fatal error: asm/errno.h: No such file or directory during bootstrap

[Georg-Johann Lay]

Hi, during bootstrap of trunk, I am getting
the error from $subject:

$ ../../gcc.gnu.org/bootstrap-trunk/configure
$ make

...

make[5]: Entering directory 
'/srv/local/gnu/build/gcc-boot/x86_64-pc-linux-gnu/32/libgcc'
# If this is the top-level multilib, build all the other
# multilibs.
/home/gnu/build/gcc-boot/./gcc/xgcc -B/home/gnu/build/gcc-boot/./gcc/ 
-B/usr/local/x86_64-pc-linux-gnu/bin/ 
-B/usr/local/x86_64-pc-linux-gnu/lib/ -isystem 
/usr/local/x86_64-pc-linux-gnu/include -isystem 
/usr/local/x86_64-pc-linux-gnu/sys-include    -g -O2 -m32 -O2  -g -O2 
-DIN_GCC    -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual 
-Wno-format -Wstrict-prototypes -Wmissing-prototypes 
-Wold-style-definition  -isystem ./include   -fpic -mlong-double-80 
-DUSE_ELF_SYMVER  -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector 
   -fpic -mlong-double-80 -DUSE_ELF_SYMVER  -I. -I. -I../../.././gcc 
-I../../../../../gcc.gnu.org/bootstrap-trunk/libgcc 
-I../../../../../gcc.gnu.org/bootstrap-trunk/libgcc/. 
-I../../../../../gcc.gnu.org/bootstrap-trunk/libgcc/../gcc 
-I../../../../../gcc.gnu.org/bootstrap-trunk/libgcc/../include 
-I../../../../../gcc.gnu.org/bootstrap-trunk/libgcc/config/libbid 
-DENABLE_DECIMAL_BID_FORMAT -DHAVE_CC_TLS  -DUSE_TLS -o _muldi3.o -MT 
_muldi3.o -MD -MP -MF _muldi3.dep -DL_muldi3 -c 
../../../../../gcc.gnu.org/bootstrap-trunk/libgcc/libgcc2.c 
-fvisibility=hidden -DHIDE_EXPORTS
In file included from /usr/include/bits/errno.h:24,
                  from /usr/include/errno.h:35,
                  from 
../../../../../gcc.gnu.org/bootstrap-trunk/libgcc/../gcc/tsystem.h:93,
                  from 
../../../../../gcc.gnu.org/bootstrap-trunk/libgcc/libgcc2.c:27:
/usr/include/linux/errno.h:1:10: fatal error: asm/errno.h: No such file 
or directory
  #include <asm/errno.h>
           ^~~~~~~~~~~~~
compilation terminated.
Makefile:494: recipe for target '_muldi3.o' failed

Any ideas what goes wrong?

System is Ubuntu 16.04.2 LTS "xenial" x86_64

Searching the web I came across

https://askubuntu.com/questions/530248/asm-errno-h-no-such-file-or-directory

Which proposes "sudo apt-get install linux-libc-dev" which didn't
change anything (no files added or updated), same error.

errno.h shows the following include order:

$ echo "#include <errno.h>" | gcc -xc - -H
. /usr/include/errno.h
.. /usr/include/features.h
... /usr/include/x86_64-linux-gnu/sys/cdefs.h
.... /usr/include/x86_64-linux-gnu/bits/wordsize.h
... /usr/include/x86_64-linux-gnu/gnu/stubs.h
.... /usr/include/x86_64-linux-gnu/gnu/stubs-64.h
.. /usr/include/x86_64-linux-gnu/bits/errno.h
... /usr/include/linux/errno.h
.... /usr/include/x86_64-linux-gnu/asm/errno.h
..... /usr/include/asm-generic/errno.h
...... /usr/include/asm-generic/errno-base.h

Any ideas?

For a "simple" build with
../../gcc.gnu.org/trunk/configure --prefix=/local/gnu/install/gcc-8-host 
--enable-languages=c,c++ --enable-checking=release --disable-bootstrap 
--build=x86_64-linux-gnu

the same occurs.

Johann