Building executable from sources is made easy by Makefiles. If a build has to be done by checking the version of the build compiler, then the Makefile can be altered for that.
For example, building C sources using GCC compiler. If the C sources require the C++11 standard supported compiler, then the GCC compiler to be used should be greater than or equal to GCC-4.7. If the build environment has the GCC of version lesser than 4.7, then the build will fail.
For this case, the Makefile can be altered with the following check for GCC version:
GCCMAJORVERSIONGTE4 := $(shell expr `gcc -dumpversion | cut -f1 -d.` \>= 4)
GCCMINORVERSIONGTE7 := $(shell expr `gcc -dumpversion | cut -f2 -d.` \>= 7)
all:
ifeq ($(GCCMAJORVERSIONGTE4)$(GCCMINORVERSIONGTE7), 11)
@echo BUILD
else
@echo NO BUILD
endif
For example, building C sources using GCC compiler. If the C sources require the C++11 standard supported compiler, then the GCC compiler to be used should be greater than or equal to GCC-4.7. If the build environment has the GCC of version lesser than 4.7, then the build will fail.
For this case, the Makefile can be altered with the following check for GCC version:
GCCMAJORVERSIONGTE4 := $(shell expr `gcc -dumpversion | cut -f1 -d.` \>= 4)
GCCMINORVERSIONGTE7 := $(shell expr `gcc -dumpversion | cut -f2 -d.` \>= 7)
all:
ifeq ($(GCCMAJORVERSIONGTE4)$(GCCMINORVERSIONGTE7), 11)
@echo BUILD
else
@echo NO BUILD
endif
1 comment:
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