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Warn if gcc version is lower than 4.8 #21

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Warn if gcc version is lower than 4.8 #21

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13 changes: 13 additions & 0 deletions Makefile
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Original file line number Diff line number Diff line change
@@ -1,3 +1,15 @@
# Warn if gcc version is lower than 4.8 (-Og was introduced in this version)

MIN_GCC_VERSION = "4.8"
GCC_VERSION := "`gcc -dumpversion`"
IS_GCC_ABOVE_MIN_VERSION := $(shell expr "$(GCC_VERSION)" ">=" "$(MIN_GCC_VERSION)")
ifeq "$(IS_GCC_ABOVE_MIN_VERSION)" "1"
GCC_VERSION_STRING := "GCC version OK $(GCC_VERSION) >= $(MIN_GCC_VERSION)"
else
GCC_VERSION_STRING := "ERROR: gcc version $(GCC_VERSION) is lower than $(MIN_GCC_VERSION), 'gcc -Og' might fail."
endif


#set environment variable RM_INCLUDE_DIR to the location of redismodule.h
ifndef RM_INCLUDE_DIR
RM_INCLUDE_DIR=./
Expand All @@ -15,6 +27,7 @@ endif
all: module.so

module.so:
@echo $(GCC_VERSION_STRING)
$(MAKE) -C ./$(SRC_DIR)
cp ./$(SRC_DIR)/module.so .

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