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-rw-r--r--src/stm/Makefile.defs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/stm/Makefile.defs b/src/stm/Makefile.defs
index c3d2707f..0ba86f5a 100644
--- a/src/stm/Makefile.defs
+++ b/src/stm/Makefile.defs
@@ -27,7 +27,7 @@ LIBS=$(PDCLIB_LIBS_M3) -lgcc
WARN_FLAGS=-Wall -Wextra -Werror
AO_CFLAGS=-I. -I../stm -I../kernel -I../drivers -I../math -I.. $(PDCLIB_INCLUDES)
-STM_CFLAGS=-std=gnu99 -mlittle-endian -mcpu=cortex-m3 -mthumb \
+STM_CFLAGS=-std=gnu99 -mlittle-endian -mcpu=cortex-m3 -mthumb -Wcast-align \
-ffreestanding -nostdlib $(AO_CFLAGS) $(WARN_FLAGS)
LDFLAGS=-L../stm -Wl,-Taltos.ld