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Old 06-28-2011, 04:37 PM
Default demanual update

On 6/28/11 6:23 PM, Mike Frysinger wrote:
> On Tuesday, June 28, 2011 02:54:03 Michał Górny wrote:
>> On Tue, 28 Jun 2011 10:16:06 +0400 Peter Volkov wrote:
>>> But still our documentation explicitly suggests ':' for CFLAGS cases
>>> and example allows bash substitution.
>>> http://devmanual.gentoo.org/ebuild-writing/functions/src_compile/building
>>> /index.html see example in "Fixing Compiler Usage" section and text
>>> below:
>>> sed -i -e "s:cc -O2:$(tc-getCC) ${CFLAGS} ${LDFLAGS}:" build.sh
>>> Are there any objections to suggest '|' for CFLAGS, LDFLAGS (see
>>> attachment)?
>> I think that also a good idea may be to provide an Makefile example,
>> showing that often sed is unnecessary, and it's enough to do things
>> like:
>> emake CC="$(tc-getCC)" CFLAGS="${CFLAGS}"...
> this is easily dangerous when it comes to packages (and many do) that append
> in the Makefile. specifying on the command line blocks those while passing
> via env works fine. i'm not sure it's appropriate to provide as an example.
> -mike

There are cases and cases. You are right with what you said. But cases
where the makefile appends stuff are not the typical cases where a sed
is applied. Normally sed is used if upstream hardcodes FLAGS we don't
want. And there the passing with emake is the appropriate safer way for
a fix.


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