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-rw-r--r--gnu/packages/mpi.scm3
1 files changed, 1 insertions, 2 deletions
diff --git a/gnu/packages/mpi.scm b/gnu/packages/mpi.scm
index 3337054223..3dd890ed62 100644
--- a/gnu/packages/mpi.scm
+++ b/gnu/packages/mpi.scm
@@ -134,8 +134,7 @@ bind processes, and much more.")
     (arguments
      `(#:configure-flags `("--enable-builtin-atomics"
 
-                           "--enable-mpi-ext=all"
-                           "--with-devel-headers"
+                           "--enable-mpi-ext=affinity" ;cr doesn't work
                            "--enable-memchecker"
                            "--with-sge"
                            ,(string-append "--with-valgrind="