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-rw-r--r--digital/io/src/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/digital/io/src/Makefile b/digital/io/src/Makefile
index 76f60940..4c50ba71 100644
--- a/digital/io/src/Makefile
+++ b/digital/io/src/Makefile
@@ -20,7 +20,7 @@ CONFIGFILE = avrconfig.h
AVR_MCU = atmega128
# Optimize for speed.
OPTIMIZE = -O2
-HOST_LIBS = -lm
+LIBS = -lm
vpath %.c $(AI_MODULES:%=../../ai/src/%)
vpath %.h $(AI_MODULES:%=../../ai/src/%)