From ec7e9eeae6167bc5b16673d448e710468216ca05 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>
Date: Thu, 15 Jun 2017 14:45:08 +0200
Subject: [PATCH] gnu: sablevm: Build reproducibly.

* gnu/packages/java.scm (sablevm)[arguments]: Add build phase
"remove-timestamp-for-reproducibility".
---
 gnu/packages/java.scm | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/gnu/packages/java.scm b/gnu/packages/java.scm
index 1496af7591198d096a0851750fb60f9dcefd2759..7bdf97f98a47b82e1eec445878fa2b2855e5ebe8 100644
--- a/gnu/packages/java.scm
+++ b/gnu/packages/java.scm
@@ -167,6 +167,11 @@ This package provides the classpath library.")
              "--with-internal-libpopt=no")
        #:phases
        (modify-phases %standard-phases
+         (add-after 'unpack 'remove-timestamp-for-reproducibility
+           (lambda _
+             (substitute* "src/sablevm/Makefile.in"
+               (("\\$\\(SVMCOMPILETIME\\)") "(unknown)"))
+             #t))
          (add-after 'unpack 'link-with-popt
            (lambda _
              (substitute* "src/sablevm/Makefile.in"