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-rw-r--r--makefiles/toolchain_gnu-arm-eabi.mk2
1 files changed, 1 insertions, 1 deletions
diff --git a/makefiles/toolchain_gnu-arm-eabi.mk b/makefiles/toolchain_gnu-arm-eabi.mk
index 1bbc5437d..5a7f8390f 100644
--- a/makefiles/toolchain_gnu-arm-eabi.mk
+++ b/makefiles/toolchain_gnu-arm-eabi.mk
@@ -116,7 +116,7 @@ ARCHOPTIMIZATION = $(MAXOPTIMIZATION) \
# enable precise stack overflow tracking
# note - requires corresponding support in NuttX
-INSTRUMENTATIONDEFINES = $(ARCHINSTRUMENTATIONDEFINES_$(CONFIG_ARCH))
+INSTRUMENTATIONDEFINES ?= $(ARCHINSTRUMENTATIONDEFINES_$(CONFIG_ARCH))
# Language-specific flags
#