Date: Mon, 5 Oct 2015 21:24:01 -0500 From: Rob Landley <rob@...dley.net> To: Rich Felker <dalias@...ifal.cx> Cc: Denys Vlasenko <vda.linux@...glemail.com>, Aboriginal Linux <aboriginal@...ts.landley.net>, musl@...ts.openwall.com Subject: Re: musl and kernel headers [was Re: system-images 1.4.2: od is broken; bzip2 is missing] On 10/05/2015 08:44 PM, Rich Felker wrote: > On Mon, Oct 05, 2015 at 10:08:10AM -0500, Rob Landley wrote: > The cleaner approach is just avoiding including both the kernel > headers and libc/userspace headers for the same things in the same > file. In theory this may be hard in some cases, but I find that I can > almost always fix these sorts of errors during a build by commenting > out one or two #include lines. I am _deeply_ curious how you'd get linux/loop.h on a platform where you need the 32 bit loopback structure definition without including the kernel header. I struggled with that one a lot back in the busybox days. (For the 64 bit version you can block copy the structure out of the header into your program, just like you can block copy everything out of headers and never actually #include anything, in the name of portability!) Sadly, the kernel headers are exported for a _reason_. If I need to syscall something you haven't wrapped, I need the _NR_ and it varies per target. It's a thing. Rob
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