gnu: julia: Upgrade to 1.3.1.

* gnu/packages/julia.scm (libuv-julia): Upgrade to 2.0.0-1.35b1504.
(libunwind-julia): New variable.
(llvm-patch): Rename to ...
(julia-patch): ... this. Update to 1.3.1.
(llvm-julia): Adjust patch-set based on above change. Adjust indent.
(julia): Update to 1.3.1.
[source]: Add patch.
[arguments]: Adjust custom 'prepare-deps (llvm-patch): Rename to ...
(julia-patch): ... this. Update to 1.3.1.
(llvm-julia): Adjust patch-set based on above change.
(julia): Upgrade to 1.3.1.
[arguments]: Adjust custom 'prepare-deps phase based on changed inputs.
Remove most of 'hardcode-soname-map. Adjust 'fix-include-and-link-paths.
Add new 'fix-precompile phase. Adjust custom 'disable-broken-tests
phase. Add new 'make-wrapper phase. Adjust make-flags.
[inputs]: Add p7zip, mbedtls-apache, curl libssh2.
Remove openspecfun, fftw, fftwf, python2-virtualenv, rmath.
Replace libunwind with libunwind-julia, custom suitesparse with system
suitesparse, custom dsfmt with system dsfmt.
[native-search-paths]: Add JULIA_DEPOT_PATH.
* gnu/packages/patches/julia-SOURCE_DATE_EPOCH-mtime.patch: New file.
* gnu/local.mk (dist_patch_DATA): Register it.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu/local.mk

@@ -29,6 +29,7 @@
 # Copyright © 2020 Brendan Tildesley <mail@brendan.scot>
 # Copyright © 2020 Vincent Legoll <vincent.legoll@gmail.com>
 # Copyright © 2020 R Veera Kumar <vkor@vkten.in>
+# Copyright © 2020 Nicolò Balzarotti <nicolo@nixo.xyz
 #
 # This file is part of GNU Guix.
 #
@@ -1065,6 +1066,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/jfsutils-add-sysmacros.patch		\
   %D%/packages/patches/jfsutils-include-systypes.patch		\
   %D%/packages/patches/jsoncpp-fix-inverted-case.patch		\
+  %D%/packages/patches/julia-SOURCE_DATE_EPOCH-mtime.patch	\
   %D%/packages/patches/kdbusaddons-kinit-file-name.patch	\
   %D%/packages/patches/libnftnl-dont-check-NFTNL_FLOWTABLE_SIZE.patch	\
   %D%/packages/patches/libvirt-create-machine-cgroup.patch	\

gnu/packages/patches/julia-SOURCE_DATE_EPOCH-mtime.patch

+--- /dev/null
++++ b/gnu/packages/patches/julia-SOURCE_DATE_EPOCH-mtime.patch
+@@ -0,0 +1,22 @@
++Fix one of upstream non-determinism, tracked here:
++
++https://github.com/JuliaLang/julia/issues/34115
++https://github.com/JuliaLang/julia/issues/25900
++
++
++Patch by Nicoló Balzarotti <nicolo@nixo.xyz>.
++
++--- a/base/loading.jl
+++++ b/base/loading.jl
++@@ -807,7 +807,10 @@
++         path = normpath(joinpath(dirname(prev), _path))
++     end
++     if _track_dependencies[]
++-        push!(_require_dependencies, (mod, path, mtime(path)))
+++          push!(_require_dependencies,
+++                (mod, path,
+++                 haskey(ENV, "SOURCE_DATE_EPOCH") ?
+++                 parse(Float64, ENV["SOURCE_DATE_EPOCH"]) : mtime(path)))
++     end
++     return path, prev
++ end
+-- 
+2.26.0
+