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-rw-r--r--digital/avr/modules/usb/Makefile.module3
1 files changed, 2 insertions, 1 deletions
diff --git a/digital/avr/modules/usb/Makefile.module b/digital/avr/modules/usb/Makefile.module
index 53fc6a1b..7526dfe0 100644
--- a/digital/avr/modules/usb/Makefile.module
+++ b/digital/avr/modules/usb/Makefile.module
@@ -2,6 +2,7 @@ usb_SOURCES = DevChapter9.c Endpoint.c LowLevel.c \
Events.c StdDescriptors.c USBInterrupt.c USBTask.c
vpath %.c $(BASE)/modules/usb/lufa/LUFA/Drivers/USB/LowLevel
vpath %.c $(BASE)/modules/usb/lufa/LUFA/Drivers/USB/HighLevel
-CFLAGS += -std=gnu99 -fpack-struct -fshort-enums -ffunction-sections
+CFLAGS += -std=gnu99 -fgnu89-inline -fpack-struct -fshort-enums \
+ -ffunction-sections
CPPFLAGS += -I$(BASE)/modules/usb/lufa
LDFLAGS += -Wl,--relax -Wl,--gc-sections