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From: | Paul Brook |
Subject: | Re: [Qemu-devel] [PATCH] CPPFLAGS+= in Makefile.target |
Date: | Fri, 25 Jan 2008 15:53:36 +0000 |
User-agent: | KMail/1.9.7 |
On Friday 25 January 2008, Ian Jackson wrote: > Paul Brook writes ("Re: [Qemu-devel] [PATCH] CPPFLAGS+= in Makefile.target"): > > In that case you should always provide a definition in config-host.mak. > > Under some circumstances make may inherit initial values from elsewhere. > > What circumstances ? CPPFLAGS+= overrides (discards) values in the > environment as well as ones from the command line. $ cat Makefile FOO += World all: @echo "$(FOO)" $ FOO=Hello make Hello World
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