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
