Unable to build math/blas

[Jan Danielsson <jan.m.danielsson%gmail.com@localhost>]

Hello,

   I'm building meta-pkgs/boost and math/blas is built as a dependency,
which causes:

===> Building for blas-3.7.0
( cd BLAS/SRC; /usr/bin/make )
/pkg_comp/obj/pkgsrc/math/blas/default/.cwrapper/bin/libtool
--mode=compile --tag=FC g95 -O -c xerbla.f
libtool-fortran: compile:  g95 -O -c xerbla.f  -o .libs/xerbla.o
xerbla.f:
   xerbla:
Error on line 76 of xerbla.f: Declaration error for len_trim: unknown
intrinsic function
*** Error code 1

   I'm building on NetBSD/amd64 -7, using clang.  This looks like a
fortran issue, so I'm completely lost.  :)

   Also:

   PKGSRC_COMPILER=ccache clang f2c

   I've always had f2c there because a long time ago someone said it's
needed to build fortran77 code, since there is no Fortran support in
clang.  Is this still true?

-- 
Kind regards,
Jan Danielsson