellyj/src/hdf5-1.14.6/Build
> make check install
>
> This is what happens:
>
> configure: error: Compiling a test with HDF5 failed. Either hdf5.h cannot
> be found, or config.log should be checked for other reason.
>
> + make check install
>
>
> When I look at config.log the only error I find is:
>
> configure:4531: $? = 0
>
> configure:4520: gcc -V >&5
>
> gcc: error: unrecognized command-line option '-V'
>
>
> Which seems to be a problem with gcc arguments. However, not sure how to
> correct this in the 'configure' script or if it should be happening at all.
>
>
> Any advice is very welcome.
>
>
> Mahalo
>
>
> ----------------------------------------------------------------------------------------------------------------------
> John Helly / San Diego Supercomputer Center / Scripps Institution
> of Oceanography
> https://www.sdsc.edu/~hellyj / 808 205 9882 / 760 8408660
>
