build failure: No rule to make target '/usr/include/linux/limits.h'

[Szabolcs Nagy]

On 05/09/17 21:56, Joseph Myers wrote:
> On Tue, 5 Sep 2017, Szabolcs Nagy wrote:
> 
>> somehow glibc managed to include stuff from outside of
>> the source or build tree.. i don't immediately see why.
> 
> Are there any .d files containing references to files from D/include?  
> (Depending on whether you're using --with-headers to point to an external 
> set of kernel headers, references to kernel headers in /usr/include may be 
> expected.)
> 

i didn't use --with-headers and there is no D/include
or D/build/../include in .d or .dt files.

>> anyway it would be nice if glibc *never* tried to overwrite
>> headers in /usr/include/* while i'm running make.
> 
> Dependencies for such files are how "make install" works.  There are lots 

yes, but i only used 'make', not 'make install',
so i don't expect anything to be installed.

> of such rules, both in the checked-in sources and in sysd-rules, but I 
> don't know why one would involve a dependency on 
> D/build/../include/linux/limits.h.
> 

stracing make it seems make fstats about 400 different
paths ending in /linux before it finds

D/build/../include/linux/limits.h

then it prints

make[2]: Entering directory 'D/glibc/iconv'
/usr/bin/install -c -m 644 D/build/../include/linux/limits.h /usr/include/linux/limits.h

among others it tries paths

D/build/../sysdeps/*/linux
D/build/../include/linux

/usr/include/linux/limits.h appears in D/build/iconv/*.d
files as dependency so i guess there is some broken rule
to remake such headers.