branch master updated: gnu: blast+: Build reproducibly.

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The following commit(s) were added to refs/heads/master by this push:
     new 1ee2d117d8 gnu: blast+: Build reproducibly.
1ee2d117d8 is described below

commit 1ee2d117d8fa9e2e0d4ec46cc5555497bb5e6337
Author: Ricardo Wurmus <rekado@elephly.net>
AuthorDate: Thu Sep 29 23:17:19 2022 +0200

    gnu: blast+: Build reproducibly.
    
    Fixes <https://issues.guix.gnu.org/42141>.
    
    * gnu/packages/bioinformatics.scm (blast+)[source]: Do not record kernel
    version and use fix set of random numbers.
---
 gnu/packages/bioinformatics.scm | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index a034bf134e..ca341a45a7 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -1656,7 +1656,27 @@ package provides command line tools using the Bio++ 
library.")
                   ;; Remove useless msbuild directory
                   (delete-file-recursively
                    "c++/src/build-system/project_tree_builder/msbuild")
-                  #t))))
+
+                  ;; Build reproducibly.
+                  ;; Do not record the kernel version
+                  (substitute* "c++/src/build-system/configure"
+                    (("kver=.*") "kver=\"\""))
+                  ;; Do not generate random numbers.
+                  (substitute* 
"c++/scripts/common/impl/define_random_macros.sh"
+                    (("#define NCBI_RANDOM_VALUE_MAX  0xffffffffu" m)
+                     (string-append m "
+#define NCBI_RANDOM_VALUE_0    2845495105u
+#define NCBI_RANDOM_VALUE_1    2158634051u
+#define NCBI_RANDOM_VALUE_2    4072202242u
+#define NCBI_RANDOM_VALUE_3    902228395u
+#define NCBI_RANDOM_VALUE_4    1353323915u
+#define NCBI_RANDOM_VALUE_5    574823513u
+#define NCBI_RANDOM_VALUE_6    4119501261u
+#define NCBI_RANDOM_VALUE_7    2477640938u
+#define NCBI_RANDOM_VALUE_8    2776595395u
+#define NCBI_RANDOM_VALUE_9    270550684u
+"))
+                    (("cksum") "cksum >/dev/null"))))))
     (build-system gnu-build-system)
     (arguments
      `(;; There are two(!) tests for this massive library, and both fail with