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-rw-r--r--gnu/packages/elixir.scm20
1 files changed, 16 insertions, 4 deletions
diff --git a/gnu/packages/elixir.scm b/gnu/packages/elixir.scm
index 88ada71aea..144a8cc4e7 100644
--- a/gnu/packages/elixir.scm
+++ b/gnu/packages/elixir.scm
@@ -33,7 +33,7 @@
 (define-public elixir
   (package
     (name "elixir")
-    (version "1.8.2")
+    (version "1.9.2")
     (source
      (origin
        (method git-fetch)
@@ -42,7 +42,7 @@
              (commit (string-append "v" version))))
        (file-name (git-file-name name version))
        (sha256
-        (base32 "1n77cpcl2b773gmj3m9s24akvj9gph9byqbmj2pvlsmby4aqwckq"))
+        (base32 "19yn6nx6r627f5zbyc7ckgr96d6b45sgwx95n2gp2imqwqvpj8wc"))
        (patches (search-patches "elixir-path-length.patch"))))
     (build-system gnu-build-system)
     (arguments
@@ -63,9 +63,21 @@
                               "lib/mix/lib/mix/scm/git.ex")
                  (("(cmd\\(['\"])git" _ prefix)
                   (string-append prefix (which "git"))))
+               (substitute* '("lib/mix/lib/mix/release.ex"
+                              "lib/mix/lib/mix/tasks/release.init.ex")
+                 (("#!/bin/sh")
+                  (string-append "#!" (which "sh"))))
                (substitute* "bin/elixir"
-                 (("ERL_EXEC=\"erl\"")
-                  (string-append "ERL_EXEC=" (which "erl"))))
+                 (("ERTS_BIN=")
+                  (string-append
+                    "ERTS_BIN="
+                    ;; Elixir Releases will prepend to ERTS_BIN the path of a copy of erl.
+                    ;; We detect if a release is being generated by checking the initial ERTS_BIN
+                    ;; value: if it's empty, we are not in release mode and can point to the actual
+                    ;; erl binary in Guix store.
+                    "\nif [ -z \"$ERTS_BIN\" ]; then ERTS_BIN="
+                    (string-drop-right (which "erl") 3)
+                    "; fi")))
                (substitute* "bin/mix"
                  (("#!/usr/bin/env elixir")
                   (string-append "#!" out "/bin/elixir"))))