[Buildroot] [PATCH 1/3] package/openblas: fix build on mips64 n32

BR2_ARCH_IS_64 is set for mips64/mips64el even when the n32 ABI is
used, so openblas was built with BINARY=64. Its build system then
passes -mabi=64, which conflicts with the n32 sysroot:

  gnu/stubs.h:35:11: fatal error: gnu/stubs-n64_hard.h: No such file
  or directory

For openblas, BINARY refers to the pointer size rather than to the
architecture, and n32 uses 32-bit pointers, so BINARY=32 is correct
there.

Signed-off-by: Dario Binacchi <[email protected]>
---
 package/openblas/openblas.mk | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/package/openblas/openblas.mk b/package/openblas/openblas.mk
index 9a3bb42496ab..a5bf68f69913 100644
--- a/package/openblas/openblas.mk
+++ b/package/openblas/openblas.mk
@@ -49,7 +49,9 @@ ifeq ($(BR2_STATIC_LIBS),y)
 OPENBLAS_MAKE_OPTS += NO_SHARED=1
 endif
 
-ifeq ($(BR2_ARCH_IS_64),y)
+# mips64 n32 is a 64-bit architecture, but with 32-bit pointers, so
+# openblas must be built with BINARY=32
+ifeq ($(BR2_ARCH_IS_64)$(BR2_MIPS_NABI32),y)
 OPENBLAS_MAKE_OPTS += BINARY=64
 else
 OPENBLAS_MAKE_OPTS += BINARY=32
-- 
2.43.0

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