From 3320b70f4dbb9bd8d4f782975111f32d0d045edb Mon Sep 17 00:00:00 2001
From: Ludovic Courtès <ludo@gnu.org>
Date: Wed, 12 May 2021 22:34:50 +0200
Subject: gnu: libgc: Add variant with '--disable-munmap'.

* gnu/packages/bdw-gc.scm (libgc/disable-munmap): New variable.
---
 gnu/packages/bdw-gc.scm | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/bdw-gc.scm b/gnu/packages/bdw-gc.scm
index 50e4951dc1..ecac5b9368 100644
--- a/gnu/packages/bdw-gc.scm
+++ b/gnu/packages/bdw-gc.scm
@@ -1,5 +1,5 @@
 ;;; GNU Guix --- Functional package management for GNU
-;;; Copyright © 2012, 2013, 2014, 2016, 2017, 2020 Ludovic Courtès <ludo@gnu.org>
+;;; Copyright © 2012, 2013, 2014, 2016, 2017, 2020, 2021 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2014 Mark H Weaver <mhw@netris.org>
 ;;; Copyright © 2016, 2018 Leo Famulari <leo@famulari.name>
 ;;; Copyright © 2017 Rene Saavedra <rennes@openmailbox.org>
@@ -85,6 +85,17 @@ C or C++ programs, though that is not its primary goal.")
 
    (license (x11-style (string-append home-page "license.txt")))))
 
+(define-public libgc/disable-munmap
+  ;; TODO: Use '--disable-munmap' by default on next rebuild cycle.
+  (package/inherit libgc
+    (arguments
+     ;; Work around <https://github.com/ivmai/bdwgc/issues/353>.
+     (substitute-keyword-arguments (package-arguments libgc)
+       ((#:configure-flags flags ''())
+        `(cons "--disable-munmap" ,flags))))
+    (properties `((hidden? . #t)
+                  ,@(package-properties libgc)))))
+
 ;; TODO: Add a static output in libgc in the next rebuild cycle.
 (define-public libgc/static-libs
   (package/inherit
-- 
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