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Minor build system fixes
Usual build system fixes to allow CC/CFLAGS/LDFLAGS to be overriden
from the command line, and completed by additional flags from the
Makefile.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Index: b/Makefile
===================================================================
--- a/Makefile
+++ b/Makefile
@@ -12,9 +12,10 @@
# (at your option) any later version.
#
-CC = gcc
-CFLAGS = -W -Wall -Wshadow -Wstrict-prototypes -Wpointer-arith -Wcast-qual \
- -Wcast-align -Wwrite-strings -Wmissing-prototypes -Winline -Wundef
+CC ?= gcc
+override CFLAGS += \
+ -W -Wall -Wshadow -Wstrict-prototypes -Wpointer-arith -Wcast-qual \
+ -Wcast-align -Wwrite-strings -Wmissing-prototypes -Winline -Wundef
# Let lseek and mmap support 64-bit wide offsets
CFLAGS += -D_FILE_OFFSET_BITS=64
@@ -27,7 +28,7 @@ CFLAGS += -O2
#CFLAGS += -g
# Pass linker flags here
-LDFLAGS =
+override LDFLAGS +=
DESTDIR =
prefix = /usr/local
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