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-rw-r--r--core/envsetup.mk4
1 files changed, 4 insertions, 0 deletions
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 43774ea..75391e1 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -72,6 +72,10 @@ ifneq (,$(findstring x86_64,$(UNAME)))
HOST_ARCH := x86_64
HOST_2ND_ARCH := x86
HOST_IS_64_BIT := true
+else
+ifneq (,$(findstring x86,$(UNAME)))
+$(error Building on a 32-bit x86 host is not supported: $(UNAME)!)
+endif
endif
BUILD_ARCH := $(HOST_ARCH)