[MacPorts] #58895: OpenBLAS @0.3.7 +native build failure: ld: library not found for -lSystem

[MacPorts]

#58895: OpenBLAS @0.3.7 +native build failure: ld: library not found for -lSystem
-----------------------+-------------------------
  Reporter:  prbuen    |      Owner:  NicosPavlov
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  OpenBLAS  |
-----------------------+-------------------------

Comment (by kencu):

 `clang` knows where to find the system libraries, but it appears your
 `gfortran` doesn't know where to look for them when linking:
 {{{
 :info:build /opt/local/bin/gfortran-mp-9 -O3 -m128bit-long-double -Wall
 -frecursive -fno-optimize-sibling-calls -m64  -mavx2  -o sblat1 sblat1.o
 ../libopenblas-r1.a -lpthread -lgfortran -lpthread -lgfortran
 :info:build ld: library not found for -lSystem
 }}}

 That's kinda weird, really. But `ld` needs to know or be passed the
 location of the system libraries for the link to succeed.

-- 
Ticket URL: <https://trac.macports.org/ticket/58895#comment:3>
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