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Merge pull request #164 from juvasquezg/master

Makefile: GCC version guard for -fstack-protector-strong
This commit is contained in:
Max Bruckner 2017-05-03 23:08:24 +02:00 committed by GitHub
commit eb6dd6ef6b

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@ -21,7 +21,17 @@ INSTALL_LIBRARY_PATH = $(DESTDIR)$(PREFIX)/$(LIBRARY_PATH)
INSTALL ?= cp -a
R_CFLAGS = -fPIC -std=c89 -pedantic -Wall -Werror -Wstrict-prototypes -Wwrite-strings -Wshadow -Winit-self -Wcast-align -Wformat=2 -Wmissing-prototypes -Wstrict-overflow=2 -Wcast-qual -Wc++-compat -Wundef -Wswitch-default -Wconversion -fstack-protector-strong $(CFLAGS)
# validate gcc version for use fstack-protector-strong
MIN_GCC_VERSION = "4.9"
GCC_VERSION := "`gcc -dumpversion`"
IS_GCC_ABOVE_MIN_VERSION := $(shell expr "$(GCC_VERSION)" ">=" "$(MIN_GCC_VERSION)")
ifeq "$(IS_GCC_ABOVE_MIN_VERSION)" "1"
CFLAGS += -fstack-protector-strong
else
CFLAGS += -fstack-protector
endif
R_CFLAGS = -fPIC -std=c89 -pedantic -Wall -Werror -Wstrict-prototypes -Wwrite-strings -Wshadow -Winit-self -Wcast-align -Wformat=2 -Wmissing-prototypes -Wstrict-overflow=2 -Wcast-qual -Wc++-compat -Wundef -Wswitch-default -Wconversion $(CFLAGS)
uname := $(shell sh -c 'uname -s 2>/dev/null || echo false')