Re: [gentoo-embedded] Is a compilation depend on the running kernel?

[Enrico Weigelt]

* Kfir Lavi <lavi.kfir@×××××.com> schrieb:

> Does configure tests check the running kernel for compiled in interfaces?

Actually, I've already seen packages doing such crap.
On autoconf'ed packages, just look for AC_TRY_RUN or AC_CHECK_FILE,
etc, and you'll know the package is ill-designed.

> If yes, lets say I have very lean kernel on the target, how I can compile
> against the target kernel?

#1: always use a sysroot'ed toolchain with matching kernel headers.
    (crosstool-ng is your friend)
#2: for testing, additionally use an cross-toolchain which produces
    binaries that cannot be executed on your machine (so all attempts
    to run tests on the building system radically fail)
#3: on autotool'ed packages, look for crap like AC_TRY_RUN, etc
    and fix it
#4: join the oss-qm project ;-p


cu
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 Enrico Weigelt, metux IT service -- http://www.metux.de/

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 Embedded-Linux / Portierung / Opensource-QM / Verteilte Systeme
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