[petsc-users] problem with installation using quad precision

[Santiago Andres Triana]

Dear petsc-users,

I am trying to install petsc with the option --with-precision=__float128.
The ./configure goes fine, as well as the make all stage. However, the make
check step to test the libraries fails with the following error:

/usr/bin/ld: home/spin/petsc-3.9.3/arch-linux2-c-opt/lib/libpetsc.so:
undefined reference to `dgemv_'


this is the configure command I use:

./configure --with-scalar-type=complex --with-precision=__float128
--with-debugging=0 --with-fortran-kernels=1 COPTFLAGS='-O3 -march=native
-mtune=native' CXXOPTFLAGS='-O3 -march=native -mtune=native' FOPTFLAGS='-O3
-march=native -mtune=native' --download-f2cblaslapack


Any hints or suggestions are welcome. Thanks so much in advance!

Santiago
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