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build: Add gcc option -std=gnu11 

Some older versions of gcc require this flag in order to compile the
code correctly.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-05-17 12:17:43 -04:00
parent 42ca985bef
commit e3e3aa63d7
1 changed files with 1 additions and 1 deletions
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2
Makefile
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@ -32,7 +32,7 @@ dirs-y = src
cc-option=$(shell if test -z "`$(1) $(2) -S -o /dev/null -xc /dev/null 2>&1`" \
; then echo "$(2)"; else echo "$(3)"; fi ;)
CFLAGS := -I$(OUT) -Isrc -I$(OUT)board-generic/ -O2 -MD -g \
CFLAGS := -I$(OUT) -Isrc -I$(OUT)board-generic/ -std=gnu11 -O2 -MD -g \
-Wall -Wold-style-definition $(call cc-option,$(CC),-Wtype-limits,) \
-ffunction-sections -fdata-sections
CFLAGS += -flto -fwhole-program -fno-use-linker-plugin