See an example to understand. Create a new Makefilewith the following content:
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Ifdef Define_vre
VRE = "Hello world!"
Else
endif
Ifeq ($ (OPT), define)
VRE? = "Hello world! First! "
endif
Ifeq ($ (OPT), add)
VRE + = "kelly!"
endif
Ifeq ($ (OPT), recover)
VRE: = "Hello world! again! "
endif
All
@echo $ (VRE)
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typing the following make command:
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Make define_vre=true opt=define output:Hello world!
Make define_vre=true opt=add output:Hello world! kelly!
Make define_vre=true opt=recover output:Hello world! again!
Make define_vre= opt=define output:Hello world! first!
Make define_vre= opt=add output:kelly!
Make define_vre= opt=recover output:Hello world! again!
1.Bad Magic Number
# # Booting image at 33000000 ...
Bad Magic number
OMAP5912 OSK # (tftp download good kernel after uimage stop here, can't start Kernel )
5.23 a.m. outside classes Linux Listening