WW3 fails to compile on M1/gnu with "sed invalid command L"

[platipodium]

On Apple Silicon M1 with gcc/mpich toolchain, the build.sh script fails when WW3 is included:

	exec /Applications/Xcode.app/Contents/Developer/usr/bin/make -j 1 WW3_COMP="gnu" COMP_BINDIR="/Users/Lemmen/devel/noaa/CoastalApp/WW3_INSTALL" ww3_nems
No module selected.
+ cd /Users/Lemmen/devel/noaa/CoastalApp/WW3/model/esmf
+ export COMP_SRCDIR=/Users/Lemmen/devel/noaa/CoastalApp/WW3/model COMP_BINDIR=/Users/Lemmen/devel/noaa/CoastalApp/WW3_INSTALL WW3_COMP=gnu
+ COMP_SRCDIR=/Users/Lemmen/devel/noaa/CoastalApp/WW3/model
+ COMP_BINDIR=/Users/Lemmen/devel/noaa/CoastalApp/WW3_INSTALL
+ WW3_COMP=gnu
+ exec /Applications/Xcode.app/Contents/Developer/usr/bin/make -j 1 WW3_COMP=gnu COMP_BINDIR=/Users/Lemmen/devel/noaa/CoastalApp/WW3_INSTALL ww3_nems

                *****************************
              ***   WAVEWATCH III setup     ***
                *****************************


[INFO] local env file wwatch3.env found in /Users/Lemmen/devel/noaa/CoastalApp/WW3/model/bin/wwatch3.env
sed: 1: "/Users/Lemmen/devel/noa ...": invalid command code L
make[1]: *** [setup] Error 1
make: *** [/Users/Lemmen/devel/noaa/CoastalApp/WW3_INSTALL/nuopc.mk] Error 2

[josephzhang8]

@takis:

Carsten and I are pulling the latest CoastalApp (develop branch) but WW3 cannot be checked out automatically.
Carsten also tried with a version of WW3 he downloaded but the build failed with errors related to METIS and PARMETIS.

Can u plz check to see if you can build successfully?

Thx.