[vlc-devel] [PATCH] contrib: add a bootstrap option to allow using prebuilt packages when cross-compiling

Rémi Denis-Courmont remi at remlab.net
Mon Feb 3 10:15:15 CET 2020

No no, I'm suggesting that there should *not* be a dedicated option to turn pkg-config in non-native builds.

Le 3 février 2020 10:02:32 GMT+02:00, Steve Lhomme <robux4 at ycbcr.xyz> a écrit :
>On 2020-02-02 13:13, Rémi Denis-Courmont wrote:
>> Le dimanche 2 février 2020, 14:02:16 EET Alexandre Janniaux a écrit :
>>>> There are no valid reasons to disable pkg-config if it is correctly
>>>> (i.e., to the correct platform/directories). It won't find what's
>>>> to be found. To take the extreme, if you wanted to compile VLC for
>>>> (which won't work as is), you would anyway have the dedicated
>>>> arm-none-... triplets, and you wouldn't hit any "wrong" packages.
>>> For instance, I build for (linaro-)aarch64-linux-gnu which
>>> might become the same triplet name as raspberry one day,
>>> and have /usr/aarch64-linux-gnu/ on my machine.
>> And then what? If you need a different SDK with the same triplet, you
>have th
>> same cross-tool names, so you need a different directories prefix.
>> makes no difference here: first and foremost, you need to point to
>the correct C
>> compiler and C headers and run-time libraries.
>> Just like if you *natively* build for a different distro.
>> Point being, this has nothing to do with pkg-config and nothing to do
>> cross-compilation, and thus I don't see why there should be a cross-
>> compilation-specific pkg-config-specific flag for that.
>Are you suggesting to use TRIPLET-pkg-config even when not cross 
>compiling ? That could work (with the same fallback to pkg-config + 
>custom PKG_CONFIG_LIBDIR if not found).
>We should also make sure we use the same PKG_CONFIG (and its 
>environment) between the contribs and VLC, as said earlier in the 
>thread. For example as I mentioned autotools uses 
>x86_64-w64-mingw32-pkg-config when cross compiling for Win64. Except, 
>this pkg-config doesn't work and will never find anything on the
>It would have been better to use a working pkg-config with proper 
>PKG_CONFIG_LIBDIR, if the user wants to provide pre-compiled things.
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