Re: Compiling glibc: mutex-solid.c:20:10: fatal error: cthreads.h: No such file or directory

[haha wang]

I have founded that at 15 Nov 2020, commit a1ede3a40249ea2efe54e182998bd8519e37a31e,  sthibaul have fixed includability of <hurd/signal.h> in all standards and removed the dependence of the `cthread.h`. But it hasn't been released and I would get the GLIBC source directly from the git repo.

 

15.01.2021, 22:34, "haha wang" <hahw...@yandex.com>:

I try to compile the Hurd from the source the first time with the help of cross-hurd. By calling `bash bootstrap.sh", the compiling procedure goes and passes a few stages.

 

```

cd src &&

compile_binutils &&

compile_gmp &&

compile_mpfr &&

compile_mpc &&

compile_gcc &&

compile_pkgconfiglite &&

install_gnumach_headers &&

install_gnumig &&

install_hurd_headers &&

compile_first_glibc &&

compile_full_gcc &&

compile_second_glibc &&

print_info "bootstrap.sh finished successfully" &&

exit 0

```

but it fails and the `compile_first_glibc` stage and get the following error:

 

```

mutex-solid.c:20:10: fatal error: cthreads.h: No such file or directory

20 | #include <cthreads.h>

| ^~~~~~~~~~~~

compilation terminated.

make[2]: *** [/home/hahawang/code/hurd/my-cross-hurd/tmp/src/glibc-2.32.first_obj/mach/mutex-solid.o] Error 1

make[1]: *** [mach/subdir_lib] Error 2

make: *** [all] Error 2

mutex-solid.c:20:10: fatal error: cthreads.h: No such file or directory

20 | #include <cthreads.h>

| ^~~~~~~~~~~~

compilation terminated.

```

I have found the `cthread.h` within the source package of the gnumach but not at the include path of the cross-building Hurd. It seems that it haven't been installed yet.

By reading the `INSTALL-cross` guide, I have found the first compiling of glibc always fails and you can just ignore it. I do as it told, continue to compile gcc again. But the second compiling of gcc failed too and dumped the following error:

 

```

cc1: note: self-tests are not enabled in this build

cc1plus: note: self-tests are not enabled in this build

In file included from ../../../gcc-9.2.0/libgcc/libgcc2.c:27:

../../../gcc-9.2.0/libgcc/../gcc/tsystem.h:87:10: fatal error: stdio.h: No such file or directory

87 | #include <stdio.h>

| ^~~~~~~~~

compilation terminated.

make[2]: *** [_muldi3.o] Error 1

make[1]: *** [all-target-libgcc] Error 2

make: *** [all] Error 2

```

It seems that compiling gcc the second time needs glibc to provide a working `stdio.h`, but the glibc also needs a second compiling after the compiling of gcc succeeds. Now it stuck. I know its a chicken-and-egg problem, but how to fix it? Should I replace gcc with another version or find some patch files? Thank you in advance.

 

GCC and GLIBC version:

[1] GCC: gcc-9.2.0

[2] GLIBC: glibc-2.32