Build error with libgfortran.so.5

[maleadt]

(v0.7) pkg> build Arpack
  Building Arpack → `~/Julia/depot/packages/Arpack/8rPU/deps/build.log`
┌ Error: Error building `Arpack`: 
│ ERROR: LoadError: LibraryProduct(nothing, ["libarpack"], :libarpack, "Prefix(/home/tbesard/Julia/depot/packages/Arpack/8rPU/deps/usr)") is not satisfied, cannot generate deps.jl!
│ Stacktrace:
│  [1] error at ./error.jl:33 [inlined]
│  [2] #write_deps_file#134(::Bool, ::Function, ::String, ::Array{LibraryProduct,1}) at /home/tbesard/Julia/depot/packages/BinaryProvider/mWAR/src/Products.jl:392
│  [3] write_deps_file(::String, ::Array{LibraryProduct,1}) at /home/tbesard/Julia/depot/packages/BinaryProvider/mWAR/src/Products.jl:379
│  [4] top-level scope at none:0
│  [5] include at ./boot.jl:317 [inlined]
│  [6] include_relative(::Module, ::String) at ./loading.jl:1034
│  [7] include(::Module, ::String) at ./sysimg.jl:29
│  [8] include(::String) at ./client.jl:393
│  [9] top-level scope at none:0
│ in expression starting at /home/tbesard/Julia/depot/packages/Arpack/8rPU/deps/build.jl:40
└ @ Pkg.Operations Operations.jl:973

shell> ldd /home/tbesard/Julia/depot/packages/Arpack/8rPU/deps/usr/lib/libarpack.so.2.0.0
        linux-vdso.so.1 (0x00007ffe23d82000)
        libopenblas64_.so.0 => not found
        libgfortran.so.4 => not found
        libm.so.6 => /usr/lib/libm.so.6 (0x00007fe2da67f000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007fe2da467000)
        libquadmath.so.0 => /usr/lib/libquadmath.so.0 (0x00007fe2da226000)
        libc.so.6 => /usr/lib/libc.so.6 (0x00007fe2d9e6a000)
        /usr/lib64/ld-linux-x86-64.so.2 (0x00007fe2dac6b000)

julia> Libdl.dlopen("libgfortran")
Ptr{Nothing} @0x00000018df9a7e80

julia> Libdl.dlpath(ans)
"/usr/lib/libgfortran.so.5"

This on Arch Linux

[maleadt]

Ah, JuliaLinearAlgebra/OpenBLASBuilder#2

[andreasnoack]

Dup of #5. I think you should be able to work around this if you rebuild OpenBLAS with GCC 7.