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-rw-r--r--gnu/packages/bioinformatics.scm1
1 files changed, 1 insertions, 0 deletions
diff --git a/gnu/packages/bioinformatics.scm b/gnu/packages/bioinformatics.scm
index 7dc1bc48ce..1c5a5c2eeb 100644
--- a/gnu/packages/bioinformatics.scm
+++ b/gnu/packages/bioinformatics.scm
@@ -1658,6 +1658,7 @@ in terms of new algorithms.")
     (arguments
      `(#:tests? #f ; no "check" target
        #:make-flags (list
+                     "CFLAGS=-O2" ; override "-m64" flag
                      (string-append "PREFIX=" (assoc-ref %outputs "out"))
                      (string-append "MANDIR=" (assoc-ref %outputs "out")
                                     "/share/man/man1"))