A good way to set sub-target switch
Ian Lance Taylor
Fri Jan 16 18:26:00 GMT 2009
"Doug Kwan (關振德)" <email@example.com> writes:
> I tried CFLAGS_FOR_TARGET, CXXFLAGS_FOR_TARGET, and
> LIBCFLAGS_FOR_TARGET and LIBCXXFLAGS_FOR_TARGET but these got dropped
> by libtool. I don't know if that is a feature of libtool or not.
libtool won't use them, but that isn't how it works. When the top
level Makefile builds target-libstdc++-v3, it passes
CFLAGS=$(CFLAGS_FOR_TARGET). You do have to run make at the top
level, always. (Although, if you set CFLAGS_FOR_TARGET when you run
configure, then I believe that that will become the default CFLAGS for
the target libraries).
This may not apply to the Android libc--it depends on how the
configury/make was set up. It should work for libstdc++-v3. I've
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