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authorPauli Virtanen <pav@iki.fi>2019-12-01 15:41:25 +0200
committerPauli Virtanen <pav@iki.fi>2019-12-01 15:41:25 +0200
commit3892cad45c6318a5828ea2a80c896ac648c293fc (patch)
tree216ed30c8bf98731b21f42d0d994d083c3f94eb8 /site.cfg.example
parent33a2fcb4aebba8f80fdf12a7ecef879a3aaa0e63 (diff)
downloadnumpy-3892cad45c6318a5828ea2a80c896ac648c293fc.tar.gz
DOC: document NPY_USE_BLAS64_ environment variable
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diff --git a/site.cfg.example b/site.cfg.example
index 97253fee2..a58039df3 100644
--- a/site.cfg.example
+++ b/site.cfg.example
@@ -140,6 +140,9 @@
# This is an emerging "standard" for 64-bit BLAS/LAPACK, avoiding symbol clashes
# with 32-bit BLAS/LAPACK.
#
+# To build Numpy with such 64-bit BLAS/LAPACK, set environment variable
+# NPY_USE_BLAS64_=1 at build time.
+#
# See:
# https://github.com/xianyi/OpenBLAS/issues/646
#