GNU bug report logs - #31678
[PATCH 0/2] Elixir and Erlang improvements

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From: Christopher Baines <mail <at> cbaines.net>
To: 31678 <at> debbugs.gnu.org
Subject: [bug#31678] [PATCH 1/2] gnu: erlang: Patch occurrences of /bin/sh in the source.
Date: Fri,  1 Jun 2018 14:51:05 +0100

Previously, the elixir package would often fail to build, as running :os:cmd
would fail, as /bin/sh doesn't exist when building the elixir package. These
changes fix that issue.

* gnu/packages/erlang.scm (erlang)[arguments]: Add new patch-/bin/sh phase to
replace hardcoded references to /bin/sh with a file in the store.
---
 gnu/packages/erlang.scm | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/gnu/packages/erlang.scm b/gnu/packages/erlang.scm
index 0e2b7b5bc..1fce57388 100644
--- a/gnu/packages/erlang.scm
+++ b/gnu/packages/erlang.scm
@@ -127,6 +127,27 @@
                   (date->string source-date-epoch
                                 "{H,Mi,S} = {~H,~M,~S},")))
                #t)))
+         (add-after 'unpack 'patch-/bin/sh
+           (lambda _
+             (substitute* "erts/etc/unix/run_erl.c"
+               (("sh = \"/bin/sh\";")
+                (string-append "sh = \""
+                               (which "sh")
+                               "\";")))
+
+             (substitute* "erts/emulator/sys/unix/sys_drivers.c"
+               (("SHELL \"/bin/sh\"")
+                (string-append "SHELL \""
+                               (which "sh")
+                               "\"")))
+             (substitute* "erts/emulator/sys/unix/erl_child_setup.c"
+               (("SHELL \"/bin/sh\"")
+                (string-append "SHELL \""
+                               (which "sh")
+                               "\"")))
+
+             (substitute* "lib/kernel/src/os.erl"
+               (("/bin/sh") (which "sh")))))
          (add-after 'patch-source-shebangs 'patch-source-env
            (lambda _
              (let ((escripts
-- 
2.17.1

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